Facet-ground composite body

FIELD: process engineering.

SUBSTANCE: decorative composite body (1) comprises glass body (2) and polymer (3) to cover partially said glass body (2). Portion of glass body surface is located on outer surface of decorative composite body (1). Note here that at least two adjacent areas (8) of glass and polymer material (3) on composite body (1) outer side are ground in as-boded state. Glass body (2) areas verging on polymer material (3) are provided, at least partially, with mirror coat.

EFFECT: ruled out air bubbles and optical defects.

21 cl, 22 dwg

 

The invention relates to a decorative composite body comprising a glass body and partially covering the glass body of polymeric material, and a portion of the surface of the glass body is located on the outer side of the decorative composite body, and at least two adjacent spaced from the outer side of the composite body pane of glass and polymeric material are ground bound state.

Decorative elements, which is the composition of decorative stone and polymer material are already known in the prior art, most often polymeric material is applied around a decorative stone in liquid form and then cured.

An example of such a composite body shown in DE 35 03 941, where the metal or plastic objects are placed in the form and partially protrude outwards from the top end of the form. This form is filled with liquid filler, and the surface after curing of the filler smoothly polished. The disadvantage of this method is that it does not apply to decorative stones from glass, as they are critical about their grinding.

In DE 295 19 925 described decorative object, which includes a custom made, for example, glass decorative stone is poured into the cured mass. After curing it is possible ø imovane this environmental decorative stone mass. Provided also supply the masses with embedded in her decoration glass shell, and in this case it is possible to grind this shell. The drawback to this is that the cured mass or glass shell require machining in a special grinding process.

The decorative composite bodies containing glass body which is at least partially embedded in the polymer material, there is a problem, namely, that in the boundary areas between the glass body and a polymer material can appear air bubbles and other optical defects that adversely affect the aesthetic appearance of the decorative composite body. Such defects, respectively faults can occur during the connection of a polymeric material and glass body, glass body, for example, is poured into the polymeric material, respectively, is filled with them.

Therefore, the purpose of this invention is to avoid the above disadvantages, respectively, to expand describes the scope and to get a more quick and simple to manufacture decorative composite body, without concurrent negative impact on the appearance of the decorative composite body, while the effect on the appearance of decorative whom osanago body favorable.

This is achieved by using decorative composite body with signs of paragraph 1 of the claims.

The acceleration of the production process is possible, first of all, when grinding at least two adjacent panes of glass and polymeric material, and these adjacent areas are located on the outer side of the composite body in a bound state, that is, together, as two adjacent regions need only one grinding process, however, is only one tool grinding, and this makes it possible to abandon time-consuming change of various means for grinding the polymer material and glass.

In the above-mentioned prior art, in which the glass body and the polymeric material should be ground separately, particularly problematic is the mutual agreement polished areas of the glass body and polished areas of the polymer material. This crucial shortcoming can be overcome by using the present invention, which can be provided accurately adjusted boundary surface. Due to the absence of necessary accounting boundary surface between the glass and the polymer material may further simplification and acceleration of the grinding process. In addition, during the process of grinding the glass body and karnego material in the bound state is ensured by a uniform surface roughness, in particular, even in the boundary region between the glass and the polymer material, where thanks in large part managed to avoid the formation of edges along the boundary surface. However, if these areas were developed separately and then combined, such precision would be achievable only with difficulty. In particular, the resulting traces of grinding in the boundary region between the glass and the polymer material under a microscope you can judge if you have completed the process of grinding in a bound state or not. Also on the state of the adhesive joints in composite bound state of the body, the conclusion is made about the process of grinding.

To ensure the possibility offered by the invention process joint grinding of adjacent areas of the glass and polymer material, the properties of the polymer material must be coordinated with the appropriate properties of the glass, which is less influenced. The most significant properties of the polymer material, which should be selected for grinding in conjunction with glass body, applies, in particular, the hardness. This hardness of the polymer material should be selected so that the glass body and the polymeric material could be ground together. Too much hardness leads to small, compared with glass, the removal of material, so that the mother is l glass body and the polymeric material can be removed evenly, accordingly, when grinding the polymeric material will have a large heat dissipation, so that the glass body may be damaged. Too low a hardness of the polymer material, on the contrary, leads to too rapid removal of the polymer material in comparison with glass body, and uniform removal of the polymeric material and the glass material of the body also becomes impossible.

It is therefore important that the coefficient of thermal expansion with increasing temperature polymeric material. As each grinding process takes place with evolution of heat and increasing a temperature of the material is too strong expansion of the polymer material would be adversely that in the worst case could mean the gap connection with glass body. It is therefore important that the coefficient of thermal expansion of the polymer material was as low as possible or match the coefficient of thermal expansion of the glass body.

A particularly important parameter for the grinding process is the coefficient of friction between applied by means of grinding and sanding material. It can go as a friction clutch, and the coefficient of sliding friction. Thus for activities related to the status of the grinding process, which is not able to provide the t negative impact on the connection between the glass body and a polymer material, it is important that the coefficient of friction between the tool grinding, which should be treated composite body, and a glass body is almost the same as the coefficient of friction between the same by means of grinding and a polymer material. Due to this matching coefficients of friction allows joint grinding of the glass body and a polymeric material.

The outer region of the composite body can be improved and brought into line with the wishes of the consumer, on the one hand, by using a grinding process, and on the other hand, with the subsequent mechanical processing such as polishing. For the connection between the glass body and the polymer material within the composite body additional machining is impossible. Here there is a possibility that appears and even will be seen some ugly effects, such as, for example, air bubbles. Therefore provides for the implementation of those areas of the glass body, which are located inside the composite body and border areas of polymeric material, applying a mirror coating, for example, by spraying onto the glass body reflecting layer before formation of the composite body. Thus, in this embodiment, the glass body to them is no mirror coating on the boundary surfaces or at least in the areas of the boundary surfaces with the polymer material. Adverse aesthetically air bubbles, respectively, the rough boundary surface with a polymeric material because it becomes indistinguishable, and the properties of refraction and reflection of decorative stones retained or even improved.

The transition between the polymer material and glass can be uniform and smooth, particularly if the glass body before applying the polymeric material has passed the appropriate machining. But can also be provided that the transition is performed unevenly, for example, has a toothed shape, making in areas without mirror coatings are achieved other properties of refraction and reflection.

Other preferred embodiments of the invention are defined in dependent clauses, respectively, are explained in more detail below.

In one of the preferred embodiments of the invention, all located on the outer side of the adjacent ground area ground bound state. Due to this, it may be possible to further accelerate the production process and perform machining composite body for a single grinding process. In private the tee, composite body comprising a glass body and a polymeric material, may be made without regard to external form and then be ground to the desired shape in a single grinding process. But at the same time, however, it may be provided that only the grinding process includes various operations, during which, for example, the roughness of the grinding tools is reduced and the surface of the composite body because this is becoming smoother. It is important, however, that in each of these operation related field glass and polymer material, which are subjected to the same grinding, polished in a bound state.

In one of the preferred embodiments of the invention provides that the surface of the composite body is sanded on the face area, making possible the emergence of a particularly attractive optical effects, for example, the creation of decorative stone. However, at least one face includes the polymer material and the region of the glass body, which are ground in a bound state. But can also be provided by the execution of the composite body and/or the glass body is almost square shape. The advantage of this is that the original form of the composite body is not meatballs values, as per the grinding process can be simply manufacturing composite body square shape.

Important for the properties of the polymer material are, of course, are polymeric materials. While it is preferable to provide, as an integral part of the polymer material one - or multi-component injection-molding resin. These include, for example, polyester resin, epoxy resin, polyurethane resin, acrylic resin, vinyl ester resin or a hybrid resin.

The aforementioned molding resin can serve as the base polymer material. To obtain the desired material properties, in particular the desired surface properties, in one particularly preferred embodiments of the invention provided that the polymeric material includes additives that are used to change material properties, for example to reduce the coefficient of thermal expansion. These fillers include ground-up glass, beads, glass beads, glass beads, respectively, microscopic hollow balls, quartz flour, stone flour, limestone flour, aluminum trihydrate, metal powder, etc.

In addition, you can provide that in a polymeric material was injected additives, which are, in particular, to improve the removal of air, the properties of the current is the input, properties of wetting, adhesion, or to reduce the viscosity. These properties are reflected, on the one hand, in the manufacture of polymeric material, and on the other hand, the connection of polymeric material and glass body.

In one of the preferred embodiments of the invention provided that the polymeric material includes creating the effect of substances that are used for certain optical effects. These decorative substances include, for example, pigments such as colored pigments, pigments for imparting effects, the so-called "After Glowing Pigments, such as, for example, mother of pearl, or phosphorescent pigments, which can be made slower, respectively, long-lasting glow effect.

When selecting a polymeric material can be provided that the polymeric material will be opaque and have, in principle, any color. But can also be provided by the use of at least translucent polymeric material, for example, to make visible the called decorative substances effects.

In principle, in particular, use is made in the bound state the grinding process, you can get any form of the composite body. In one of the embodiments of the invention can accommodate glass what about the body in the depressed polymer material. Thanks this can be achieved particularly attractive optical effects.

In one of the embodiments provides for the implementation of a composite body with a luminous means. This luminous means can be located between the glass body and a polymeric material within a decorative composite body. Because of this composite body, in particular if it is optically attractive polished area is attractive lighting device, in particular for the background lighting. Especially preferred in this application as a luminous means one or more LEDs, as they are very possibility of variation from the point of view of radiation they range, long service life, low energy consumption, compact design and that is especially important for such a composite body, low heat dissipation.

It may be provided that in the composite body made the drilled hole, through which is provided the power supply of the luminous means, and where can be found the necessary connecting cables or external light sources, such as, for example, a battery or batteries. This allows the location of the lighting device in the composite body.

For this is the second polymeric material can be placed metal sleeve, which are luminous means or means, and means for power supply and other electronic accordingly, electrical component parts, that is, the lighting device.

The invention also concerns a method of manufacturing a decorative composite body, in particular a composite body described above, and in the form of a stack of glass body and then it is filled with the liquid, but cured polymeric material. This polymeric material is cured, forming a connection with a glass body. Then, after curing the polymer material and the connection formation is grinding at least two adjacently located on the outer side of the composite body areas of glass and polymeric material in the bound state. But it can also be envisaged that some or all of the located on the outer side of the composite body adjacent areas of glass and polymeric material are milled in the bound state. The form itself can be used for other casting processes or herself to be part of a composite body.

The benefits of such a grinding process in a bound state, as described above.

Particularly attractive effects are obtained when one of the options proposed by the invention method is opposite body, at least partially polished on the face.

To implement the joint, that is in the bound state, the grinding process, the properties of the polymer material must be consistent with the properties of glass. Thus it is possible to provide that the polymer material included one - or multi-component injection resin which is in liquid form is poured into the form in which it was laid glass body. To control the material properties it is possible to ensure that the polymer material when it is still in liquid form, was introduced fillers, using that achieve the desired surface properties and other desired properties of the material. These include, in particular, the desired hardness, in particular, the surface hardness achieved characteristics of cutting or low coefficient of thermal expansion with increasing temperature polymeric material. These fillers include ground-up glass, beads, glass beads, glass beads, respectively, microscopic hollow balls, quartz flour, stone flour, limestone flour, aluminum trihydrate, metal powder, etc.

In one embodiment of the proposed invention the method is provided by the introduction of yet uncured polymeric material other additives to improve obrabatyvaemoi and polymer material. These include additives to improve the removal of air, which when cured polymer material reduces the formation of air bubbles, to improve flow characteristics, thereby improving the uniform filling of the form with the filled polymeric material, to improve the wetting properties, thereby improving the coating surface of the glass body, which is not located on the outer side of the composite body, to improve adhesion, due to which it becomes possible to improve the connection between glass and body of polymeric material, or to reduce the viscosity.

In addition, can also be provided by the introduction in the not yet cured filler creating the effect of substances. These give the effect of substances are used to obtain optical effects, thanks to the invention of the composite body seems more attractive. These give the effect of substances include, in particular, pigments such as colored pigments, pigments for effects or pigments with afterglow (After-Glowing Pigments"), such as, for example, mother of pearl, or phosphorescent pigments.

The connection of the glass body with a polymeric material occurs when the liquid polymeric material, fill in the form with glass body, cures. The benefit is Ara adhesion of polymeric material with a glass body after curing occurs by the invention of the composite body. Depending on the applied resin material curing occurs under a variety of conditions. In the case of multi-component injection-molding resin can be cured polymer material at room temperature for an extended period of time. But, in particular, in the case of one-component casting resin can also be provided by curing at an elevated temperature from 20°C to 200°C. May also conduct curing process with different stages at different temperatures or regulation of the process of curing with ultraviolet radiation. This applies, in particular, the case of polymeric materials, curable by ultraviolet radiation.

To complete the holes in one of the options proposed by the invention a method is provided before pouring a liquid polymer material placement on the glass body of the metal sleeve, which after curing the polymer material remains and serves as a recess for accommodating the luminous means or additional of the respective components, that is, the lighting device.

Other details and advantages of the present invention are explained in more detail below with the description of the figures with reference to the drawings.

They show:

Fig. 1a-1d are three types in Persian is active, and a side view of one embodiment of the proposed invention the composite body,

Fig. 2a-2c two views in perspective and side view of another embodiment of the proposed invention the composite body,

Fig. 3a-3d are two views in perspective, side view and top view of another alternative implementation of the present invention, a composite body,

4 is a cross-section of the invention composite body placed in it the lighting device

Fig. 5a and 5b is a bottom view, and a cross section of another embodiment of the proposed invention the composite body placed in it the lighting device

Fig. 6a and 6b is a schematic image of the manufacturing process proposed by the invention is a composite body,

Fig. 7a-7c is a schematic image of the process of joint surface area of the glass and the polymer material, and

Fig. 8a-8c - other schematic picture of the process of joint grinding of the glass body and a polymeric material.

In Fig. 1a-1c shows the views in perspective of the first variant implementation of the invention the composite body 1, whose outer surface is polished with irregular facets. The outer side of the decorative composite body 1 is part of p the surface of the glass body 2. These areas are represented by points. Those areas outside of the composite body 1, which is made of a polymeric material, do not contain points. Passing from the outside of the composite body 1 of the boundary line between the polymer material 3 and the glass body 2 is curved, i.e. the boundary area between the polymer material 3 and the glass body 2 is not smooth and not smooth. At least those aspects that have as a polymeric material 3 and the glass 2, and which are contiguous, are in accordance with the invention, regions 8, honed in the bound state. In the example shown here the implementation of all areas, i.e. all faces of the composite body 1 are ground in a bound state. On fig.1d shows the side view depicts the composite body 1. Clearly visible that the polymeric material 3 at least partially cover the glass body 2.

In Fig. 2a-2c shows the views in perspective of another embodiment of the proposed invention the composite body 1, which has almost the shape of a rectangular parallelepiped. Those areas outside of the composite body 1, which is made of glass 2, again represented by points, while the area outside of the composite body 1 made of the resin material 3, do not include periods. At least, shows otsl twanny angle, where there are adjacent as polymer material 3 and the glass 2, is an area of 8, polished in a bound state of the composite body 1. Though consisting only of a polymeric material sanded area, for example, located opposite the glass body the end of the composite body 1, in principle, could be oslavany already to connect with glass body 2, preferably, however, the grinding of these areas in the bound state. On fig.2b shows a corresponding side view of this variant implementation of the composite body 1.

Another variant implementation of the invention the composite body 1 shown in Fig. 3a-3d, and figa and 3c shows a perspective view, while on fig.3b shows a side view, and fig.3d - top view. From the bottom side of the composite body 1 is the supporting panel 7. This support panel 7 may be made of the same polymer material 3, and a composite body. But can also be provided by the manufacturer of the supporting panel 7 made of metal, other polymeric material or glass. Located above the support panel 7 of the polished area on the face, and the face is made irregular. Located on the outer side of the composite body 1 pane of glass 2 again represented by points. All composite body 1 are ground in a bound state, the AK again there are related areas 8 of glass and polymer material, polished in a bound state.

Figure 4 shows another variant of implementation of the composite body 1, and the field of polymer material 3 shows a shaded, while the pane of glass 2 is not shaded. From the bottom side of the composite body 1, i.e. on the side which is opposite to the glass body 2, is supporting panel 7. In polymer material 3 has a recess 12 and the metal sleeve 10, the inner part which at least partially forms the recess 12. At the end of the metallic sleeve 10 located opposite the supporting panel 7, is a luminous means 9 in the form of an led, which is located on the circuit Board 11. Other e, respectively, electrical components, as well as power tools such as, for example, the battery is already known in the prior art and to simplify the image in this figure is not shown. Electronic components may, in particular, to enable the control unit and/or control, which respectively can be adjusted, respectively, to control the color and/or brightness of the light emitted. The luminous means 9 may also include multiple, in particular, multi-colored LEDs.

On figa shows a bottom view of another embodiment of the proposed invention the components of itogo body 1, moreover, the supporting panel 7 is transparent and framed areas of the polymer material 3. Through the support panel 7 visible metal sleeve 10 and the circuit Board 11 located luminous means 9, in this case, the two LEDs. The part can also be detected in the notches 12 are made in the form of a cavity, so that it can discharge heat emitted from the luminous means 9.

On fig.5b shows a cross-section of a variant of implementation of the composite body 1, and distinct glass body 2 and is made of polymer material 3 areas. Boundary surface between the glass 2 and the polymer material 3 in this case is smooth and even.

On figa shows a schematic picture of the proposed invention a method of manufacturing a composite body 1. In a form 4 for casting, which, for example, can be made of metal, laid the glass body 2. Using the molding tool 5 polymer material 3 in a liquid state is poured into the form 4 for casting. The polymeric material 3 may, for example, include one - or multi-component injection-molding resin. After pouring the resin material 3 is cured, respectively, under the influence of the ambient temperature, and already associated composite body 1, which consists of a glass body 2 and the resin material 3 may be treated as indicated in the data state.

On fig.6b shows another variant implementation of the invention. Form 4, which at the end of the manufacturing process is an integrated part of the composite body 1 has a recess 6 in which is located the glass body 2, the surface of which is partially irregular. Again using the foundry tool 5 polymer material 3 in a liquid state is poured into the recess 6. The form 14 for casting can be made from metal, glass or polymer material. After curing the polymer material 3 and connect it with the glass body 2 in the bound state are sanded area 8 with the outer side of the composite body 1, which consist of glass 2 and polymer 3.

On figa schematically shows the grinding process, and the composite body 1, comprising a glass body 2 and the field of polymer material 3, is ground in a bound state. The tool 13 grinding in this case is a rotating grinding wheel and the axis of rotation is perpendicular to the plane of the circle. On fig.7b shows how the composite body 1 is pressed against a rotating grinding circle 13, and under the action of grinding related field 8 of the glass 2 and the polymer material 3 are ground in a bound state and together. On figs depicts the end of p is ocess grinding, where the composite body back away from the grinding wheel 13, and now in the composite body are 8, polished bound together and including glass 2, and a polymeric material 3.

In Fig. 8a-8c shows a similar process of grinding, and in this case, the bound state is polished composite body 1 in the form of a rectangular parallelepiped consisting of a glass body 2 and areas of polymer material 3, so that, as shown in figs, there are areas 8 of the glass 2 and the polymer material 3, which are ground bound state. On fig.8b again you can see how related field 8 of the glass 2 and the polymer material 3 are ground together and in parallel with the glass body 2 and the resin material 3 is already before the grinding process were associated with the composite body 1.

Of course, that the invention decorative composite body, respectively, by the invention method is not limited depicted in the figures of the embodiments and should not be limited to them. In particular, the proposed invention the grinding process is not limited to a specific received by the surface roughness, and includes the whole range from rough grinding with a large removal of material to a smooth grinding surface.

Selected in the description of the criminal code of the cutting location, such as, for example, "top", "bottom", etc. relate to the directly described and shown in the figures, and changing the location must be within the meaning moved to the new location.

1. Decorative composite body comprising a glass body and partially covering the glass body of polymeric material, and a portion of the surface of the glass body is located on the outer side of the decorative composite body, and at least two adjacent spaced from the outer side of the composite body (1) region (8) of glass and polymer material (3) are ground in a bound state, characterized in that region of the glass body (2), bordering the polymer material (3)at least partially provided with a mirror coating.

2. Decorative composite body according to claim 1, wherein all located on the outer side of the composite body (1) region (8) glass (2) resin material (3) are ground in a bound state.

3. Decorative composite body according to claim 1 or 2, characterized in that the composite body (1) has one at least partially polished on the face area.

4. Decorative composite body according to claim 1 or 2, characterized in that the decorative composite body (1) and/or the glass body (2) almost have the shape of a rectangular parallelepiped.

5. ecorative composite body according to claim 1 or 2, characterized in that the polymeric material (3) includes single - or multi-component injection-molding resin.

6. Decorative composite body according to claim 1 or 2, characterized in that the polymer material (3) includes fillers, which serve to modify the properties of the polymer material (3).

7. Decorative composite body according to claim 1 or 2, characterized in that the polymer material (3) includes additives to improve the removal of air and/or flow characteristics and/or properties of wetting and/or adhesion and/or to reduce the viscosity.

8. Decorative composite body according to claim 1 or 2, characterized in that the polymer material (3) comprises creating the effect of a substance.

9. Decorative composite body according to claim 1 or 2, characterized in that the polymer material (3) opaque.

10. Decorative composite body according to claim 1 or 2, characterized in that the glass body (2)at least partially located in the undercut polymer material (3).

11. Decorative composite body according to claim 1 or 2, characterized in that in the area of the boundary surface between the glass body (2) and a polymer material (3) inside the decorative composite body (1) is the luminous means (9), preferably led.

12. Decorative composite body according to claim 11, characterized in that the power supply of the luminous means (9) OEM home button Flex cable is treno made in polymer material (3) hole (12), passing to the luminous means (9).

13. Decorative composite body according to item 12, characterized in that the inner wall of the bore (12) is formed by a metal sleeve (10).

14. A method of manufacturing a decorative composite body according to one of claims 1 to 13, and in the form of a stack of glass body and form fill cured polymeric material and the polymeric material solidifies with the formation of compounds with glass body, wherein at least two adjacent spaced from the outer side of the composite body (1) the area of the glass (2) resin material (3) is polished in a bound state.

15. The method according to 14, characterized in that the surface of the composite body (1)at least partially polished on the face.

16. The method according to 14 or 15, characterized in that the polymer material (3) includes single - or multi-component injection-molding resin.

17. The method according to 14, characterized in that in the not yet cured polymer material (3) to introduce the filler.

18. The method according to 14, characterized in that in the not yet cured polymer material (3) to introduce additives to improve the removal of air, flow characteristics, properties, wetting, adhesion, or to reduce the viscosity.

19. The method according to 14, characterized in that in the not yet cured polymer material (3) to impose creating eff the CT substance.

20. The method according to 14, characterized in that the polymer material (3) with glass body (2) in the form (4, 14) utverjdayut at a temperature from 20°C to 200°C.

21. The method according to 14, wherein prior to curing the polymer material (3) on the glass body (2) place the metal sleeve (10), which serves as a recess (12) for placement of the lighting device.



 

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1 cl

FIELD: chemistry.

SUBSTANCE: invention relates to technology of production of synthetic diamond material, which can be applied in electronic devices. Diamond material contains single substituting nitrogen (Ns0) in concentration more than 0.5 ppm and having such complete integral absorption in visible area from 350 nm to 750 nm, that at least nearly 35% of absorption is attributed to Ns0. Diamond material is obtained by chemical deposition from vapour or gas phase (CVD) on substrate in synthesis medium, which contains nitrogen in atomic concentration from nearly 0.4 ppm to nearly 50 ppm, and gas-source contains: atomic part of hydrogen, Hf from nearly 0.40 to nearly 0.75, atom part of carbon, Cf, from nearly 0.15 to nearly 0.30; atomic part of oxygen, Of, from nearly -.13 to nearly 0.40; and Hf+Cf+Of=1; ratio of atomic part of carbon to atomic part of oxygen, Cf:Of, satisfy the ratio nearly 0.45:1<Cf:Of< nearly 1.25:1; and gas-source contains atoms of hydrogen, added in form of hydrogen molecules, H2, with atomic part of the total quantity of present atoms of hydrogen, oxygen and carbon between 0.05 and 0.40; and atomic parts of Hf, Cf and Of represent parts from the total quantity of atoms of hydrogen, oxygen and carbon, present in gas-source.

EFFECT: invention makes it possible to obtain diamond material with rather high content of nitrogen, which is evenly distributed, and which is free of other defects, which provides its electronic properties.

17 cl, 11 dwg, 6 ex

FIELD: metallurgy.

SUBSTANCE: monocrystalline diamond material that has been grown using a CVD method and has concentration of single substituent nitrogen [Ns0] of less than 5 ppm is irradiated to introduce isolated vacancies V to at least some part of the provided CVD-diamond material so that total concentration of isolated vacancies [VT] in the obtained diamond material is at least more than (a) 0.5 ppm and (b) by 50% more than concentration [Ns0] in ppm in the provided diamond material; after that, annealing of the obtained diamond material is performed so that chains of vacancies can be formed from at least some of the introduced isolated vacancies at the temperature of at least 700°C and maximum 900°C during the period of at least 2 hours; with that, irradiation and annealing stages reduce the concentration of isolated vacancies in diamond material, due to which concentration of isolated vacancies in the irradiated and annealed diamond material is <0.3 ppm.

EFFECT: diamonds obtain fancifully orange colour during such treatment.

16 cl, 3 dwg, 4 tbl

FIELD: personal use articles.

SUBSTANCE: invention is designed for being used in jewellery industry. The method for faceting diamonds with a culet involves faceting of a round-shaped diamond faceted so that to form a culet. Within the culet, one grinds out and polishes arc-shaped grooves from opposite edges of the diamond bottom facets. The arc-shaped grooves have a section angle equal to 41°.

EFFECT: ensuring complete reflection of light from the culet thus creating additional brilliance of the stone.

2 dwg

FIELD: personal use articles.

SUBSTANCE: invention is designed for being used in jewellery industry. The method for faceting diamonds with a culet involves faceting of a round-shaped diamond faceted so that to form a culet; within the culet, one grinds out and polishes an internal pyramid with a polygon-shaped base the sides whereof are parallel to those of the culet polygon. The pyramid is ground out and polished at the angle between opposite sides equal to 98.5°.

EFFECT: ensuring complete reflection of sunbeams from the culet thus creating additional brilliance of the stone.

2 dwg

FIELD: process engineering.

SUBSTANCE: invention is intended for use in production of jewelry. Proposed method comprises faceting round diamond to form a culet. Inner taper with solid angle of 98.5° is ground and polished in said culet.

EFFECT: complete reflection of light from cullet to create extra stone brilliance.

2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to processes used in operation at high pressure and modifying substances physically. Proposed method comprises placing diamond in reaction cell in pressure transmitting medium, increasing pressure in reaction chamber and it cooling. Note here that thermal treatment is carried out at temperature increase rate of 10-50°C/s and at 2000-2350°C by passing electric current via heater in cell from programmed power supply source with due allowance for temperature relaxation in said cell in heating. For this, note also that temperature relaxation constant is defined. Said cell is cooled after heating by switching off power supply in forming short diamond heating pulse in temperature range of over 2000°C with diamond total stay time smaller than 30 seconds. Allowance for temperature relaxation in said cell in heating for heating rate Vt and pre-definition of cell temperature relaxation constant τ is made by setting in said programmable power source the maximum temperature of heating to τVT above maximum treatment temperature of 2000-2350°C.

EFFECT: changing colour of low-grate natural diamond without notable graphitisation, high-quality gem diamonds.

2 cl, 5 dwg, 3 ex

FIELD: physics.

SUBSTANCE: inside a diamond, in the region free from optically impermeable irregularities, an image is formed, which consists of a given number of optically permeable elements of micrometre or submicrometer size, which are clusters of N-V centres which fluoresce in exciting radiation, wherein formation of clusters of N-V centres is carried out by performing the following operations: treating the diamond with working optical radiation focused in the focal region lying in the region of the assumed region where the cluster of N-V centres is located, while feeding working ultrashort radiation pulses which enable to form a cluster of vacancies in said focal region and which provide integral fluence in said focal region lower than threshold fluence, where there is local conversion of the diamond to graphite or another non-diamond form of carbon; annealing at least said assumed regions where clusters of N-V centres are located, which provide in said regions drift of the formed vacancies and formation of N-V centres, grouped into clusters in the same regions as the clusters of vacancies; controlling the formed image elements based on detection of fluorescence of N-V centres by exposing at least regions where image elements are located to exciting optical radiation, which enables to excite N-V centres and form a digital and/or a three-dimensional model of the formed image. Images formed in diamond crystals from clusters of N-V centres are visible to the naked eye, by a magnifying glass and any optical or electronic microscope.

EFFECT: image from a cluster of N-V centres is inside the crystal, cannot be removed by polishing and is therefore a reliable diamond signature and reliable recording of information without destroying or damaging the crystal itself.

46 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention is intended for used in production of jewelry. Proposed method consists in that the angle between opposite faces is made equal to 77°. Note here that faceting features the following parameters: diamond diameter D, total height H=0.76 D, site size d=0.67 D, girdle thickness r=0.08 D, height of top with girdle h1=0.11 D, height of bottom to girdle h2=0.65 D, height of bottom face twist h3=0.42 D, top inclination to girdle plane 10°, bottom inclination to girdle plane: ahead of twist 51.5°, behind twist 55°.

EFFECT: fivefold internal reflection of light rays and increased dispersion.

1 dwg

FIELD: metallurgy.

SUBSTANCE: procedure consists in ion-energy-beam processing diamonds with high power ion beam of inert chemical element of helium with dose of radiation within range from 0.2×1016 to 2.0×1017 ion/cm2 eliminating successive thermal annealing.

EFFECT: production of amber-yellow and black colour of diamond resistant to external factors at significant reduction of material and time expenditures of process of diamond upgrading.

1 dwg, 2 ex

FIELD: metallurgy.

SUBSTANCE: procedure consists in simultaneous growth of multitude of work pieces of moissanite crystals in cellular mould of forming graphite, in dividing them to separate crystals, in faceting, grinding and in polishing. Before faceting, grinding and polishing work pieces are first glued on a mandrel, then they are re-glued on a back side. Moissanite is polished on a ceramic polisher rotating at rate from 200 to 300 rpm with utilisation of diamond powder (spray) with dimension of a grain from 0.125 to 0.45 mcm, facilitating depth of grooves less, than length of light wave of a visible part of spectre. Also, cut and chipped edges of the work piece with defects not suitable for faceting, are crumbled and returned to a stage of growth. Grinding paste with size of a grain 0.25 mcm can be used for grinding.

EFFECT: increased quality of crystals, increased efficiency due to elimination of cutting operation; reduced expenditures for production and losses of material at cutting during work piece growth.

2 cl, 3 ex

FIELD: settings for holding gems.

SUBSTANCE: method comprises setting diamond in the mould so that its base side is in a contact with the bottom side of the top plate and injecting elastomer under pressure that holds the diamond in the clamping ring.

EFFECT: simplified method.

45 cl, 6 dwg

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