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Phase Evolution of Ti-Al2O3 Composite Refractory at 1600 ℃ Nitrogen Atmosphere
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Yiming GUO, Yong LI, Yang SUN, Xiaofang WU, Deting XU, Chenhong MA, Xian HE
Journal of the Chinese Ceramic Society | 2020, 48(9) : 1488 - 1493
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Journal of the Chinese Ceramic Society | 2020, 48(9): 1488-1493
Phase Evolution of Ti-Al2O3 Composite Refractory at 1600 ℃ Nitrogen Atmosphere
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Yiming GUO, Yong LI, Yang SUN, Xiaofang WU, Deting XU, Chenhong MA, Xian HE
Affiliations
  • School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

    • GUO Yiming (1995-), female, Master candidate. E-mail:

About Author:

GUO Yiming (1995-), female, Master candidate. E-mail:

Published: 2020-09-20 doi: 10.14062/j.issn.0454-5648.20200045
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Ti-Al2O3 composite samples were prepared using sintered alumina and metallic titanium as the raw materials and phenolic resin as the binder. The samples were placed in a graphite crucible and sintered in a carbon tube furnace at 1 600 ℃ in flowing nitrogen. The phase evolution of the sintered samples was analyzed. The results showed that titanium firstly reacted with nitrogen to form titanium nitride. When the content of titanium reached 12%, it can also be fully nitrided. The titanium nitride formed was mostly a flaky structure, and the rest was whisker-like. A small amount of carbon monoxide in nitrogen atmosphere can diffuse into the sample, and form a stable titanium carbonitride solid solution. For samples with 3% titanium, the strength of the sample with 3% graphite decreased by 50%. Similar titanium carbonitride solid solution was formed in Ti-Al2O3 samples with and without graphite. Al5O6N was found in the corundum sample, but not in Samples with titanium. Alumina can exist stably in the Ti-Al2O3 samples with metal titanium added. The phase evolution mechanism model of Ti-Al2O3 samples was established.

titanium  /  α-alumina  /  titanium carbonitride  /  phase evolution
郭艺鸣, 李勇, 孙洋, 吴晓芳, 徐德亭, 马晨红, 和弦. 1600 ℃氮气气氛Ti-Al2O3复合耐火材料的相演变行为. 硅酸盐学报, 2020 , 48 (9) : 1488 -1493 . DOI: 10.14062/j.issn.0454-5648.20200045
Yiming GUO, Yong LI, Yang SUN, Xiaofang WU, Deting XU, Chenhong MA, Xian HE. Phase Evolution of Ti-Al2O3 Composite Refractory at 1600 ℃ Nitrogen Atmosphere[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (9) : 1488 -1493 . DOI: 10.14062/j.issn.0454-5648.20200045
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Year 2020 volume 48 Issue 9
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Article Info
doi: 10.14062/j.issn.0454-5648.20200045
  • Receive Date：2020-01-22
  • Online Date：2026-10-29
  • Published：2020-09-20
Article Data
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History
  • Received：2020-01-22
  • Revised：2020-03-05
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Affiliations
    School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

Corresponding:

LI Yong (1964-), male, Ph.D., Professor. E-mail:
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Citations
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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