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Effect of Lepidolite on Mechanical Properties of Mullite-Corundum Composite Ceramics Prepared By Low Temperature Sintering of Bauxite Tailings
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Xinyi CHEN, Qi WANG, Minghao FANG, Xinyue HU, Yangai LIU, Xiaowen WU, Ruiyu MI, Zhaohui HUANG, Xin MIN
Journal of the Chinese Ceramic Society | 2023, 51(3) : 757 - 766
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Journal of the Chinese Ceramic Society | 2023, 51(3): 757-766
• Research Articles •
Effect of Lepidolite on Mechanical Properties of Mullite-Corundum Composite Ceramics Prepared By Low Temperature Sintering of Bauxite Tailings
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Xinyi CHEN, Qi WANG, Minghao FANG, Xinyue HU, Yangai LIU, Xiaowen WU, Ruiyu MI, Zhaohui HUANG, Xin MIN
Affiliations
  • Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China

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

About Author:

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

Published: 2023-03-20 doi: 10.14062/j.issn.0454-5648.20220654
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With bauxite tailings as the main raw material, adding bauxite clinker and lithium chinaite to prepare the traditional mulite-corundum multiphase ceramics, adding different contents of lepidolite, to explore the influence of the properties of mulite-corundum multiphase ceramics. The phase composition and morphology of ceramics were analyzed by X-ray diffractometer and scanning electron microscope. The effects of lepidolite content and sintering temperature on the mechanical properties of ceramics were studied. The results show that: The addition of lepidolite can reduce the sintering temperature and improve the strength of ceramics. When 10% lepidolite is added and the sintering temperature is 950 ℃, the strength of mulite-corundum multiphase ceramics is the highest, and the ceramics phase composition is corundum, mullite, quartz, hematite, rutile and glass, and the volume density is 1.75 g/cm3, the thermal conductivity is 0.447 W/(m·K), the linear shrinkage is 5.47%, and the compressive strength is 74.87 MPa. It has a wide application prospect in the fields of thermal storage ceramics and refractory materials.

lepidolite  /  bauxite tailings  /  low temperature sintering
陈新义, 王淇, 房明浩, 胡心悦, 刘艳改, 吴小文, 米瑞宇, 黄朝晖, 闵鑫. 锂云母对铝矾土尾矿低温烧结制备莫来石-刚玉复相陶瓷力学性能的影响. 硅酸盐学报, 2023 , 51 (3) : 757 -766 . DOI: 10.14062/j.issn.0454-5648.20220654
Xinyi CHEN, Qi WANG, Minghao FANG, Xinyue HU, Yangai LIU, Xiaowen WU, Ruiyu MI, Zhaohui HUANG, Xin MIN. Effect of Lepidolite on Mechanical Properties of Mullite-Corundum Composite Ceramics Prepared By Low Temperature Sintering of Bauxite Tailings[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (3) : 757 -766 . DOI: 10.14062/j.issn.0454-5648.20220654
Appendix
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Year 2023 volume 51 Issue 3
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Article Info
doi: 10.14062/j.issn.0454-5648.20220654
  • Receive Date：2022-08-15
  • Online Date：2026-10-20
  • Published：2023-03-20
Article Data
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History
  • Received：2022-08-15
  • Revised：2022-12-06
Funding
Affiliations
    Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China

Corresponding:

FANG Minghao (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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