Processing and properties of ZrB2-SiC composites obtained by aqueous tape casting and hot pressing

被引：39

作者：

Lue, Zhihui ^{[1
,2
]}

Jiang, Dongliang ^{[1
]}

Zhang, Jingxian ^{[1
]}

Lin, Qingling ^{[1
]}

机构：

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

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2011年 / 37卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Suspensions; Tape casting; Mechanical properties; ZrB2-SiC; Microstructure; HIGH TEMPERATURE CERAMICS; DIBORIDE-SILICON CARBIDE; MECHANICAL-PROPERTIES; SLIP ADDITIVES; TECHNOLOGY; MICROSTRUCTURE;

D O I：

10.1016/j.ceramint.2010.08.044

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：

ZrB2-SiC composites with different SiC content were prepared through aqueous tape casting and hot pressing. The influences of dispersant, SiC content and binder content on the rheological properties of slurries were investigated and the conditions for preparing stable ZrB2-SiC suspensions were optimized. After tape casting and drying, the green ZrB2-SiC tapes showed good flexibility, lubricious surface and homogeneous microstructuie. The ZrB2 ceramics could be densified to 97.2% after hot-pressing, while the ZrB2 containing 20 and 30 vol% SiC ceramics were nearly fully densified (>99%). The sintered ZrB2-20 vol% SiC ceramic had improved mechanical properties compared with ZrB2 ceramic. Further increase in SiC content resulted in lower flexural strength and fracture toughness. SEM and TEM showed a fine microstructure with a clear grain boundary. The fracture mode changed from intragranular type for ZrB2 to both intragranular and intergranular type for ZrB2-SiC composites. (C) 2010 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：293 / 301

页数：9

共 32 条

[1]

Bitterlich B., 2000, P EUROMAT 99, V12, P167

[2] High-strength zirconium diboride-based ceramics [J].

Chamberlain, AL ;

Fahrenholtz, WG ;

Hilmas, GE ;

Ellerby, DT .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2004, 87 (06) :1170-1172

[3] Aqueous gel-casting of hydroxyapatite [J].

Chen, Biqin ;

Zhang, Zhaoquan ;

Zhang, Jingxian ;

Dong, Manjiang ;

Jiang, Dongliang .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 435 :198-203

[4] A SIMPLE WAY TO MAKE TOUGH CERAMICS [J].

CLEGG, WJ ;

KENDALL, K ;

ALFORD, NM ;

BUTTON, TW ;

BIRCHALL, JD .

NATURE, 1990, 347 (6292) :455-457

[5]

Cutler R.A., 1991, CERAMICS GLASSES ENG, V4, P787

[6] Densification of ZrB2-based composites and their mechanical and physical properties: A review [J].

Guo, Shu-Qi .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2009, 29 (06) :995-1011

[7] Oxidation behavior of zirconium diboride-silicon carbide at 1800°C [J].

Han, Jiecai ;

Hu, Ping ;

Zhang, Xinghong ;

Meng, Songhe .

SCRIPTA MATERIALIA, 2007, 57 (09) :825-828

[8] Improved processing, and oxidation-resistance of ZrB2 ultra-high temperature ceramics containing SiC nanodispersoids [J].

Hwang, Sung S. ;

Vasiliev, Alexander L. ;

Padture, Nitin P. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 464 (1-2) :216-224

[9] POWDER PROCESSING SCIENCE AND TECHNOLOGY FOR INCREASED RELIABILITY [J].

LANGE, FF .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1989, 72 (01) :3-15

[10] Evaluation of ultra-high temperature ceramics for aeropropulsion use [J].

Levine, SR ;

Opila, EJ ;

Halbig, MC ;

Kiser, JD ;

Singh, M ;

Salem, JA .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2002, 22 (14-15) :2757-2767

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