Study of Residual Stress and Surface Morphology Changes in Al2O3 Induced by Nd:YAG Laser Irradiation

被引：2

作者：

Yeo, Sunmog ^{[1
]}

Hong, Sung-Ki ^{[1
]}

Lee, Sung-Jun ^{[2
]}

Lim, Changhwan ^{[1
]}

Park, Jae-Won ^{[1
]}

机构：

[1] PEFP, KAERI, Taejon, South Korea

[2] Korea Res Inst Stand & Sci, Div Phys Metrol, Taejon, South Korea

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2012年 / 21卷 / 01期

关键词：

alumina; Nd:YAG laser; residual stress; surface morphology; THIN-FILMS; STRENGTH;

D O I：

10.1007/s11665-010-9788-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the residual stress and surface morphology changes in alumina plates by the irradiation of a Q-switched Nd:YAG laser were investigated. The results of x-ray diffraction using the sin(2)psi technique show that laser irradiation induces tensile residual stresses on the surface of the plates, which increase with the increasing energy density of the laser beam. Residual stress and surface morphology are sensitive to the irradiation conditions. The surface morphology of the plates systematically changed with the laser energy density and the presence of an aluminum foil or water on the plates. The physical reasons for these changes are discussed in this article.

引用

页码：137 / 142

页数：6

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[Anonymous], MACH TOOLS MANUFACT

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[Anonymous], SCRIPTA MAT

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