First,glass and ceramic workpieces whose surface roughness had to been expressed by nanometer,is manufactured.The residual stress of workpieces is tested by using Xray diffraction method.

• 首先,加工出表面粗糙度达到纳米级的玻璃和陶瓷两个试件,采用X射线衍射测试原理测试表层残余应力。