Joining particulate and whisker ceramic composites by plastic flow

被引：19

作者：

Chen, N

Gutierrez-Mora, F

Koritala, RE

Goretta, KC

Routbort, JL

Pan, JS

机构：

[1] Argonne Natl Lab, Energy Technol Div, Argonne, IL 60439 USA

[2] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

COMPOSITE STRUCTURES | 2002年 / 57卷 / 1-4期

关键词：

ceramics; composites; joints; plastic deformation;

D O I：

10.1016/S0263-8223(02)00077-6

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Joining of bulk ceramics by plastic flow has been demonstrated for several fine-grained ceramics. We have joined, for example, submicrometer 3 mol% Y2O3 partially stabilized ZrO2 (YSZ) and YSZ-toughened Al2O3, The interlayers in these cases consisted of dense, submicrometer-grain-sized pieces of ceramics that have been shown to exhibit superplastic flow, We have extended the joining work to include incorporation of 15 vol.% SiC or 20 vol.% TiC whiskers within the bond layer. Unlike YSZ/Al2O3, because of the presence of the whiskers, YSZ/Al2O3/SiC and YSZ/Al2O3/TiC do not deform superplastic ally. However, virtually perfect YSZ/Al2O3 joints with and without whiskers could be made by compressing at 1300-1350 degreesC and stresses of < 20 MPa. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：135 / 139

页数：5

共 18 条

[1] Joining of alumina ceramics using nanocrystalline tape cast interlayer [J].