浅析铝/金刚石复合材料热导率研究

Study on Thermal Conductivity of Aluminum/Diamond Composites

铝/金刚石复合材料受金刚石粒度、体积分数和界面性能直接影响材料热导率变化,大量学者通过原材料改性处理促进铝/金刚石界面结合,优化制备工艺方法改善材料热导率更接近理论值。本文基于对铝基复合材料制备工艺和微观界面的认识,综述如何改善铝/金刚石界面热导优化复合材料热导率,主要通过原料配方和改性、材料制备工艺等方法优化界面热导,使复合材料尽可能达到理论预测模型,同时分析了铝/金刚石在散热领域的应用前景。

The thermal conductivity of alumi-num/diamond composites is directly affected by the particle size, volume fraction and interface properties of diamond. A large number of scholars have promoted the interface bonding of alumi-num/diamond through the modification of raw materials, and optimized the preparation process to improve the thermal conductivity of materials closer to the theoretical value. Based on the under-standing of the preparation process and micro interface of aluminum matrix composites, this paper reviews how to improve the thermal conductivity of aluminum/diamond interface to optimize the thermal conductivity of composites, mainly through the formulation and modification of raw mate-rials, material preparation process and other methods to optimize the thermal conductivity of the interface, so that the composites can reach the theoretical prediction model as much as possible. At the same time, the application prospect of aluminum/diamond in the field of heat dissipation is an-alyzed.