Thermal shock of alumina by compressed air cooling

被引：13

作者：

Hugot, F.

Glandus, J. C.

机构：

[1] Univ Bordeaux 1, Lab Rheol Bois Bordeaux, UMR 5103, INRA,CNRS, F-33612 Cestas, France

[2] ENSCI, F-87065 Limoges, France

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2007年 / 27卷 / 04期

关键词：

Al2O3; thermal shock resistance; failure analysis; exchange coefficient; CRACK-PROPAGATION; STRESS RESISTANCE; BRITTLE CERAMICS;

D O I：

10.1016/j.jeurceramsoc.2006.06.012

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Alumina samples has been submitted to mild thermal shocks by quenching in a compressed air flow and the critical temperature difference has been determined for increasing thermal shock severities. Then these critical shocks have been numerically simulated by varying the superficial heat exchange coefficient value until the maximal tensile stress reaches the material strength. The combination of experimental and numerical approaches leads to indirect estimate of the heat exchange coefficient values during the tests. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1919 / 1925

页数：7

共 17 条

[1] THERMAL-SHOCK CRACK PATTERNS EXPLAINED BY SINGLE AND MULTIPLE CRACK-PROPAGATION [J].