An investigation on the transformations in grinding affected layer of ZTC

被引：16

作者：

Wang, XB ^{[1
]}

Shi, HM ^{[1
]}

Ren, JX ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 2000年 / 40卷 / 02期

关键词：

ZTC; grinding; transformation;

D O I：

10.1016/S0890-6955(99)00064-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A complex transformation may be induced in the grinding affected layer of zirconia-toughened ceramics (ZTC). To explore the characteristics of transformation such as direction, magnitude and depth-dependent distribution under the ground surface of ZTC, Mg-PSZ, Y-PSZ and Si3N4+ZrO2 etc., four kinds of ceramics have been ground using an orthogonal design test. By means of grinding forces, XRD analysis and SEM observation the main causes and mechanism of transformation are discussed for the conventional grinding processes. It is shown that: the ZTC phase would change either from t to m or from m to t, depending on the composition and heat-treatment of the ceramic materials: Transformation due to grinding is noticeable and influenced by the grinding parameters (V-s, a(p), V-w,) strongly; The thickness of transformation layer is larger than the depth of wheel cut. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：165 / 172

页数：8