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Effect of h-BN on Microstructure and Properties of Al2O3-C Refractories at Different Nitriding Temperatures
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Tao CHEN, Xing WANG, Zhenglong LIU, Chengji DENG, Chao YU, Jun DING, Hongxi ZHU
Journal of the Chinese Ceramic Society | 2022, 50(12) : 3305 - 3313
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Journal of the Chinese Ceramic Society | 2022, 50(12): 3305-3313
• Research Articles •
Effect of h-BN on Microstructure and Properties of Al2O3-C Refractories at Different Nitriding Temperatures
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Tao CHEN, Xing WANG, Zhenglong LIU, Chengji DENG, Chao YU, Jun DING, Hongxi ZHU
Affiliations
  • The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China

    • CHEN Tao (1996-), male, Master candidate. E-mail:

About Author:

CHEN Tao (1996-), male, Master candidate. E-mail:

Published: 2022-12-20 doi: 10.14062/j.issn.0454-5648.20220370
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A low-carbon Al2O3-C composite refractory was prepared with white fused alumina, flake graphite, active α-Al2O3 micron-sized powder, Al powder and Si powder as raw materials, and h-BN (in mass fraction 0%, and 3%) as additives. The effect of h-BN addition on the microstructure, physical properties and oxidation resistance of Al2O3-C refractories at different nitriding temperatures was investigated. The results show that the addition of h-BN promotes the formation of SiC whiskers. The cold compressive strength and cold modulus of rupture of the samples with h-BN addition after nitriding at 1 400 ℃ are 6% and 10% greater than those of the samples without h-BN addition, respectively. Also, the oxidation resistance of the samples with h-BN addition is significantly improved. Among those samples, the oxidation resistance of the samples with h-BN addition after nitriding at 1 500 ℃ is improved by 21%, compared with the samples without h-BN addition.

hexagonal boron nitride  /  nitriding temperature  /  low-carbon aluminum carbon refractories  /  oxidation resistance  /  physical properties
陈韬, 王杏, 刘正龙, 邓承继, 余超, 丁军, 祝洪喜. 不同氮化温度下h-BN对Al2O3-C耐火材料显微结构与性能的影响. 硅酸盐学报, 2022 , 50 (12) : 3305 -3313 . DOI: 10.14062/j.issn.0454-5648.20220370
Tao CHEN, Xing WANG, Zhenglong LIU, Chengji DENG, Chao YU, Jun DING, Hongxi ZHU. Effect of h-BN on Microstructure and Properties of Al2O3-C Refractories at Different Nitriding Temperatures[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (12) : 3305 -3313 . DOI: 10.14062/j.issn.0454-5648.20220370
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Year 2022 volume 50 Issue 12
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Article Info
doi: 10.14062/j.issn.0454-5648.20220370
  • Receive Date：2022-05-09
  • Online Date：2026-10-20
  • Published：2022-12-20
Article Data
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History
  • Received：2022-05-09
  • Revised：2022-07-05
Funding
Affiliations
    The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China

Corresponding:

DING Jun (1982-), 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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