自发透行为Al矩阵进入碳纤维捆由Al-Ni二进制反应诱导
Jiaming Liu1,2, Xi Yang3, Shichao Liu4
1State Key Laboratory of Advanced Equipment and Technology for Metal Forming, Shandong University, Jinan 250061, China.
Materials (Basel, Switzerland)
|March 13, 2025
概括
这项研究使用无压透方法开发了一种Ni涂层碳纤维增强的Al矩阵复合材料. 优化过程通过改善界面微观结构,显著提高了最终的抗拉强度.
科学领域:
- 材料科学 材料科学 材料科学
- 复合材料 复合材料 复合材料
- 表面工程是什么?表面工程是什么?
背景情况:
- 碳纤维增强矩阵复合材料 (CF / Al) 提供高性能,但在接口粘合和透方面面临挑战.
- 碳纤维 (CF) 上的 (Ni) 涂层可以促进接口反应,并改善 (Al) 基质的湿透性.
- 开发CF/Al复合材料的高效和可扩展的制造方法对于先进的应用至关重要.
研究的目的:
- 研究一种无压透工艺,用于制造Ni涂层CF/Al复合材料.
- 分析透温度对界面微观结构和特性的影响.
- 优化制造过程以提高机械性能.
主要方法:
- 在碳纤维上无电涂装Ni.
- 无压力透Ni涂层CFs进入Al矩阵.
- 同步射线辐射成像用于观察透动态.
- 微结构特性 (例如,SEM,TEM) 和拉伸性测试.
主要成果:
- 通过Al矩阵实现了Ni涂层CF的自发透,由Al-Ni二进制反应驱动,最大速度为31.02±1.08μm/s.
- 增加透温度减少了缺陷,并促进了有益的Al-Ni界面反应.
- 最佳温度为720°C,导致了精细的 (Al+Al3Ni) 优质结构,取代了大型的Al-Ni金属间化合物 (IMC).
- 最终抗拉强度 (UTS) 达到135±4MPa,与Al矩阵相比增加了159.6%.
结论:
- 无压透是制造Ni-CF/Al复合材料的有效方法.
- 控制透温度是优化界面微观结构和减轻缺陷的关键.
- 增强的界面结构显著改善了复合材料的机械性能,特别是UTS.
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