| 引用本文: | 周新贵,张长瑞,周安郴,等.纳米Si-C-N粒子增强Si3N4 复合材料的结构与性能.[J].国防科技大学学报,1999,21(3):38-40.[点击复制] |
| Zhou Xingui,Zhang Changrui,Zhou Anchen,et al.The Structure and Property of the Nanometer Si-C-N Reinforced Si3N4 Composites[J].Journal of National University of Defense Technology,1999,21(3):38-40[点击复制] |
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| 纳米Si-C-N粒子增强Si3N4 复合材料的结构与性能 |
| 周新贵1, 张长瑞1, 周安郴1, 刘宪明1, 陈大明2, 彭应国2 |
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(1.国防科技大学 材料工程与应用化学系 湖南 长沙 410073;2.北京航空材料研究院 先进复合材料国防科技重点实验室 北京 100083)
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| 摘要: |
| 本文用Si-C-N纳米微粉做增强相, Si3N4 微粉为基相, 采用热压的方法制备了SiCp/Si3N4 纳米复相陶瓷, 所得的SiCp/Si3N4 复合材料的室温弯曲强度为878.5MPa, 断裂韧性达11.96MPam1/2, 同时应用扫描电镜(SEM)、高分辨透射电镜(HRTEM) 对其结构进行了观察, 讨论了结构与性能之间的关系。 |
| 关键词: Si-C-N 纳米微粉, 热压, SiCp/Si3N4, 结构 |
| DOI： |
| 投稿日期：1998-08-12 |
| 基金项目: |
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| The Structure and Property of the Nanometer Si-C-N Reinforced Si3N4 Composites |
| Zhou Xingui1, Zhang Changrui1, Zhou Anchen1, Liu Xianming1, Daming Chen2, Yingguo Pen2 |
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(1.Department of Materials Engineering and Applied Chemistry, NUDT, Changsha, 410073;2.National Key Laboratory of Advanced Composite, Beijing Institute of Aeronautical Materials, Beijing 100083)
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| Abstract: |
| Nanometer composites are prepared by hot-pressing-sintering method in the paper, using nanometer Si-C-N particles as reinforce phase, Si3N4 as matrix phase, the bending strength of the materials reaches 878.5MPa and the fracture toughness reaches to 11.96 MPam1/2. The hot-pressed samples structure is characterized by scanning electron microscopy (SEM) and high resolution transmission electron microscopy (HRTEM) at the same time, the relationship between the structure and the property is discussed. |
| Keywords: Si-C-N nanometer particle, hot-pressing, SiCp/Si3N4, structure |
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