Oxidation resistance and strength retention of ZrB2-SiC ceramics

被引：101

作者：

Guo, Wei-Ming ^{[1
]}

Zhang, Guo-Jun ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2010年 / 30卷 / 11期

基金：

中国国家自然科学基金;

关键词：

B Microstructure; C Strength; ZrB2-SiC; Oxidation; Kinetics; DIBORIDE-SILICON-CARBIDE; ZIRCONIUM; COMPOSITES; CONVECTION; TRANSPORT; BEHAVIOR; KINETICS;

D O I：

10.1016/j.jeurceramsoc.2010.01.028

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：

Oxidation behavior and effect of oxidation on the room-temperature flexural strength were Investigated for ZrB2-10 vol% SiC (ZB10S) and ZrB2-30 vol% SiC (ZB30S) in air at 1500 degrees C with times ranging from 0.5 h to 10 h The oxide scale of both ZB10S and ZB30S was composed of an outer glassy layer and an inner extended SIC-depleted layer The changes in weight gain, glass layer thickness, and extended SIC-depleted layer thickness with oxidation were measured Analysis suggested that the extended SIC-depleted layer was most indicative for evaluating the oxidation resistance Compared to the ZB10S, the Improved oxidation resistance in ZB30S was attributed to the viscosity increase of glassy layer and the lower number of ZrO2 inclusions in the glassy layer. Because of the healing of surface flaws by the glassy layer, the strength increased significantly by similar to 110% for ZB10S and by similar to 130% for ZB30S after oxidation for 0.5 h. (C) 2010 Elsevier Ltd All rights reserved

引用

页码：2387 / 2395

页数：9

共 20 条

[1] Oxidation Behavior of Zirconium Diboride Silicon Carbide Produced by the Spark Plasma Sintering Method [J].

Carney, Carmen M. ;

Mogilvesky, Pavel ;

Parthasarathy, Triplicane A. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (09) :2046-2052

[2] Refractory diborides of zirconium and hafnium [J].

Fahrenholtz, William G. ;

Hilmas, Gregory E. ;

Talmy, Inna G. ;

Zaykoski, James A. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (05) :1347-1364

[3] Thermodynamic analysis of ZrB2-SiC oxidation:: Formation of a SiC-depleted region [J].

Fahrenholtz, William G. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (01) :143-148

[4] Effect of thermal exposure on strength of ZrB2-based composites with nano-sized SiC particles [J].

Guo, Shu-Qi ;

Yang, Jenn-Ming ;

Tanaka, Hidehiko ;

Kagawa, Yutaka .

COMPOSITES SCIENCE AND TECHNOLOGY, 2008, 68 (14) :3033-3040

[5] Effect of Si and Zr additions on oxidation resistance of hot-pressed ZrB2-SiC composites with polycarbosilane as a precursor at 1500 °C [J].

Guo, Wei-Ming ;

Zhou, Xiao-Jun ;

Zhang, Guo-Jun ;

Kan, Yan-Mei ;

Li, Yao-Gang ;

Wang, Pei-Ling .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 471 (1-2) :153-156

[6] Zirconia transport by liquid convection during oxidation of zirconium diboride-silicon carbide [J].

Karlsdottir, Sigrun N. ;

Halloran, John W. ;

Grundy, Anthony Nicholas .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2008, 91 (01) :272-277

[7] Convection patterns in liquid oxide films on ZrB2-SiC composites oxidized at a high temperature [J].

Karlsdottir, Sigrun N. ;

Halloran, John W. ;

Henderson, Carl E. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (09) :2863-2867

[8] Oxidation of ZrB2-SiC: Influence of SiC Content on Solid and Liquid Oxide Phase Formation [J].

Karlsdottir, Sigrun N. ;

Halloran, John W. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (02) :481-486

[9]

Kim HW, 1999, J AM CERAM SOC, V82, P1601

[10] Thermochemical and mechanical stabilities of the oxide scale of ZrB2+SiC and oxygen transport mechanisms [J].

Li, Ju ;

Lenosky, Thomas J. ;

Forst, Clemens J. ;

Yip, Sidney .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2008, 91 (05) :1475-1480

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