在固化过程中通过增强粒子界面相互作用来诱导化诱导的颗粒吞没
Kai Zhao1, Xinchen Li1, Xiangting Liu1
1Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China.
Ultrasonics sonochemistry
|February 16, 2024
概括
声波化增强了二颗粒/矩阵复合材料中的颗粒吞没. 这个过程提炼了树岩结构,从而改善了工作硬化和更高的复合材料强度.
科学领域:
- 材料科学 材料科学 材料科学
- 金工业是金工业的一个方面.
- 复合材料 复合材料 复合材料
背景情况:
- 颗粒吞对于颗粒强化金属矩阵复合材料至关重要.
- 在固化过程中,颗粒经常被前进的固体/液体接口推向.
- 二化物颗粒/矩阵复合材料 (TiB2p/Al) 是研究这些现象的一个模型系统.
研究的目的:
- 通过声波化来研究TiB2p/Al复合材料中的颗粒吞没情况.
- 了解由声波空洞化驱动的粒子吞没机制.
- 评估声波化对微观结构和机械性能的影响.
主要方法:
- 利用声波化来诱导在固体/液体界面附近的泡爆裂.
- 研究了由泡崩驱动的TiB2粒子的运动.
- 分析了微观结构的变化,特别是二次状树臂间距.
- 测量机械性能,包括工作硬化率和强度.
主要成果:
- 声波化显著增加了颗粒吞没的可能性.
- 气泡的爆破将TiB2粒子推向了固体/液体界面.
- 其次性树手臂间距从271.2微米减少到98.0微米.
- 经过处理的复合材料表现出更快的硬化率和更高的强度.
结论:
- 声波化是一种有效的方法,可以增强金属矩阵复合材料中的颗粒吞.
- 粒子吞和由声洞化引起的树精炼改善了机械性能.
- 这种技术为制造先进的粒子增强复合材料提供了一个有前途的途径.
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