兴奋剂对SiCp/Al复合材料的微观结构和性能的影响通过无压透
Ruijie Feng1,2, Haibo Wu2, Huan Liu2
1School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
Materials (Basel, Switzerland)
|April 13, 2024
概括
(Ti) 兴奋剂显著改善了碳化颗粒/ (SiCp/Al) 复合材料的接口粘合和湿透性. 与TiO2不同的是,TiC兴奋剂可以增强密度和强度等特性,而不会产生不良反应.
科学领域:
- 材料科学 材料科学 材料科学
- 计算材料科学科学 计算材料科学
- 复合材料 复合材料 复合材料
背景情况:
- 碳化颗粒/ (SiCp/Al) 复合材料是具有可调节性质的先进材料.
- 无压透是SiCp/Al复合材料的常见制造方法.
- 优化接口属性对于提高复合材料性能至关重要.
研究的目的:
- 研究 (Ti) 兴奋剂对SiCp/Al复合材料的微观结构和性能的影响.
- 为了确定Ti兴奋剂对无压透过程的影响.
- 为了比较TiO2和TiC作为Ti来源的影响.
主要方法:
- 第一个原则计算模型接口湿和粘合.
- 实验性制造SiCp/Al复合材料使用无压透.
- 通过TiO2和TiC将Ti元素纳入SiC预型.
- 微结构分析和属性表征 (密度,曲强度,导热率).
主要成果:
- 第一个原则的计算预测了增强的Al/SiC接口湿和与Ti兴奋剂的结合.
- 添加TiO2和TiC都改善了化的Al透,这是由于增强的湿透性.
- TiO2的添加导致了N2大气中的AlN胡须形成,阻碍了密集化.
- TiC 兴奋剂改善了湿透性和接口强度,没有有害反应.
- 用TiC合的SiCp/Al复合材料实现了99.4%的相对密度,287 ± 18 MPa的曲强度和142 W·m-1·K-1的导热.
结论:
- 兴奋剂,特别是通过TiC,有效地增强了SiCp/Al复合材料的无压透和接口特性.
- 与TiO2相比,TiC是一种优越的剂,用于实现高密度和高性能SiCp/Al复合材料.
- 通过TiC兴奋剂优化界面工程导致SiCp/Al复合材料的优异机械和热性能.
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