Home Journals Articles Updates About
CN
image
收藏切换
Preparation and Thermal Shock Behavior of MgO-ZrO2 Refractory Aggregates
收藏切换
Yao MI1, 2, Yibiao XU1, 2, Yawei LI1, 2, Shaobai SANG1, 2, Qinghu WANG1, 2, Tianbin ZHU1, 2, Ning LIAO1, 2, Yajie DAI1, 2
Journal of the Chinese Ceramic Society | 2021, 49(12) : 2760 - 2766
Less
收藏切换
Journal of the Chinese Ceramic Society | 2021, 49(12): 2760-2766
• Research Article •
Preparation and Thermal Shock Behavior of MgO-ZrO2 Refractory Aggregates
Full
Yao MI1, 2, Yibiao XU1, 2, Yawei LI1, 2, Shaobai SANG1, 2, Qinghu WANG1, 2, Tianbin ZHU1, 2, Ning LIAO1, 2, Yajie DAI1, 2
Affiliations
  • 1.The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
  • 2.National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology, Wuhan University of Science and Technology, Wuhan 430081, China

    • MI Yao (1996-), female, Master candidate. E-mail:

About Author:

MI Yao (1996-), female, Master candidate. E-mail:

Published: 2021-12-20 doi: 10.14062/j.issn.0454-5648.20210098
Outline
收藏切换

In order to improve the thermal shock resistance of magnesia aggregates, MgO-ZrO2 refractory aggregates were prepared at 1 600℃ via adding 5% (in mass fraction), 10%, 15% and 20% of m-ZrO2 powder into light burned magnesia powder. The effect of ZrO2 content on the sintering behavior, microstructure, mechanical properties, thermal properties and thermal shock resistance was investigated. The results show that ZrO2 is mainly distributed at the grain boundary of periclase, which can inhibit the abnormal growth of periclase grains and promote the discharge of pores. Some m-ZrO2 interacts with MgO to form c-ZrO2 solid solution, thus activating the periclase lattice and promoting the sintering and densification of specimens. However, more than 10% ZrO2 addition can lead to the more micron-cracks formation at the grain boundary of MgO, which can slightly reduce the density of the specimens. For a specimen with ZrO2, the strength of the specimen reduces slightly and the main crack propagation mode becomes intergranular fracture due to the weakened intergranular bonding of periclase. Also, crack deflection and branching effect occurs after adding ZrO2, leading to an improvement of the fracture toughness KIC, and the specimen with 20% ZrO2 addition has the optimum KIC due to its smallest MgO grain and the longest crack propagation path. In addition, although the addition of ZrO2 results in a decreasing thermal conductivity λ, the KIC of the specimen increases and the coefficient of thermal expansion α decreases, the thermal shock resistance of the specimen improves. The specimen with 5% ZrO2 addition has an optimum thermal shock resistance due to its maximum residual flexural strength and residual flexural strength retention rate.

magnesium oxide  /  zirconia  /  fracture toughness  /  thermal conductivity  /  coefficient of thermal expansion  /  thermal shock resistance
糜瑶, 徐义彪, 李亚伟, 桑绍柏, 王庆虎, 朱天彬, 廖宁, 戴亚洁. MgO-ZrO2耐火骨料的制备及其抗热震行为. 硅酸盐学报, 2021 , 49 (12) : 2760 -2766 . DOI: 10.14062/j.issn.0454-5648.20210098
Yao MI, Yibiao XU, Yawei LI, Shaobai SANG, Qinghu WANG, Tianbin ZHU, Ning LIAO, Yajie DAI. Preparation and Thermal Shock Behavior of MgO-ZrO2 Refractory Aggregates[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (12) : 2760 -2766 . DOI: 10.14062/j.issn.0454-5648.20210098
Appendix
Less
Year 2021 volume 49 Issue 12
28
8
Cite this Article
BibTeX
Article Info
doi: 10.14062/j.issn.0454-5648.20210098
  • Receive Date：2021-02-01
  • Online Date：2026-10-30
  • Published：2021-12-20
Article Data
Affiliations
History
  • Received：2021-02-01
  • Revised：2021-02-26
Funding
Affiliations
    1.The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
    2.National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology, Wuhan University of Science and Technology, Wuhan 430081, China

Corresponding:

XU Yibiao (1986-), male, Ph.D., Associate Professor. E-mail:
References
Share
https://castjournals.cast.org.cn/joweb/gsyxb/EN/10.14062/j.issn.0454-5648.20210098
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
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
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House