激光加热在Al_2O_3/Ti系梯度功能材料制备过程中的作用及机理

Action and mechanism of laser spot heating in course of fabricating Al 2O 3 Ti functional gradient material

梯度功能材料是一种界面连续化的新型复合材料，本文研究了激光加热在合成Ａｌ２Ｏ３／Ｔｉ系梯度功能材料过程中的作用和机理，同时用激光大光斑加热方法制备出直径１１ｍｍ厚度３ｍｍ完整的ＦＧＭ试样并加以分析。

Functional gradient material (FGM) is a new of boundary continuous composite material.In this paper,research shows that the laser spot heating play a very important role in fabricating Al 2O 3 Ti functional gradient material.In our experiments,we utilize the thermal couples,which were installed in specimens,to successfully measure the gradient distribution of heating temperature for laser spot heating and analyze the action of laser spot heating in the course of fabricating FGM. At the same time,Al 2O 3 Ti FGM,11mm in diameter and 3mm thick,has been fabricated.