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Colored glass-ceramic material |
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IPC classes for russian patent Colored glass-ceramic material (RU 2276114):
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FIELD: production of colored glass-ceramic materials based on natural, industrial raw materials and slag waste useful in building material industry. SUBSTANCE: Claimed material includes (mass %) high argil slag waste 5-25; soda (Na2CO3) 10-50; borax (Na2B4O7.10H2O) 20-60; and liquid glass 5-10. Said slag waste contains (mass %) SiO2 15; Al2O3 71.66; CaO 1.76; MgO 5.51; MnO2 0.05; Na2O 1.58; Fe2O3 1.93; K2O 2.20; TiO2 0.31. EFFECT: inexpensive materials having high mechanical and thermal properties. 3 ex
The invention relates to the field to create colored glass-ceramic materials based on waste metallurgical industry. Known Sigrun (synthetic granite). The main crystalline phase tigrana is wollastonite, providing material high physico-chemical, mechanical and decorative properties. Thus, the compressive strength is 500-550 MPa, TCLE - (80-85)·10-7To-1temperature 502-586°C. [P.D. Sarkisov// Tigran - new decorative building material: FR. scient. Tr./ VNII - EFM. M., 1983, Ser. Issue 1. P.15]. Also known decorative glass-ceramic material comprising, by wt.%: a mixture of phosphoric slag, phosphogypsum, sand and soda 25-75, cullet 8-20, the solution of liquid glass 5-7 [A.S. USSR №1502502 A1, epubl]. However, due to indicators of physical-mechanical characteristics and decorative properties, this material has a narrow scope. As a prototype can serve as decorative glass-ceramic material comprising, by wt.%: slag waste 30-75; borax 13-26; soda 7-24; liquid glass 5-20 [patent No. 2235073, epubl,]. The disadvantages of the prototype are low resistance to shock and limited color palette. The objective of the invention is the synthesis of inexpensive colored glass-ceramic material based on natural is about, technical raw materials and high-alumina slag waste, having a wide color gamut and indicators of physical-mechanical and thermal properties. This problem was solved through the development of colored glass-ceramic material having different colors (green, maroon, brick, black, dark brown, and others) depending on the physico-chemical conditions and technological parameters of synthesis, intended for use in the industry of construction materials containing high alumina slag waste metallurgical industry, soda, borax and liquid glass. In a colored glass-ceramic material comprising slag waste, soda - Na2CO3sum total - Na2B4About7·10H2Oh and liquid glass, use high alumina slag waste Belokalitvinskogo metallurgical plant, having the following composition, wt.%: SiO215,00; Al2About371,66; CaO 1,76; MgO 5,51; MnO20,05; Na2About 1,58; Fe2About31,93;2About 2,20; TiO20,31, in the following ratio, wt.%:
Colored glass-ceramic material has a wide color palette, indicators of physico-chemical and thermal properties. To achieve this goal in the composition of the raw mix is introduced slag waste, which is waste of metallurgical industry, having the following composition, wt.%: SiO215,00; Al2About371,66; CaO 1,76; MgO 5,51; MnO20,05; Na2O 1,58; Fe2About31,93;2About 2,20; TiO20,31. Stekloobrazovanie occurs as a result of physico-chemical processes of interaction of components of the mixture in the temperature range of 1100-1150°C. In the amorphous structure stellamarisa includes SiO2, Al2About3, CaO, MgO, Na2O2O, MnO2, Fe2About3, TiO2. The oxides MnO2, Fe2O3, TiO2perform the role of initiators of color formation in the synthesis of glass-ceramic materials of these compounds. The technical result - obtaining relatively inexpensive colored glass-ceramic material with high mechanical and thermal properties, intended for use in construction and architecture. Thus, the use of high alumina slag waste helps to dispose of the waste industry. In addition, expanding the raw material base for the building materials industry, is using high-alumina slag waste significantly reduces the process of making colored glass-ceramic materials. A mixture of borax, soda and solution of liquid glass is introduced to reduce the temperature of fusion of the material. Example 1. Colored glass-ceramic material can be obtained by careful preparation of a mixture of raw materials - mixture, boiling in landowych the crucibles in an electric furnace with silicafume heaters at a temperature of 1000-1100°C for 1 hour. Formed by the method of casting products are thermal, mechanical and chemical treatment to improve the characteristics of functional and aesthetic value. For tests taken charge, wt.%:
The material obtained has a rich brick color. The resistance of the material is 800°C. Temperature coefficient of linear expansion 194·10-7To-1. Resistance to shock 70 MPa, a compressive strength of 250 MPa. Example 2. Charge, wt.%:
The resulting material has a green color with dark brown splotches. The resistance of the material is 850°C. Temperature coefficient of linear expansion 176·10-7To-1. Resistance to shock 80 MPa, compressive strength of 280 MPa. Example 3. Charge, wt.%:
The resulting material has a Burgundy color and a high degree of damping. The resistance of the material 830°C. Temperature coefficient of linear expansion 180·10-7To-1. Resistance to shock 85 MPa, compressive strength of 300 MPa. Colored glass-ceramic material containing slag waste, soda Na2CO3, borax Na2B4About7·10H2Oh and liquid glass, characterized in that as the slag waste using high alumina slag waste metallurgical industry, having the following composition, wt.%: SiO215; Al2About371,66; CaO 1,76; MgO 5,51; MnO20,05; Na2O 1,58; Fe2O31,93;2About 2,20; TiO20,31, in the following ratio, wt.%:
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