Carbothermic synthesis of silicon in 150 kW DC arc furnace for solar applications
M.A.Arkhipov, A.B.Dubovskiy, A.A.Reu, V.A.Mukhanov, S.A.SmirnovaMineral Ltd., 1, Institutskaya st., Alexandrov, Vladimir Region, 601650 Russia Abstract Reaction ability of high purity raw materials in briquette could be improved by using inorganic catalyst that can be added in amount 2-4 weight...
Read More →Striae-free and Bubble-free Optical Syntheitic Quartz
M.A.Arkhipov, E.G.Sopeleva Mineral Ltd. The uniformity of refractive index is quite important for many optical applications of quartz. It is known that not uniformity can be easy detected by so called shadow-method described below in paragraph 3. Now many...
Read More →The surface acoustic wave (SAW)
«Mineral» company produces the surface acoustic wave (SAW) and bulk acoustic wave (BAW) delay lines. Delay lines are designed for pulses (with linear frequency modulation) forming and processing. Elements of ultrasound delay lines based on the synthetic quartz crystals...
Read More →Synthetic piezoquartz
One of the first places among the synthetic minerals which can be applied in technology and industry belongs to the synthetic quartz due to its good piezoelectric and optical properties. Synthetic types of piezoquartz raw materials are the indispensable...
Read More →ZnO Single Crystal Substrate
New substrate for GaN film Typical Properties Purity Wt %. Impurity: 99.99 Mg:<.0005 Al:<.0030 Si: 0.00з0 Тi:.0010 Cu: < .00з0 Fe:< 0.005 Ca: <0005 Ag: < .0002 Crystal Structure Hexagonal: a= 3.252 , c = 5.313 Gowth Method Hydrothermal...
Read More →Zinc oxide (ZnO) synthetic single crystals
Zinc oxide single crystals having semi-conductive and piezoelectric characteristics are the promising materials for using in various fields of electronic engineering. Such properties of ZnO single crystals as the high values of both band gap width and electromechanical coupling...
Read More →Application ZnO
The crystals of ZnO have the unique combination of semi-conductive, piezoelectric, optical and temperature properties in comparison with the other crystals. These properties provide for successful application of zinc oxide crystals in different fields of science and engineering (piezoelectric...
Read More →Hydroxyapatite and β- Tricalcium phosphate
Mineral Ltd. developed hydrothermal technology of synthesis hydroxyapatite (HAP) and β tricalcium phosphate (β-TCP) of purity 99.9%. We use HAP and β-TCP powders for manufacturing porous granules of composite HAP/ β-TCP of bone void fillers and HAP spherical granules...
Read More →Production of BAW and SAW quartz wafers, acoustic lines, and delay lines
Mineral Ltd. has a complete production cycle of surface and bulk acoustic wave (SAW and BAW) devices based on piezoelectric quartz. The production cycle involves: the hydrothermal growth of piezoelectric quartz crystals of any known orientation; the crystal wafering;...
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