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摘要: 报告了冲击波合成的纤锌矿型氮化硼（wBN）微粉颗粒的细观特征，包括形貌、比表面积、微密度、晶粒度及硼、氮原子数之比等的测量结果，反映wBN晶体中存在很高的微观缺陷密度。并对在大气、氮气及氩气氛中wBN微粉的热稳定性进行了分析。Abstract: We reported some main features of shock synthesized wBN ceramic powders by its morphology, specific surface area, microdensity, crystallite size as well as the B to N atomic ratio. These will reflect, from anoth side, the unique high defect density which exists in the wBN crystals. We also analyzed the observed behavior of wBN powders under ambient pressure and high temperature (up to 1 500 ℃) by TG and DTA observation in air, N2 and Ar gas.
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Akashi Tamotsu, Sawaoka Akira B. In: Graham R A, Sawaoka Akira B ed. High Pressure Explosive Processing of Ceramics, Charpter 6. Switzerland: Trans Tech Publications Ltd, 1987: 87. 谭华, 等. 高压物理学报, 1991, 5(4): 241. Borimchuk N I, Kurdyumov A B, Yarosh B B. Proceedings of the 5th All Union Detonation Symposium. Russian, 1991: 4. 谭华, 王龙书, 等. 高压物理学报, 1993, 7(3): 197. Bergmann O R, Bailey N F. In: Graham R A, Sawaoka Akira B ed. High Pressure Explosive Processing of Ceramics, Charpter 6. Switzerland: Trans Tech Publications Ltd, 1987: 65. 邵丙璜, 等. 爆炸合成金刚石原理及其应用. 见: 94国际金刚石制品与石材加工技术交流会论文集. 北京, 1994. Beauchamp E K. In: Graham R A, Sawaoka Akira B ed. High Pressure Explosive Processing of Ceramics, Charpter 6. Switzerland: Trans Tech Publications Ltd, 1987: 139. 石川欣造, 等. 开拓未来的新材料. 王魁汉, 等译. 北京: 冶金工业出版社, 1989. -
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