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Effect of Spinel-Coated Aggregates on Thermal Shock Resistance and Cement Clinker Corrosion Resistance of Magnesia Spinel Refractories
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Fangdi ZHU, Yajie DAI, Wen YAN, Yibiao XU, Dan WANG, Chao WANG
Journal of the Chinese Ceramic Society | 2023, 51(3) : 658 - 668
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Journal of the Chinese Ceramic Society | 2023, 51(3): 658-668
• Research Articles •
Effect of Spinel-Coated Aggregates on Thermal Shock Resistance and Cement Clinker Corrosion Resistance of Magnesia Spinel Refractories
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Fangdi ZHU, Yajie DAI, Wen YAN, Yibiao XU, Dan WANG, Chao WANG
Affiliations
  • Wuhan University of Science and Technology, The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology, Wuhan 430081, China

    • ZHU Fangdi (1997-), male, Master candidate. E-mail:

About Author:

ZHU Fangdi (1997-), male, Master candidate. E-mail:

Published: 2023-03-20 doi: 10.14062/j.issn.0454-5648.20220822
Outline
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Cement rotary kilns using refractories require excellent refractoriness, thermal shock stability and corrosion resistance due to the cyclic rotation and feeding-discharging of cement clinker. In this paper, a kind of magnesia-alumina spinel refractory containing coating structured aggregates were prepared by wrapping spinel fines on the surface of magnesia aggregates. The fracture behavior and corrosion resistance of prepared refractories were characterized by three-point bending test combined with digital image correlation, acoustic emission technique, and static slag resistance method. The results indicate that by changing the distribution of spinel to make coating structure aggregates, the alumina content is effectively reduced while a more uniform and extensive distribution of spinel phase is achieved. Compared with the merchant magnesia-alumina spinel refractory (10% Al2O3) with pre-synthetic spinel aggregates, the magnesia-alumina spinel refractory (5% Al2O3) with spinel coating aggregates has the improved mechanical strength and corrosion resistance, and maintains the thermal shock resistance.

magnesia-alumina spinel refractories  /  coating structured aggregates  /  thermal shock stability  /  corrosion/penetration resistance  /  nondestructive testing methods
朱方迪, 戴亚洁, 鄢文, 徐义彪, 汪丹, 汪超. 尖晶石包覆骨料对镁铝质耐火材料抗热震性和抗水泥熟料侵蚀的影响. 硅酸盐学报, 2023 , 51 (3) : 658 -668 . DOI: 10.14062/j.issn.0454-5648.20220822
Fangdi ZHU, Yajie DAI, Wen YAN, Yibiao XU, Dan WANG, Chao WANG. Effect of Spinel-Coated Aggregates on Thermal Shock Resistance and Cement Clinker Corrosion Resistance of Magnesia Spinel Refractories[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (3) : 658 -668 . DOI: 10.14062/j.issn.0454-5648.20220822
Appendix
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Year 2023 volume 51 Issue 3
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Article Info
doi: 10.14062/j.issn.0454-5648.20220822
  • Receive Date：2022-09-30
  • Online Date：2026-10-20
  • Published：2023-03-20
Article Data
Affiliations
History
  • Received：2022-09-30
  • Revised：2022-11-02
Funding
Affiliations
    Wuhan University of Science and Technology, The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology, Wuhan 430081, China

Corresponding:

DAI Yajie (1987-), female, Ph.D., Associate 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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