Thermal Stability of Al3BC3
Thermal Stability of Al3BC3
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DOI：
10.1111/j.1551-2916.2009.03171.x
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发表时间：
2009-09
影响因子：
3.9
通讯作者：
S. Lee;Hidehiko Tanaka
中科院分区：
文献类型：
--
作者：
S. Lee;Hidehiko Tanaka
The thermal stability of Al3BC3 powder was analyzed. Nearly X-ray-pure Al3BC3 powder was obtained through the calcination of the aluminum, B4C, and carbon mixture at 1800°C in Ar. In contrast to the former investigations, which reported the melting of so called “Al8B4C7” at 1800°C, Al3BC3 did not melt up to 2100°C. Instead, it decomposed by the vaporization of aluminum. The decomposition occurred distinctly at 1400° and 1900°C in flowing Ar and a sealed carbon crucible, respectively. The results indicated that the decomposition temperature depended on the partial pressure of aluminum vapour in the atmosphere.
