化/化纤维单体陶的先进制造方法和机械性能
Qingqing Chen1, Yuan Zhang1, Liuxin Chao1
1Department of Materials Science and Engineering, College of Mechanics and Materials, Hohai University, Nanjing 211100, China.
Materials (Basel, Switzerland)
|September 28, 2023
概括
化 (Si3N4) /化 (BN) 纤维陶是使用湿和热压制开发的. 优化纤维直径改善了微观结构和机械性能,增强了高温应用.
科学领域:
- 材料科学 材料科学 材料科学
- 陶工程 陶工程
- 纳米技术 纳米技术
背景情况:
- 化 (Si3N4) 陶具有出色的高温性能,但遭受脆性骨折.
- 开发先进的陶复合材料对于要求高的结构应用至关重要.
研究的目的:
- 通过湿和热压制来制备Si3N4/BN纤维单质陶.
- 研究纤维直径对微观结构和机械性能的影响.
- 为了优化旋转泥,以提高材料性能.
主要方法:
- 在Si3N4/BN纤维的湿.
- 陶复合材料的热压巩固.陶复合材料的热压巩固.
- 微结构分析和机械性能测试 (曲强度,断裂性).
主要成果:
- 旋转泥表现出高度的稳定性和可旋转性.
- 减少Si3N4/BN纤维直径导致材料密度提高.
- 优化的陶 (0.9毫米纤维直径) 实现了357 ± 24 MPa的曲强度和8.8 ± 0.36 MPa·m1/2的断裂性.
结论:
- 湿和热压是生产高性能Si3N4/BN复合陶的有效方法.
- 纤维直径是定制微观结构和机械性能的一个关键参数.
- 这些先进的陶显示出对高温结构应用的前景.
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