Crack-healing ability and strength recovery of different hot-pressed TZ3Y20A-SiC ceramics by heat treatment in air

被引:13
作者
Zhang, Xiu-Ping [1 ]
Ouyang, Jia-Hu [1 ]
Liu, Zhan-Guo [1 ]
Wang, Yu-Jin [1 ]
Wang, Ya-Ming [1 ]
Zhou, Yu [1 ]
机构
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
基金
中国国家自然科学基金;
关键词
Crack-healing; Heat treatment; Ceramic; Strength recovery; HIGH-TEMPERATURE STRENGTH; STRUCTURAL INTEGRITY; SI3N4/SIC COMPOSITE; FATIGUE-STRENGTH; BEHAVIOR; OXIDATION; STRESS; METHODOLOGY; GUARANTEE;
D O I
10.1016/j.matdes.2014.11.053
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Crack-healing ability and strength recovery of different ZrO2(Y2O3)-Al2O3-SiC (TZ3Y20A-SiC) ceramics have been investigated by tailoring heat treatment temperature, heat treatment time, SiC content and crack size. Heat treatment in air enhances distinctly the flexural strength of TZ3Y20A-SiC ceramics. A complete crack-healing of TZ3Y20A-10 vol%SiC ceramic can be realized by optional heat treatments at 1073 K for 30 h, 1273 K for 10 h or 1373 K for 5 h, respectively. With increasing the content of nanosize SiC particles from 10 to 20 vol%, the crack-healing process of TZ3Y20A-SiC ceramics speeds up at identical temperature levels. The pre-existing cracks with a width up to 0.45 mu m are healed completely under the optimum heat treatment conditions, and the flexural strengths of crack-healed TZ3Y20A-SiC ceramics are completely recovered to the value of smooth specimens. Crack closure and rebonding of crack wall due to the formation of SiO2 glassy phase by oxidation reaction between SiC and the oxidizing atmosphere are dominant healing mechanisms in TZ3Y20A-SiC ceramics. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:324 / 329
页数:6
相关论文
共 30 条
[1]   Crack-healing ability of structural ceramics and a new methodology to guarantee the structural integrity using the ability and proof-test [J].
Ando, K ;
Furusawa, K ;
Takahashi, K ;
Sato, S .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2005, 25 (05) :549-558
[2]   Crack healing behaviour and high-temperature strength of mullite/SiC composite ceramics [J].
Ando, K ;
Chu, MC ;
Tsuji, K ;
Hirasawa, T ;
Kobayashi, Y ;
Sato, S .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2002, 22 (08) :1313-1319
[3]   Crack-healing behavior of Si3N4/SiC ceramics under cyclic stress and resultant fatigue strength at the healing temperature [J].
Ando, K ;
Takahashi, K ;
Nakayama, S ;
Saito, S .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2002, 85 (09) :2268-2272
[4]  
Bamba N, 1997, J EUR CERAM SOC, P0955
[5]   Effects of high-temperature annealing on the microstructure and properties of C/SiC-ZrB2 composites [J].
Chen, Si'an ;
Hu, Haifeng ;
Zhang, Yudi ;
Zhang, Changrui ;
Wang, Qikun .
MATERIALS & DESIGN, 2014, 53 :791-796
[6]   Crack healing in silicon carbide [J].
Chu, MC ;
Cho, SJ ;
Lee, YC ;
Park, HM ;
Yoon, DY .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2004, 87 (03) :490-492
[7]   Effects of random particle dispersion and size on the indentation behavior of SiC particle reinforced metal matrix composites [J].
Ekici, Recep ;
Apalak, M. Kemal ;
Yildirim, Mustafa ;
Nair, Fehmi .
MATERIALS & DESIGN, 2010, 31 (06) :2818-2833
[8]   Crack-healing behavior of ZrO2/SiC composite ceramics and strength properties of crack-healing specimens [J].
Houjou, Keiji ;
Takahashi, Koji .
INTERNATIONAL JOURNAL OF STRUCTURAL INTEGRITY, 2012, 3 (01) :41-52
[9]   Crack-healing behaviour of ZrO2/SiC composite ceramics [J].
Houjou, Keiji ;
Ando, Kotoji ;
Takahashi, Koji .
INTERNATIONAL JOURNAL OF STRUCTURAL INTEGRITY, 2010, 1 (01) :73-84
[10]   Crack-healing behavior of liquid-phase-sintered silicon carbide ceramics [J].
Kim, YW ;
Ando, K ;
Chu, MC .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2003, 86 (03) :465-470