Synthesis of Calcium Hexaboride by Electrolysis of Molten Salt


HEXABORIDES of alkaline earth and rare earth metals have been central to numerous experimental and theoretical studies for over four decades. This interest is due to their tremendous variety and unique properties. Calcium hexaborides show low density (about 2.5 g/cm3 ), high hardness (25 to 30 GPa), a high melting point (2200 C), good electrical conductivity at high temperatures, and chemical stability. In addition, calcium hexaboride has such valuable properties as low work function, stable resistivity, and a low coefficient of linear expansion across a relatively wide temperature range. Calcium hexaboride is known to be the most effective deoxidizer in the production of pure copper and silver. It is also an excellent semi-finished product for abrasive tools and structural ceramics. The discovery of an unusual type of ferromagnetism in hexaboride CaB6 and SrB6 about 20 years ago caused a new surge of interest in them. The relatively high Curie temperature (600 K) was a surprise discovery because these compounds do not have partially occupied d or f electronic states. Extensive theoretical and experimental studies aimed at explaining the observed magnetic properties of the band structure of CaB6 are still being carried out. If you are looking for high quality, high purity, and cost-effective Calcium hexaboride, or if you require the latest price of Calcium hexaboride, please feel free to email contact mis-asia.

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