Oxidation Behaviors of the Pressureless Sintered ZrB2-SiC Composites

doi:10.3724/SP.J.1077.2009.00631

Abstract

Abstract:

The pressureless sintering process of ZrB₂-SiC composite ceramics was studied. The ceramic samples was prepared by using sol-gel synthesized ultra-fine ZrB₂ powders as sources and different contents of Mo and/or B₄C as sintering aids. The static oxidation behaviors of the sintered ZrB₂-20wt%SiC composite ceramics using 4wt%Mo and 4wt%Mo-2wt%B₄C additives were systemically analyzed. The results show that the composite ceramics oxidized quickly with visible ZrO₂ particles on the surface above 1300℃/30min with pure Mo additive. While Mo-B₄C additive is added, the protective liquid layer appears at 1300℃ and becomes thicker and uniform with the temperature rising. The composite ceramics present good oxidation resistance of which the flexural strength retains 86% of the value in room temperature after oxidiation at 1500℃ for 30min.

Key words: ultra-high temperature ceramics, pressureless sintering, oxidation resistance

CLC Number:

TB335

YAN Yong-Jie,ZHANG Hui,HUANG Zheng-Ren,LIU Xue-Jian. Oxidation Behaviors of the Pressureless Sintered ZrB₂-SiC Composites[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2009.00631.

[1]	MA Xinchao, ZHI Qing, LI Wei, CHEN Mao, WANG Hailong, ZHANG Rui, ZHANG Fan, FAN Bingbing. High-temperature Oxidation Mechanism and Electromagnetic Wave Absorption Properties of Fe₂AlB₂ [J]. Journal of Inorganic Materials, 2026, 41(1): 45-54.
[2]	FAN Wenkai, YANG Xiao, LI Honghua, LI Yong, LI Jiangtao. Pressureless Sintering of (Y_0.2Gd_0.2Er_0.2Yb_0.2Lu_0.2)₂Zr₂O₇ High-entropy Ceramic and Its High Temperature CMAS Corrosion Resistance [J]. Journal of Inorganic Materials, 2025, 40(2): 159-167.
[3]	WANG Wenting, XU Jingjun, MA Ke, LI Meishuan, LI Xingchao, LI Tongqi. Oxidation Behavior at 1000-1300 ℃ in air of Ti₂AlC-20TiB₂ Synthesized by in-situ Reaction/Hot Pressing [J]. Journal of Inorganic Materials, 2025, 40(1): 31-38.
[4]	CAI Feiyan, NI Dewei, DONG Shaoming. Research Progress of High-entropy Carbide Ultra-high Temperature Ceramics [J]. Journal of Inorganic Materials, 2024, 39(6): 591-608.
[5]	LIU Guoang, WANG Hailong, FANG Cheng, HUANG Feilong, YANG Huan. Effect of B₄C Content on Mechanical Properties and Oxidation Resistance of (Ti_0.25Zr_0.25Hf_0.25Ta_0.25)B₂-B₄C Ceramics [J]. Journal of Inorganic Materials, 2024, 39(6): 697-706.
[6]	ZHENG Bin, KANG Kai, ZHANG Qing, YE Fang, XIE Jing, JIA Yan, SUN Guodong, CHENG Laifei. Preparation and Thermal Stability of Ti₃SiC₂ Ceramics by Polymer Derived Ceramics Method [J]. Journal of Inorganic Materials, 2024, 39(6): 733-740.
[7]	ZHOU Yunkai, DIAO Yaqi, WANG Minglei, ZHANG Yanhui, WANG Limin. First-principles Calculation Study of the Oxidation Resistance of PANI Modified Ti₃C₂(OH)₂ [J]. Journal of Inorganic Materials, 2024, 39(10): 1151-1158.
[8]	JIN Xihai, DONG Manjiang, KAN Yanmei, LIANG Bo, DONG Shaoming. Fabrication of Transparent AlON by Gel Casting and Pressureless Sintering [J]. Journal of Inorganic Materials, 2023, 38(2): 193-198.
[9]	ZHANG Yachen, MENG Jia, CAI Kun, SHENG Xiaochen, LE Jun, SONG Lixin. Bending Failure Mechanism Study of Si-Cr-Ti High Temperature Oxidation Resistance Coating via Acoustic Emission Technique [J]. Journal of Inorganic Materials, 2021, 36(11): 1185-1192.
[10]	SHI Jian-Jun, ZHANG Zong-Bo, FENG Zhi-Hai, ZHANG Da-Hai, WANG Yun, XU Cai-Hong. Modification of Oxidation Resistance for Low Density Carbon-bonded Carbon Fiber (CBCF) Composite [J]. Journal of Inorganic Materials, 2018, 33(7): 728-734.
[11]	DUAN Yu-Sen, ZHANG Jing-Xian, LI Xiao-Guang, HUANG Ming-Ming, SHI Ying, XIE Jian-Jun, JIANG Dong-Liang. Rare Earth Oxides on Property of Pressureless Sintered Si₃N₄ Ceramics [J]. Journal of Inorganic Materials, 2017, 32(12): 1275-1279.
[12]	CAO Xi-Wen, LUO Ling-Hong, XU Xu, CHENG Liang, SHI Ji-Jun, YU Hui. Surface Modification of SUS430 Interconnect with MnCo₂O₄ Coating [J]. Journal of Inorganic Materials, 2016, 31(1): 63-68.
[13]	LEI Zhuo-Yan, WANG Zhi, FAN Heng-Bing, MA Wen-Bin, CHEN Jian, WANG Xu. Effect of B₂O₃ Doping and Phosphate Impregnation on Oxidation Resistance and Mechanical Properties of Mesocarbon Microbead Composites [J]. Journal of Inorganic Materials, 2015, 30(7): 769-773.
[14]	CAO Xiao-Zhou, WANG Chao, XUE Xiang-Xin, YANG He. Preparation of Tungsten Boride Ceramic by Pressureless Sintering [J]. Journal of Inorganic Materials, 2014, 29(5): 498-502.
[15]	ZHOU Wei, XIAO Peng, LI Yang, LUO Heng, HONG Wen. Microwave Absorbing Properties of Carbon Fibers Modified with BN/SiC Composite Coatings [J]. Journal of Inorganic Materials, 2014, 29(10): 1093-1098.

Oxidation Behaviors of the Pressureless Sintered ZrB₂-SiC Composites

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments