Mirror

 

(57) Abstract:

Usage: the invention relates to the field of optical devices, creating a visible light image of the subject, namely, flat, concave, convex reflective elements - mirrors used in instrumentation, technology, transportation, medicine, and everyday life. The technical result of the invention is the obtaining of a mirror with a durable, chemically resistant, high-strength protective coating. The mirror is a substrate of arbitrary geometric configurations, which by means of high-frequency plasma deposition, laser deposition, reactive cathode sputtering or high-temperature vacuum deposition of a protection layer of Zirconia, pure or with impurity atoms of rare earth and/or other chemical elements with impurity concentrations of 10-5-10-10atomic percent. 1 C. and 6 C.p. f-crystals.

The invention relates to the field of optical instruments, creating a light image of the subject in any geometric configuration. Such tools are intended for use in instrument engineering, medicine, aviation, rail and road transport, and everyday life.

The drawback of such mirrors is their high toxicity caused by the use in the process of amalgirovany mercury.

Development of a method of oxidation of aldehydes by the silver oxide was significantly expand the use of mirrors and improve their quality. However, due to low mechanical strength applied to the surface of the substrate a layer of silver was quickly destroyed under the influence of external influences and the mirror came into disrepair. Currently using mirrors reflecting layer which is deposited galvanically or by spraying.

In particular, it is known mirror (1), which is a substrate with an electroplating a layer of Nickel.

The disadvantage of this device should recognize the impossibility of obtaining unpainted, newschelsea over time, chemically inactive reflective coating.

Known Zeya/or tungsten, and/or zirconium and/or tin and fine gold.

The disadvantage of this mirror should recognize the faint image of the subject due to the small reflection coefficient and coloring.

It is also known mirror (3), which is a substrate of glass with a composite coating of oxides of silicon and titanium, deposited by pyrolytic decomposition of silicon and technoorganic connections.

The disadvantage of such mirrors should recognize low chemical resistance reflective coatings.

The prototype can recognize the mirror (4) consisting of a substrate, coated with a smoothing layer, a reflective layer of aluminum and highly transparent composite layer of protective coating consisting of zirconium dioxide, of a thickness of 0.5 to 5 μm. The substrate is made of metal.

The technical problem to be solved by the present invention is directed, is the design of a mirror with a durable and high strength chemically to the effects of mechanical, chemical and temperature factors a layer of protective coating with a low coefficient of light absorption.

The technical effect resulting from the implementation of izobretatelni and in everyday life.

The invention consists in receiving mirrors, containing a substrate coated with a protective layer of zirconium dioxide with a thickness from 0.5 to 1.4 μm, which differs from the prototype in that the surface of the substrate corresponds to not less than 9 grade purity, and zirconium dioxide doped to the impurity content of 10-5- 10-10atomic percent.

In the manufacture of mirrors can be used a substrate made of metal or another rigid material. Working (reflecting its surface is pre-treated to no less than 9th grade purity, i.e. to the quality at which the geometric dimensions of the violations of the ideality of the surface structure of the material (ledges, caves, sinks, cracks, etc. are comparable to atomic dimensions. Useful specifications such mirrors are achieved through the use of a new structural material - doped Zirconia, which has a high mechanical strength (to 8.5, and 9.0 on the Mohs scale), high tensile strength bending (800 - 1200 MPa), high fracture toughness.

thermal expansion coefficient of Zirconia in the range of operating temperatures (-40oC to +50oC) moodlogic, by controlled introduction of impurity atoms, mainly rare earth elements.

Zirconium dioxide retains high mechanical properties at temperatures up to 1000oC in an air environment, is resistant to aggressive chemicals (acids, alkalis, organic matter), has a low coefficient of friction and high wear resistance, is biologically inert.

The complex of physical and chemical properties of zirconium dioxide is used as the protective coating of the reflective surface of the mirror allows you to get environmentally friendly products, the service life of which is 5-10 times higher than the corresponding figure of the prototype. The geometric configuration and shape of the mirror surface with a protective coating of Zirconia can be arbitrary. The floor can be flat, convex or concave.

The above preferred implementations of the invention do not limit the possibility of its practical implementation. However, the use of coatings of Zirconia on the reflective surface of the mirror is a necessary condition for the realization of the invention. Also possible is the coefficient of reflection of light.

The invention can be implemented as follows.

Steel sheet cut down the procurement of required shape and size. The obtained preparation degrease in gasoline and electrochemically in a standard solution containing gidrookisi sodium and sodium carbonate, followed by washing of the workpiece in hot and cold water. Fat harvesting is etched first in hydrochloric acid solution followed by rinsing in running cold water. Then the substrate is subjected to electronic etching, and then re-etched in hydrochloric acid solution and washed in distilled water at a temperature of 20 - 25oC. surface finish meets 9-10 class purity. On the prepared surface of the substrate by means of high-frequency plasma deposition, laser deposition, reactive cathode sputtering or high-temperature vacuum sputtering put a layer of protective coating of zirconium dioxide with a thickness of 0.5-1.4 µm containing impurities in an amount of 10-5- 10-10atomic percent. After this operation, the substrate coated with the protective layer degreasing in ethanol.

Thus obtained mirror with the key, machinery, transport, medicine and everyday life.

Sources of information

1. U.S. patent N 3493428, class C 03 C 17/06, 1970

2. U.S. patent N 3619235, class C 03 C 17/06, 1971

3. USSR author's certificate N 129313, class C 03 C 17/25, 1960

4. U.S. patent N 4431268, CL G 02 B 5/08, 1984

1. Mirror containing a substrate with a deposited by spraying a protective layer of zirconium dioxide with a thickness of 0.5 to 1.4 μm, characterized in that the surface of the substrate corresponds to no less than 9 grade purity, and zirconium dioxide doped to the impurity content of 10-5- 10-10atomic percent.

2. Mirror under item 1, characterized in that use high-frequency plasma sputtering, or laser deposition, or reactive cathode sputtering, or high-temperature vacuum deposition.

3. Mirror under item 1, characterized in that for doping use rare earth elements.

4. Mirror under item 1, characterized in that the protective layer perform flat.

5. Mirror under item 1, characterized in that the protective layer perform convex.

6. Mirror under item 1, characterized in that the protective layer perform concave.

7. Mirror under item 1, characterized in that lane

 

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