Preparation and Microstructure of Al2O3-YAG Composites

Abstract

Abstract: Polycrystalline Al₂O₃-YAG composites were obtained by using the coprecipitation method. After calcining at different temperatures, the crystallization
of YAG was found at about 1000℃. Dense bodies could be got by hot-pressing at 1550℃. Bending strength and fracture toughness of Al₂O₃-5vol%YAG
and Al₂O₃-25vol%YAG composites were 604 MPa and 5.0MPa·m^1/2, 611MPa and 4.5MPa·m^1/2 respectively. It indicated that the incorporation of
YAG improved the mechanical property of Al₂O₃ ceramics. Through TEM observation, large YAG particles (about 1mm) located on the grain boundaries of Al₂O₃ were seen, and some small YAG particles (100-200nm)
was among Al₂O₃ grains in both composites. A lot of white areas were found in Al₂O₃-5vol% YAG composite, which maybe result from the low concentration of yttrium.

Key words: YAG, coprecipitation, composites, microstructure

CLC Number:

TB332

WANG Hong-Zhi,GAO Lian,LI Wei-Qun,Hirokazu Kawaoka,Koichi Niihara. Preparation and Microstructure of Al₂O₃-YAG Composites[J]. Journal of Inorganic Materials.

[1]	WANG Bo, YU Jian, LI Cuncheng, NIE Xiaolei, ZHU Wanting, WEI Ping, ZHAO Wenyu, ZHANG Qingjie. Service Stability of Gd/Bi_0.5Sb_1.5Te₃ Thermo-electro-magnetic Gradient Composites [J]. Journal of Inorganic Materials, 2023, 38(6): 663-670.
[2]	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.
[3]	ZHANG Shuo, FU Qiangang, ZHANG Pei, FEI Jie, LI Wei. Influence of High Temperature Treatment of C/C Porous Preform on Friction and Wear Behavior of C/C-SiC Composites [J]. Journal of Inorganic Materials, 2023, 38(5): 561-568.
[4]	HE Danqi, WEI Mingxu, LIU Ruizhi, TANG Zhixin, ZHAI Pengcheng, ZHAO Wenyu. Heavy-Fermion YbAl₃ Materials: One-step Synthesis and Enhanced Thermoelectric Performance [J]. Journal of Inorganic Materials, 2023, 38(5): 577-582.
[5]	SHI Xiaotu, ZHANG Qingli, SUN Guihua, LUO Jianqiao, DOU Renqin, WANG Xiaofei, GAO Jinyun, ZHNAG Deming, LIU Jiandang, YE Bangjiao. Positron Annihilation Study of Yb:YAG Single Crystal Defects under Czochralski Method [J]. Journal of Inorganic Materials, 2023, 38(3): 316-321.
[6]	YANG Jiaxue, LI Wen, WANG Yan, ZHU Zhaojie, YOU Zhenyu, LI Jianfu, TU Chaoyang. Spectroscopic and Yellow Laser Features of Dy³⁺: Y₃Al₅O₁₂ Single Crystals [J]. Journal of Inorganic Materials, 2023, 38(3): 350-356.
[7]	WANG Zhiqiang, WU Ji’an, CHEN Kunfeng, XUE Dongfeng. Large-size Er,Yb:YAG Single Crystal: Growth and Performance [J]. Journal of Inorganic Materials, 2023, 38(3): 329-334.
[8]	MU Licheng, YANG Jinping, WANG Junping, ZHAO Jin, LIU Mengwei, WANG Dewen, ZHANG Jian. Preparation of YAG Transparent Ceramics by Epoxy Resin Modified Spontaneous Coagulation Casting [J]. Journal of Inorganic Materials, 2022, 37(9): 941-946.
[9]	ZHANG Ye, ZENG Yuping. Progress of Porous Silicon Nitride Ceramics Prepared via Self-propagating High Temperature Synthesis [J]. Journal of Inorganic Materials, 2022, 37(8): 853-864.
[10]	XIA Qian, SUN Shihao, ZHAO Yiliang, ZHANG Cuiping, RU Hongqiang, WANG Wei, YUE Xinyan. Effect of Boron Carbide Particle Size Distribution on the Microstructure and Properties of Reaction Bonded Boron Carbide Ceramic Composites by Silicon Infiltration [J]. Journal of Inorganic Materials, 2022, 37(6): 636-642.
[11]	HONG Du, NIU Yaran, LI Hong, ZHONG Xin, ZHENG Xuebin. Tribological Properties of Plasma Sprayed TiC-Graphite Composite Coatings [J]. Journal of Inorganic Materials, 2022, 37(6): 643-650.
[12]	XU Puhao, ZHANG Xiangzhao, LIU Guiwu, ZHANG Mingfen, GUI Xinyi, QIAO Guanjun. Microstructure and Mechanical Properties of SiC Joint Brazed by Al-Ti Alloys as Filler Metal [J]. Journal of Inorganic Materials, 2022, 37(6): 683-690.
[13]	ZHANG Ye, YAO Dongxu, ZUO Kaihui, XIA Yongfeng, YIN Jinwei, ZENG Yuping. Combustion Synthesis of Si₃N₄-BN-SiC Composites by in-situ Introduction of BN and SiC [J]. Journal of Inorganic Materials, 2022, 37(5): 574-578.
[14]	WANG Hongda, FENG Qian, YOU Xiao, ZHOU Haijun, HU Jianbao, KAN Yanmei, CHEN Xiaowu, DONG Shaoming. Microstructure and Corrosion Behavior of Brazed Joints of SiC/SiC Composites and Hastelloy N Alloy Using Cu-Ni Alloy [J]. Journal of Inorganic Materials, 2022, 37(4): 452-458.
[15]	WEI Tingting, GAO Xiguang, SONG Yingdong. Response of 2D SiC/SiC Composites Resistivity to Service Environments [J]. Journal of Inorganic Materials, 2022, 37(4): 420-426.

Preparation and Microstructure of Al₂O₃-YAG Composites

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments