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Effect of Nano-Carbon/MgAl2O4 Spinel Composite Powder on Properties of Low-carbon Al2O3-C Refractories
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Guodan LI1, Donghai DING1, Guoqing XIAO1, Lihua LV2, Changkun LEI1, Jianjun CHEN1
Journal of the Chinese Ceramic Society | 2021, 49(9) : 2036 - 2044
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Journal of the Chinese Ceramic Society | 2021, 49(9): 2036-2044
• Research Article •
Effect of Nano-Carbon/MgAl2O4 Spinel Composite Powder on Properties of Low-carbon Al2O3-C Refractories
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Guodan LI1, Donghai DING1, Guoqing XIAO1, Lihua LV2, Changkun LEI1, Jianjun CHEN1
Affiliations
  • 1.College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
  • 2.Shanxi Institute of Technology, Yangquan 045000, Shanxi, China

    • LI Guodan (1995-), female, Master candidate. E-mail:

About Author:

LI Guodan (1995-), female, Master candidate. E-mail:

Published: 2021-09-20 doi: 10.14062/j.issn.0454-5648.20200921
Outline
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A nano-carbon/MgAl2O4 spinel composite powder was prepared with magnesia citrate and alumina via buried carbon-bed sintering. The nano-carbon/MgAl2O4 spinel composite powder was investigated by X-ray diffraction, field emission scanning electron microscopy and energy dispersive spectroscopy. The effect of composite powder amount on the physical properties, oxidation resistance, slag corrosion resistance and thermal shock resistance for low-carbon Al2O3-C refractories was investigated. The results show that carbon in the nano-carbon/MgAl2O4 spinel composite powder is equally distributed, and attached onto the spinel grain surface or mixed between the grains, leading to the composite powder having the corrosion resistance and thermal shock resistance for the low-carbon Al2O3-C refractories. Compared to the blank sample, the corrosion resistance of the sample with nano-carbon/MgAl2O4 spinel composite powder of 4.5% (in mass fraction) is increased by 71.3%, the thermal shock resistance is improved, and the residual strength retention rate is increased by 43.2%, thus indicating that the nano- carbon/MgAl2O4 spinel composite powder can improve the properties of low-carbon Al2O3-C refractories.

low-carbon aluminum carbon refractories  /  nano carbon/magnesium aluminum spinel composite powder  /  thermal shock resistance
李国丹, 丁冬海, 肖国庆, 吕李华, 雷长坤, 陈建军. 纳米碳/镁铝尖晶石复合粉对低碳铝碳耐火材料性能的影响. 硅酸盐学报, 2021 , 49 (9) : 2036 -2044 . DOI: 10.14062/j.issn.0454-5648.20200921
Guodan LI, Donghai DING, Guoqing XIAO, Lihua LV, Changkun LEI, Jianjun CHEN. Effect of Nano-Carbon/MgAl2O4 Spinel Composite Powder on Properties of Low-carbon Al2O3-C Refractories[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (9) : 2036 -2044 . DOI: 10.14062/j.issn.0454-5648.20200921
Appendix
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Year 2021 volume 49 Issue 9
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Article Info
doi: 10.14062/j.issn.0454-5648.20200921
  • Receive Date：2020-12-16
  • Online Date：2026-10-30
  • Published：2021-09-20
Article Data
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History
  • Received：2020-12-16
  • Revised：2021-03-05
Funding
Affiliations
    1.College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
    2.Shanxi Institute of Technology, Yangquan 045000, Shanxi, China

Corresponding:

XIAO Guoqing (1967-), male, 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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