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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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BN/TiB_2纳米-微米复合粉末的制备及表征
Abstract:
利用化学溶液法,于酒精、水混合溶液中溶解分散H3BO3和CO(NH2)2,再加入TiB2,干燥后热处理合成了BN/TiB2纳米-微米复合粉末。通过差热-热重分析、X射线衍射和红外光谱分析,对合成产物进行了表征。结果表明BN合成反应在700～1100℃之间完成,BN/TiB2复合粉末经1500℃热处理时,非晶态BN向h-BN转化。利用扫描电镜、透射电镜分析了粉体复合前后的形貌及显微结构特征,结果表明BN包覆在TiB2颗粒表面获得了具有纳米-微米复合结构的BN/TiB2粉末。
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