Some aspects for sintering of β-rhombohedral boron |
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Authors: | Anatoliy Nechepurenko |
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Affiliation: | State einterprise “UNICHIM & Experimental plant”, Yekaterinburg 620134, Russia |
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Abstract: | The investigation of sintering conditions for magnesiothermic amorphous boron (MgmBn) powder is presented. The results of chemical and X-ray analyses of magnesiothermic boron (MgmBn) indicate that it consists of amorphous boron MgB12 and a lesser amount of β-rhombohedral boron. The MgmBn-sintering process is determined by the conditions of amorphous boron transformation into β-boron (crystallization), such as the process of decomposition of MgB12 followed by formation of the “new” centers of active elementary boron. As a result of the experimental investigations of this process the following three stages—thermal decompositions, crystallization and MgmBn sintering—were combined into one sintering process with the sintered bodies as a result of it. |
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Keywords: | Decomposition MgB12 Amorphous boron Sintering Crystallization β-boron |
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