Abstract
Silicon-Boron compounds were prepared by arc melting in Ar atmosphere from Si and B powders. The B content was changed from 50 to 90mol% (mole ratio of 1:1 to 1:8). From the result of the X-ray diffraction analysis, it was found that melted specimens were consisted of SiB4, SiB6, Si and B phases. The contents of free Si decreased with increasing amount of B. This means that, for the sample of Si-B with the mole ratio of 1:1 to 1:4, the peaks of free Si and B were recognized. For the sample of Si-B with the mole ratio of 1:5 to 1:8, the peaks of free Si, B, SiB4 and SiB6 were analyzed. The relative density of sample with the mole ratio of 1:5 and 1:6 were estimated as approximately 100%.
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