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Phase and Micromorphology Evolution of Corundum-Ti2O3 Two-Phase Material in Oxidation Atmosphere
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Qingyao ZHENG1, Jialin Sun1, Yong LI1, Xi Yue1, Li Feng2, Shulong MA3
Journal of the Chinese Ceramic Society | 2023, 51(3) : 589 - 593
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Journal of the Chinese Ceramic Society | 2023, 51(3): 589-593
• Research Articles •
Phase and Micromorphology Evolution of Corundum-Ti2O3 Two-Phase Material in Oxidation Atmosphere
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Qingyao ZHENG1, Jialin Sun1, Yong LI1, Xi Yue1, Li Feng2, Shulong MA3
Affiliations
  • 1.School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • 2.Jinzhou Guotai Industrial Co., Ltd, Jinzhou 121000, Liaoning, China
  • 3.Beijing Jinyu Tongda Refractory Technologies Co. Ltd, Beijing 100041, China

    • ZHENG Qingyao (1995-), female, Doctorial candidate. E-mail:

About Author:

ZHENG Qingyao (1995-), female, Doctorial candidate. E-mail:

Published: 2023-03-20 doi: 10.14062/j.issn.0454-5648.20220869
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Corundum-Ti2O3 two-phase material is a by-product obtained via adjusting the smelting process of low-ferrotitanium alloy. Al2O3 and Ti2O3 exist independently in raw material, which can be used as a refractory raw material. According to the results by thermogravimetry-differential scanning calorimetry and thermodynamic analysis, the oxidation reaction of Ti2O3 in the raw material starts at 700 ℃, and the reaction between Al2O3 and TiO2 starts at 1 263 ℃. The results by X-ray diffraction and scanning electron microscopy indicate that Ti2O3 completes the oxidation reaction at 800 ℃, which is affected by the decomposition reaction of Al2TiO5 at 1 300 ℃, only part of TiO2 and Al2O3 reacts at the corundum junction to form flake Al2TiO5. As the sintering temperature is increased to 1 400 ℃ and 1 500 ℃, the reaction of Al2O3 and TiO2 to form Al2TiO5 is gradually completed, and a typical columnar aluminum titanate is formed on the basis of flakes.

aluminum titanate  /  corundum  /  titanium trioxide  /  refractory raw material
郑清瑶, 孙加林, 李勇, 岳茜, 冯立, 马淑龙. 刚玉-Ti2O3共存物相在氧化气氛下的相变与形貌演变. 硅酸盐学报, 2023 , 51 (3) : 589 -593 . DOI: 10.14062/j.issn.0454-5648.20220869
Qingyao ZHENG, Jialin Sun, Yong LI, Xi Yue, Li Feng, Shulong MA. Phase and Micromorphology Evolution of Corundum-Ti2O3 Two-Phase Material in Oxidation Atmosphere[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (3) : 589 -593 . DOI: 10.14062/j.issn.0454-5648.20220869
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Year 2023 volume 51 Issue 3
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Article Info
doi: 10.14062/j.issn.0454-5648.20220869
  • Receive Date：2022-10-12
  • Online Date：2026-10-20
  • Published：2023-03-20
Article Data
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History
  • Received：2022-10-12
  • Revised：2022-11-02
Funding
Affiliations
    1.School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
    2.Jinzhou Guotai Industrial Co., Ltd, Jinzhou 121000, Liaoning, China
    3.Beijing Jinyu Tongda Refractory Technologies Co. Ltd, Beijing 100041, China

Corresponding:

LI Yong (1964-), 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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