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Preparation of Porous Ceramics with Red Mud and High-Aluminum Fly Ash by Melting Foaming Method
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Xiang DING1, 2, Kaikai PAN1, 2, Bo PENG2, Xingsheng HU2, Xiangong DENG3, Songlin RAN1
Journal of the Chinese Ceramic Society | 2022, 50(3) : 713 - 722
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Journal of the Chinese Ceramic Society | 2022, 50(3): 713-722
• Research Articles •
Preparation of Porous Ceramics with Red Mud and High-Aluminum Fly Ash by Melting Foaming Method
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Xiang DING1, 2, Kaikai PAN1, 2, Bo PENG2, Xingsheng HU2, Xiangong DENG3, Songlin RAN1
Affiliations
  • 1.Anhui Provincial Key Laboratory of Metallurgical Engineering & Resources Recycling (Anhui University of Technology), Ma'anshan 243002, Anhui, China
  • 2.Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, Anhui, China
  • 3.School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243032, Anhui, China

    • DING Xiang (1986-), male, Ph.D., Lecturer. E-mail:

About Author:

DING Xiang (1986-), male, Ph.D., Lecturer. E-mail:

Published: 2022-03-20 doi: 10.14062/j.issn.0454-5648.20210644
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Porous ceramics were prepared by a high-temperature melting foaming method with red mud and high-aluminum fly ash as main raw materials. The effects of raw material composition and foaming process on the cellular structure and properties were investigated. The results show that the cellular structure of porous ceramic obtained after melt foaming at 1 200 ℃ for 1 h changes from closed to open, eventually forming a composite cellular structure. Also, the average pore size and porosity increase, while the bulk density and thermal conductivity decrease with increasing the mass ratio of SiO2/Al2O3 from 1.2 to 1.9 in the raw material composition. At the blowing agent of 5% (in mass fraction) SiC and the melting agent of albite and microcline of 35%, a composite cellular structure porous ceramic with the bulk density of 0.63 g/cm3, average pore size of 0.98 mm and bulk porosity of 70% is obtained, and its flexural strength and thermal conductivity are 7.17 MPa and 0.34 W/(m·K), respectively.

red mud  /  high aluminum fly ash  /  porous ceramics  /  cellular structure
丁祥, 潘凯凯, 彭波, 胡兴胜, 邓先功, 冉松林. 熔融发泡法制备赤泥-高铝粉煤灰基多孔陶瓷. 硅酸盐学报, 2022 , 50 (3) : 713 -722 . DOI: 10.14062/j.issn.0454-5648.20210644
Xiang DING, Kaikai PAN, Bo PENG, Xingsheng HU, Xiangong DENG, Songlin RAN. Preparation of Porous Ceramics with Red Mud and High-Aluminum Fly Ash by Melting Foaming Method[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (3) : 713 -722 . DOI: 10.14062/j.issn.0454-5648.20210644
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Year 2022 volume 50 Issue 3
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Article Info
doi: 10.14062/j.issn.0454-5648.20210644
  • Receive Date：2021-08-04
  • Online Date：2026-10-22
  • Published：2022-03-20
Article Data
Affiliations
History
  • Received：2021-08-04
  • Revised：2021-09-26
Funding
Affiliations
    1.Anhui Provincial Key Laboratory of Metallurgical Engineering & Resources Recycling (Anhui University of Technology), Ma'anshan 243002, Anhui, China
    2.Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, Anhui, China
    3.School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan 243032, Anhui, China

Corresponding:

RAN Songlin (1981-), 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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