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通过化粉末制备网络Ti-N/Ti复合材料的研究

Ziyang Xiu¹, Boyu Ju¹, Junhai Zhan²

¹State Key Laboratory of Advanced Welding and Jointing, Harbin Institute of Technology, Harbin 150001, China.

Materials (Basel, Switzerland)

|August 12, 2023

概括

在 (Ti) 复合材料中通过in-situ化创建一个相互连接的化 (TiN) 网络,可以显著提高机械性能. 这种方法克服了钢筋聚合的问题,从而获得了更高的强度和硬度.

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
纳米技术纳米技术

背景情况:

实现统一的增强分散对于增强复合材料性能至关重要.
传统的方法,如机械球磨,往往会导致增强颗粒的聚合,限制它们的有效性.
在现场自成长的方法提供了一个有希望的方法来创建相互连接的增强网络,以提高材料性能.

研究的目的:

研究使用现场化方法制备网络TiN/Ti复合材料的方法.
将现场合成的TiN/Ti复合材料的微观结构和性能与通过机械球磨加工制成的复合材料进行比较.
分析连接的TiN网络结构对矩阵复合材料的机械性能的影响.

主要方法:

通过现场化在 (Ti) 粉表面上形成化 (TiN) 外.
化Ti粉末的烧结以形成网状TiN/Ti复合材料.
使用机械滚球削制备对照TiN/Ti复合材料进行比较.

主要成果:

在现场化过程中,粉上形成了一个均的TiN层 (5-7μm),在烧结复合材料中形成一个连接的TiN网络.
机械球磨导致TiN颗粒涂层和聚合,导致不连续的结构.
与对照组相比,通过现场化制备的TiN/Ti复合材料表现出明显更高的硬度 (685.7 HV) 和压力强度 (1468.5 MPa).

结论:

在现场化方法有效地在TiN/Ti复合材料中创建一个连接的TiN网络结构.
连接的TiN网络结构显著提高了矩阵复合材料的机械性能 (硬度,压力强度,可塑性).
本研究为设计具有增强性能的网络结构增强矩阵复合材料提供了理论指导.

关键词:

Ti矩阵复合材料的 Ti矩阵复合材料一个小小的天气.机械性能机械性能机械性能网络复合组件网络复合组件

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