Kinetic Research of Oxidation Induced Crack Healing of Engineering Ceramics (Ⅲ) Model Testing and Revising: The Kinetic Research of Al2O3-SiC W Composite

doi:10.3724/SP.J.1077.2006.00696

Abstract

Abstract: Oxidation reaction happened when Al₂O₃-SiC W composite heated at high temperature. The reaction producer moved to the crack area which induced crack healing. The kinetic analysis of crack healing of Al₂O₃-SiC W composite shows that: the velocity of crack healing can be showed as: - Cv/t=(2πC²_v0·ΔP+F)/(2πB₀C_v)·1/2·(k/t)^1/2, and the strength recovery can be expressed by the following formula: σ_f/σ_f0=[1-(2πC²_v0·ΔP+F)/(πB₀C²_v0)·k^1/2·t^1/2]^-1/4. Compared with Al₂O₃-TiC P composite, the filling coefficient F was added. The physical meaning of F coefficient is the area equivalent except the crack area. For Al2O3-SiC W composite, F is related to the whisker bridge, whisker emerge, and the area on which reaction producer can follow and fill in the crack. When heated at 1200℃, F is about 9.94\times10^-8 m².

Key words: crack healing, strength, velocity of healing, oxidiation reaction

CLC Number:

TQ174

Lü Jun,ZHENG Zhi-Xian,WU Yu-Cheng,JIN Zhi-Hao. Kinetic Research of Oxidation Induced Crack Healing of Engineering Ceramics (Ⅲ) Model Testing and Revising: The Kinetic Research of Al₂O₃-SiC W Composite[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2006.00696.

[1]	LI Guangyu, YUE Yifan, WANG Bo, ZHANG Chengyu, SUO Tao, LI Yulong. Damage of 2D-SiC/SiC Composites under Projectile Impact and Tensile Properties after Impact [J]. Journal of Inorganic Materials, 2024, 39(5): 494-500.
[2]	SHEN Bin, ZHANG Xu, XIONG Huai, LI Haiyuan, XIE Xinglong. Preparation and Optical Properties of Sol-Gel SiO₂ Antireflective Films [J]. Journal of Inorganic Materials, 2024, 39(5): 525-530.
[3]	GUAN Haoyang, ZHANG Li, JING Kaikai, SHI Weigang, WANG Jing, LI Mei, LIU Yongsheng, ZHANG Chengyu. Interfacial Mechanical Properties of the Domestic 3rd Generation 2.5D SiC_f/SiC Composite [J]. Journal of Inorganic Materials, 2024, 39(3): 259-266.
[4]	WU Jun, XU Peifei, JING Rui, ZHANG Dahai, FEI Qingguo. Experimental Study on Low-velocity Impact and Residual Strength of SiC/SiC Composite Laminates [J]. Journal of Inorganic Materials, 2024, 39(1): 51-60.
[5]	JIN Sai, LIU Xiaogen, QI Shuang, ZHAO Runchang, LI Zhijun. Fused Silica Glass: Laser-induced Damage on Bending Strength Weakening and Safety Design [J]. Journal of Inorganic Materials, 2023, 38(6): 671-677.
[6]	WU Shuang, GOU Yanzi, WANG Yongshou, SONG Quzhi, ZHANG Qingyu, WANG Yingde. Effect of Heat Treatment on Composition, Microstructure and Mechanical Property of Domestic KD-SA SiC Fibers [J]. Journal of Inorganic Materials, 2023, 38(5): 569-576.
[7]	HUA Siheng, YANG Dongwang, TANG Hao, YUAN Xiong, ZHAN Ruoyu, XU Zhuoming, LYU Jianan, XIAO Yani, YAN Yonggao, TANG Xinfeng. Effect of Surface Treatment of n-type Bi₂Te₃-based Materials on the Properties of Thermoelectric Units [J]. Journal of Inorganic Materials, 2023, 38(2): 163-169.
[8]	XIE Bing, CAI Jinxia, WANG Tongtong, LIU Zhiyong, JIANG Shenglin, ZHANG Haibo. Research Progress of Polymer-based Multilayer Composite Dielectrics with High Energy Storage Density [J]. Journal of Inorganic Materials, 2023, 38(2): 137-147.
[9]	LI Haiyan, KUANG Fenghua, WU Haolong, LIU Xiaogen, BAO Yiwang, WAN Detian. Temperature Dependence of Residual Tensile Stresses and Its Influences on Crack Propagation Behaviour [J]. Journal of Inorganic Materials, 2023, 38(11): 1265-1270.
[10]	YANG Yanguo, REN Haishen, HE Daihua, LIN Huixing. Effect of Cation Field Strength on Structure and High-temperature Properties of BaO-SiO₂-Ln₂O₃ Glass-ceramic [J]. Journal of Inorganic Materials, 2023, 38(10): 1207-1215.
[11]	LI Haiyan, HAO Hongjian, TIAN Yuan, WANG Changan, BAO Yiwang, WAN Detian. Effects of Residual Stresses on Strength and Crack Resistance in ZrO₂ Ceramics with Alumina Coating [J]. Journal of Inorganic Materials, 2022, 37(4): 467-472.
[12]	LI Meng, HUANG Hailu, WU Jiamin, LIU Chunlei, WU Yaru, ZHANG Jingxian, SHI Yusheng. Effect of Solid Loading of Slurry on Properties of Si₃N₄ Ceramics Formed by Digital Light Processing [J]. Journal of Inorganic Materials, 2022, 37(3): 310-316.
[13]	HAO Hongjian, LI Haiyan, WAN Detian, BAO Yiwang, LI Yueming. Enhanced Flexural Strength and Thermal Shock Resistance of Alumina Ceramics by Mullite/Alumina Pre-stressed Coating [J]. Journal of Inorganic Materials, 2022, 37(12): 1295-1301.
[14]	WANG Weide, CHEN Huanbei, LI Shishuai, YAO Dongxu, ZUO Kaihui, ZENG Yuping. Preparation of Silicon Nitride with High Thermal Conductivity and High Flexural Strength Using YbH₂-MgO as Sintering Additive [J]. Journal of Inorganic Materials, 2021, 36(9): 959-966.
[15]	LIANG Hanqin, YIN Jinwei, ZUO Kaihui, XIA Yongfeng, YAO Dongxu, ZENG Yuping. Mechanical and Dielectric Properties of Hot-pressed Si₃N₄ Ceramics with BaTiO₃ Addition [J]. Journal of Inorganic Materials, 2021, 36(5): 535-540.

Kinetic Research of Oxidation Induced Crack Healing of Engineering Ceramics (Ⅲ) Model Testing and Revising: The Kinetic Research of Al₂O₃-SiC W Composite

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments