Oxidation behavior and phase transition of ZrB2-SiCw-ZrO2f ceramic

被引：25

作者：

Lin Jia ^{[1
]}

Zhang Xinghong ^{[1
]}

Han Jiecai ^{[1
]}

Han Wenbo ^{[1
]}

Zhao Wenguang ^{[2
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Adv Composites Special, Harbin 150001, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

来源：

CORROSION SCIENCE | 2014年 / 78卷

关键词：

Ceramic matrix composites; TEM; XRD; XPS; Oxidation; ARC-MELTED ZRO2-2MOL-PERCENT-Y2O3; MONOCLINIC TRANSFORMATION; ZIRCONIA ZRO2; MODEL; ZRB2;

D O I：

10.1016/j.corsci.2013.08.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The oxidation behavior and phase transition of ZrB2-SiCw-ZrO2f ceramic had been investigated by in situ high-temperature XRD, XPS, SEM, EDS and TEM measurements. The initial oxidation temperature of most ZrB2 was 1000 degrees C and no significant oxidation of SiC was found up to 1200 degrees C. The oxidation products formed at lower temperatures would penetrate into the pores and flaws on the surface, which was beneficial to crack healing. In order to improve the oxidation resistance of this system, it should be focused on decreasing the oxygen diffusivity and the volume expansion caused by phase transition. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：13 / 21

页数：9

共 32 条

[1] MARTENSITIC PHASE-TRANSFORMATION IN ZIRCONIA (ZRO2) .1. METALLOGRAPHIC EVIDENCE [J].