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Design and Preparation of Y3Al5O12-Al4SiC4 Composite Refractory
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Xiaobing DENG1, Chengji DENG1, Guangchao XING1, Jun DING1, Zhoufu WANG1, Beiyue MA2, Hongxi ZHU1, Chao YU1
Journal of the Chinese Ceramic Society | 2023, 51(6) : 1555 - 1564
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Journal of the Chinese Ceramic Society | 2023, 51(6): 1555-1564
• Research Articles •
Design and Preparation of Y3Al5O12-Al4SiC4 Composite Refractory
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Xiaobing DENG1, Chengji DENG1, Guangchao XING1, Jun DING1, Zhoufu WANG1, Beiyue MA2, Hongxi ZHU1, Chao YU1
Affiliations
  • 1.The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
  • 2.School of Metallurgy, Northeastern University, Shenyang 110819, China

    • DENG Xiaobing (1997-), male, Master candidate. E-mail:

About Author:

DENG Xiaobing (1997-), male, Master candidate. E-mail:

Published: 2023-06-20 doi: 10.14062/j.issn.0454-5648.20220860
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Y3Al5O12-Al4SiC4 composite refractory was prepared via pressureless sintering with Al4SiC4 as a raw material and Y2O3 as an additive. The effect of Y2O3 addition (i.e., 0-5% in mass fraction) on the phase composition, microstructure and mechanical properties of the composite was investigated, and the effect of Y3+ ions on the surface energy of Al4SiC4 different crystal faces was calculated via the DFT simulation. The results show that the addition of Y2O3 can form an eutectic liquid phase with anintrinsic oxide layer on the surface of Al4SiC4 at a high temperature, Y3Al5O12 and a small amount of Y2SiO5 appear at the grain boundary of the composite.The addition of Y2O3 promotes the growth of Al4SiC4 grains along the two-dimensional plane and the transformation from irregular to hexagonal flakes due to the reduction of surface energy of different crystal faces of Al4SiC4 by Y3+ in the additive, according to the DFT results. The flexural strength of the composite first increases and then decreases with the increase of Y2O3 addition. At theY2O3 addition of 3%, the hexagonal lamellar Al4SiC4 grains with a uniform size form a staggered skeleton structure, and Y3Al5O12 dispersesat the grain boundary of Al4SiC4, which is conducive to the improvement of the mechanical properties of Y3Al5O12-Al4SiC4 composite. The bulk density, apparent porosity and flexural strength of the composite are 2.44 g·cm-3, 20.15% and 52.7 MPa, respectively.

aluminium silicon carbide  /  yttrium aluminium garnet  /  composite  /  refectory  /  mechanical properties
邓孝兵, 邓承继, 邢广超, 丁军, 王周福, 马北越, 祝洪喜, 余超. Y3Al5O12-Al4SiC4复合耐火材料的设计与制备. 硅酸盐学报, 2023 , 51 (6) : 1555 -1564 . DOI: 10.14062/j.issn.0454-5648.20220860
Xiaobing DENG, Chengji DENG, Guangchao XING, Jun DING, Zhoufu WANG, Beiyue MA, Hongxi ZHU, Chao YU. Design and Preparation of Y3Al5O12-Al4SiC4 Composite Refractory[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (6) : 1555 -1564 . DOI: 10.14062/j.issn.0454-5648.20220860
Appendix
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Year 2023 volume 51 Issue 6
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Article Info
doi: 10.14062/j.issn.0454-5648.20220860
  • Receive Date：2022-10-11
  • Online Date：2026-10-20
  • Published：2023-06-20
Article Data
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History
  • Received：2022-10-11
  • Revised：2022-11-03
Funding
Affiliations
    1.The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
    2.School of Metallurgy, Northeastern University, Shenyang 110819, China

Corresponding:

YU Chao (1986-), male, Ph.D., Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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