Effect of Nano SiC Particles on the Microstructure of Al2O3 Ceramics

Abstract

Abstract: The hot-pressing temperature, matrix grain size, fracture mode and the distribution of SiC were studied to reveal the effect of SiC inclusions on the microstructure
of Al₂O₃. Al₂O₃-SiC composite powder was perpared by the precipitation method. Nano SiC particales were coated with Al₂O₃. After hot pressing,
most of nano SiC particles were randomly located in Al₂O₃ grains. SiC inclusions raised the hot～pressing temperature, decreased Al₂O₃ grain
size, and inhibited the abnormal grain growth of Al₂O₃. The intergranular fracture for Al₂O₃ was transformed to the intragranular fracture for Al₂O₃-SiC
nanocomposites because of the addition of SiC. All those microstructure changes would benefit the improvement of the mechanical properities of Al₂O₃.

Key words: alumina, nanocomposites, silicon carbide, microstructure

CLC Number:

TB323

WANG Hong-Zhi,GAO Lian,CHEN Hong-Guang,GUI Lin-Hua,GUO Jing-Kun. Effect of Nano SiC Particles on the Microstructure of Al₂O₃ Ceramics[J]. Journal of Inorganic Materials.

[1]	LIU Leimin, LUO Hongxin, HE Yumei, JIN Limin, LI Yongjie, LIU Jingwen, WEI Yuquan, SUN Anle, CHEN Zhongming, LIU Xuejian, YIN Jie, HUANG Zhengren. Performance of Silicon Carbide Mirrors for Advanced Light Source Devices [J]. Journal of Inorganic Materials, 2026, 41(6): 805-813.
[2]	ZHAO Tongtong, DAI Jixiang, SU Cheng, SHI Yan, SHA Jianjun. Microstructure and Ablation Resistance of C/C Composites Modified by Hf-Si-based Coating-matrix Integrated Structure Fabricated by Reactive Melt Infiltration [J]. Journal of Inorganic Materials, 2026, 41(5): 583-594.
[3]	CHENG Aopeng, WANG Yuewen, XU Wentao, LIU Quanwei, ZHANG Haitao, ZHOU Youfu. Fabrication of Graphene-reinforced Alumina Ceramic Composites via Adsorption-precipitation Self-assembly Combined with Spark Plasma Sintering [J]. Journal of Inorganic Materials, 2026, 41(4): 536-544.
[4]	JIANG Shengnan, ZHENG Zhong, HE Weiyi, LIU Tao, PAN Xiuhong, CHEN Kun, GUO Hui, GAO Pan, LIU Chunjun, LIU Xuechao. Preparation and Performance Optimization of Boron-gallium Co-doped Zinc Oxide Transparent Electrodes [J]. Journal of Inorganic Materials, 2026, 41(4): 479-485.
[5]	ZHENG Chen, WANG Xiangning, YUAN Henan, YANG Jiawei, LI Chuanjian, WANG Huadong. Mechanical Property Failure of Alumina Fiber Reinforced Silica Composite [J]. Journal of Inorganic Materials, 2026, 41(3): 331-339.
[6]	CAO Juan, WU Xishi, LIU Zehua, PEI Bingbing, HAN Jianshen, LIU Huan, YANG Yitian, WU Haibo, HUANG Zhengren. Influence of Grain Size on Weibull Distribution of Fracture Strength in Atmospheric-pressure Solid-phase Sintered SiC Ceramics [J]. Journal of Inorganic Materials, 2026, 41(2): 217-224.
[7]	YUAN Wang, HU Jianbao, ZHOU Liang, KAN Yanmei, ZHANG Xiangyu, DONG Shaoming. Effect of Argon Atmosphere Heat Treatment on Mechanical Properties and Microstructural Evolution of Shicolon-II SiC Fibers [J]. Journal of Inorganic Materials, 2026, 41(1): 119-128.
[8]	HAN Weiwei, HUANG Dong, LI Tingsong, LI Jiang. Sm:LuAG/Nd:LuAG Composite Laser Ceramics with Cladding Structure: Fabrication and Properties [J]. Journal of Inorganic Materials, 2026, 41(1): 113-118.
[9]	ZHONG Weimin, ZHAO Ke, WANG Kewei, LIU Dianguang, LIU Jinling, AN Linan. Effect of Oscillatory Pressure Amplitude on Microstructures and Wear Resistance of Tungsten Carbide [J]. Journal of Inorganic Materials, 2025, 40(9): 964-970.
[10]	WANG Lujie, ZHANG Yuxin, LI Tongyang, YU Yuan, REN Pengwei, WANG Jianzhang, TANG Huaguo, YAO Xiumin, HUANG Yihua, LIU Xuejian, QIAO Zhuhui. Corrosion and Wear Behavior of Silicon Carbide Ceramic in Deep-sea Service Environment [J]. Journal of Inorganic Materials, 2025, 40(7): 799-807.
[11]	LI Ziwei, GONG Weilu, CUI Haifeng, YE Li, HAN Weijian, ZHAO Tong. (Zr, Hf, Nb, Ta, W)C-SiC Composite Ceramics: Preparation via Precursor Route and Properties [J]. Journal of Inorganic Materials, 2025, 40(3): 271-280.
[12]	MU Haojie, ZHANG Yuanjiang, YU Bin, FU Xiumei, ZHOU Shibin, LI Xiaodong. Preparation and Properties of ZrO₂ Doped Y₂O₃-MgO Nanocomposite Ceramics [J]. Journal of Inorganic Materials, 2025, 40(3): 281-289.
[13]	ZHENG Yuanshun, YU Jian, YE Xianfeng, LIANG Dong, ZHU Wanting, NIE Xiaolei, WEI Ping, ZHAO Wenyu, ZHANG Qingjie. Boosting the Thermoelectric Performance of Full-Heusler Fe₂VAl Alloy via Substituting Al Site with V [J]. Journal of Inorganic Materials, 2025, 40(12): 1425-1432.
[14]	WANG Hao, LIU Xuechao, ZHENG Zhong, PAN Xiuhong, XU Jintao, ZHU Xinfeng, CHEN Kun, DENG Weijie, TANG Meibo, GUO Hui, GAO Pan. Performance of Lateral 4H-SiC Photoconductive Semiconductor Switches by Extrinsic Backside Trigger [J]. Journal of Inorganic Materials, 2024, 39(9): 1070-1076.
[15]	FAN Wugang, CAO Xiong, ZHOU Xiang, LI Ling, ZHAO Guannan, ZHANG Zhaoquan. Anticorrosion Performance of 8YSZ Ceramics in Simulated Aqueous Environment of Pressurized Water Reactor [J]. Journal of Inorganic Materials, 2024, 39(7): 803-809.

Effect of Nano SiC Particles on the Microstructure of Al₂O₃ Ceramics

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments