Calcium hexaboride, a chemical called calcium borate, is mainly synthesized through carbothermal reduction, self-propagation, and other means. A material research institute in China and some universities have certain synthesis research technologies. ...…
A calcium hexaboride-reinforced aluminum matrix composite was prepared. The preparation method uses an aluminum boron master alloy and pure calcium as the sources of elemental boron and calcium. The preparation method is to first melt the aluminum bo...…
Calcium hexaboride is a black solid. Hardness 9. Relative density 2.33, melting point 2373-K. It is stable in the air at high temperatures. Insoluble in hydrochloric acid, hydrofluoric acid, and dilute sulfuric acid. Does not react with water. It can...…
Tin dioxide (SnO2), an important type of semiconductor with a wide band gap (Eg = 3.6 eV), exhibits excellent optical, electrical, and chemical properties and high thermal stability. In recent years, doped SnO2 and SnO2- based materials, such as Sb-d...…
Water reducer is a special chemical product added to the concrete mixture before pouring, belonging to a kind of concrete admixture.…
Tungsten is used extensively in quartz glass melting furnaces, sapphire crystal growing furnaces, and rare earth smelting faiences. Its temperature is typically above 2000. About Metal Alloy Vacuum Coating Tungsten Melting Pot Tungsten Crucibles: ...…
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