通过高温高压方法制备了一种晶化程度较高的类石墨层状BC3化合物.在5.5GPa压力条件下,温度越高,制得的硼碳样品晶化越好,电阻率越小.在1500℃、5.5GPa下制得的层状硼碳样品的电阻率ρ=1.2×10-4Ω·m,略大于同等条件下制备的纯碳样品的电阻率ρ=1.1×10-4Ω·m.这种层状硼碳化合物在620℃左右开始氧化,比纯碳样品的初始氧化温度高大约100℃,替代的硼明显的改善了碳的抗氧化性能.
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