More effective crack self-healing capability of SiCf/SiC-B4C with Al2O3modified under wet environment

被引：19

作者：

Shan, Qingliang ^{[1
]}

Xue, Yudong ^{[2
]}

Hu, Jianbao ^{[2
]}

Xu, Qiankun ^{[1
]}

Ma, Qian ^{[1
]}

Zeng, Shenghui ^{[1
]}

Lian, Jiawei ^{[1
]}

Wang, Yewei ^{[1
]}

Shui, Anze ^{[1
]}

机构：

[1] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2020年 / 103卷 / 12期

基金：

中国国家自然科学基金;

关键词：

composites; cracks; oxidation; self-healing; DIFFERENT TENSILE BEHAVIORS; HIGH-TEMPERATURE OXIDATION; CERAMIC-MATRIX COMPOSITE; SICF-SIBC COMPOSITES; C/SIC COMPOSITES; CREEP-BEHAVIOR; ALN-SIC-TIB2; CERAMICS; OXYGEN ENVIRONMENT; DAMAGE MECHANISMS; ACOUSTIC-EMISSION;

D O I：

10.1111/jace.17371

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：

Aluminum oxide has been introduced into SiCf/(SiC + B4C) composites to improve the crack self-healing property in O-2/H2O atmosphere. The observation of the surface and interior morphologies of the oxidized composites reveal that Al(2)O(3)can lead to rapid self-healing of cracks, which will effectively block the oxidation of interior interphase and fiber. Further investigation reveals that Al(2)O(3)plays an important role in impeding the crystallization of SiO(2)and limiting the volatilization of B2O3. It is beneficial to form self-healing fluid glass phase and improve glass phase stability. Under these circumstances, the pre-crack can be healed more effectively, which is advantageous for composites to remain high strength retention rate.

引用

页码：7247 / 7258

页数：12

共 39 条

[1] MOLECULAR MECHANISMS FOR CORROSION OF SILICA AND SILICATE-GLASSES [J].

BUNKER, BC .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1994, 179 :300-308

[2] Creep behaviour of a SiC/Si-B-C composite with a self-healing multilayered matrix [J].

Carrère, P ;

Lamon, J .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2003, 23 (07) :1105-1114

[3] Structure and crystallization of B2O3-Al2O3-SiO2 glasses [J].

Cheng, Yin ;

Xiao, Hanning ;

Chen Shuguang ;

Tang, Bingzhong .

PHYSICA B-CONDENSED MATTER, 2009, 404 (8-11) :1230-1234

[4] Understanding of the creep behavior of SiCf-SiBC composites [J].

Darzens, S ;

Chermant, JL ;

Vicens, J ;

Sangleboeuf, JC .

SCRIPTA MATERIALIA, 2002, 47 (07) :433-439

[5] Understanding of the behaviour and the influence of oxidation during creep of SiCf-SiBC composites in air [J].

Farizy, G ;

Chermant, JL ;

Vicens, J ;

Sangleboeuf, JC .

ADVANCED ENGINEERING MATERIALS, 2005, 7 (06) :529-535

[6] SiCf-SiBC composites:: microstructural investigations of the as-received material and creep tested composites under an oxidative environment [J].

Farizy, G ;

Chermant, JL ;

Sangleboeuf, JC ;

Vicens, J .

JOURNAL OF MICROSCOPY, 2003, 210 :176-186

[7] Study of thermal stability of fumed silica based thermal insulating composites at high temperatures [J].

Feng, Jinpeng ;

Yan, Yongye ;

Chen, Deping ;

Ni, Wen ;

Yang, Jinlin ;

Ma, Shaojian ;

Mo, Wei .

COMPOSITES PART B-ENGINEERING, 2011, 42 (07) :1821-1825

[8]

Fox DS, 2000, J AM CERAM SOC, V83, P1761, DOI 10.1111/j.1151-2916.2000.tb01461.x

[9] Oxidation kinetics strength of Hi-NicalonTM-S SiC fiber after oxidation in dry and wet air [J].

Hay, Randall S. ;

Chater, Richard J. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2017, 100 (09) :4110-4130

[10] Microstructural evolution during the infiltration of boron carbide with molten silicon [J].

Hayun, Shmuel ;

Weizmann, Amir ;

Dariel, Moshe P. ;

Frage, Nahum .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2010, 30 (04) :1007-1014

← 1 2 3 4 →