The Research of Surface Residual Stress about Glass Ceramics
We have researched the residual stress in super-smooth glass ceramics using nano-indentation technology, according to the characteristic that the residual stress in the process of pressure is sensitive to the pileup around the indenter, we can determine the changing area, then combine this with the elasto-plastic contact theory, thus the residual stress calculation formula is obtained.By the continuous strain obtained by a spherical indenter and the research on the yield stress and stress-strain curves of microcrystalline glass through spherical indentation experiments, we can get the rule which can tell us how the residual stress of the microcrystalline glass changes with the depth from surface.This research helps to improve the processing quality as well as the performance of the super-smooth surfaced microcrystalline glass, obviously it has a wide application prospect.
Glass ceramics Yield stress Stress strain Residual stress
Jing He Wang Kui Wang Xun Wang Wei Song Xiao Li Song Shun Zeng Li
Center for precision engineering of Harbin Institute of Technology Harbin Helongjiang 150001 Center for Xian flight automatic control Xian Shanxi 710065
国际会议
上海
英文
2014-2018
2012-10-19(万方平台首次上网日期,不代表论文的发表时间)