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Design and Preparation of Y2O3-Al2O3-MgO-CaO Refractories for Titanium Alloy Smelting
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Kun LIU1, Beiyue MA1, Ping ZHOU1, Wenyu ZAN1, Chao YU2, Chengji DENG2, Zhoufu WANG2
Journal of the Chinese Ceramic Society | 2023, 51(3) : 628 - 634
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Journal of the Chinese Ceramic Society | 2023, 51(3): 628-634
• Research Articles •
Design and Preparation of Y2O3-Al2O3-MgO-CaO Refractories for Titanium Alloy Smelting
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Kun LIU1, Beiyue MA1, Ping ZHOU1, Wenyu ZAN1, Chao YU2, Chengji DENG2, Zhoufu WANG2
Affiliations
  • 1.School of Metallurgy, Northeastern University, Shenyang 110819, China
  • 2.The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China

    • LIU Kun (1997-), male, Master candidate. E-mail:

About Author:

LIU Kun (1997-), male, Master candidate. E-mail:

Published: 2023-03-20 doi: 10.14062/j.issn.0454-5648.20220829
Outline
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Crucible refractories are very important for the quality of titanium alloy smelting. In order to develop novel crucible material with high performance, in this work, Y2O3-Al2O3-MgO-CaO composite refractories were prepared with commercial yttrium oxide and Al2O3-MgO-CaO powders (AMC) as raw materials, and the effects of sintering temperature (i.e., 1 500 ℃, 1 600 ℃) and AMC contents (i.e., 0, 25%, 50%, 75% and 100%, in mass fraction) on the phase compositions, sintering properties (i.e., linear shrinkage, volumetric shrinkage, apparent porosity, and bulk density), compressive strength at room temperature, thermal shock resistance and microstructures of as-prepared refractories were investigated. The results show that the most properties of the composites are improved, compared with Y2O3 and AMC. The performance becomes better as the sintering temperature increases. Moreover, the linear shrinkage, volumetric shrinkage, bulk density and compressive strength at room temperature of the composites increase with the increase of AMC contents. At the AMC content of 75%, the composite sintered at 1 500 ℃ for 3 h has the optimum comprehensive performance (i.e., the apparent porosity of 4.37%, the compressive strength at room temperature of 274.99 MPa, the residual strength after three water-cooling and thermal shocks of 161.60 MPa, and the residual strength ratio of 58.78%).

composite refractories  /  yttrium oxide  /  calcium magnesium aluminate  /  sintering temperature  /  raw material ratio
刘坤, 马北越, 周萍, 昝文宇, 余超, 邓承继, 王周福. 钛合金熔炼用Y2O3-Al2O3-MgO-CaO系耐火材料的设计与制备. 硅酸盐学报, 2023 , 51 (3) : 628 -634 . DOI: 10.14062/j.issn.0454-5648.20220829
Kun LIU, Beiyue MA, Ping ZHOU, Wenyu ZAN, Chao YU, Chengji DENG, Zhoufu WANG. Design and Preparation of Y2O3-Al2O3-MgO-CaO Refractories for Titanium Alloy Smelting[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (3) : 628 -634 . DOI: 10.14062/j.issn.0454-5648.20220829
Appendix
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Year 2023 volume 51 Issue 3
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Article Info
doi: 10.14062/j.issn.0454-5648.20220829
  • Receive Date：2022-10-02
  • Online Date：2026-10-20
  • Published：2023-03-20
Article Data
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History
  • Received：2022-10-02
  • Revised：2022-10-24
Funding
Affiliations
    1.School of Metallurgy, Northeastern University, Shenyang 110819, China
    2.The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China

Corresponding:

MA Beiyue (1978-), male, Ph.D., 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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