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Effect of Cr2O3 Addition on Microstructure and Mechanical Properties of ZTA Composite Ceramics
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Zekai WANG1, Lihui ZHU1, Zhaoquan ZHANG2, Wugang FAN2, Xiaojiao WANG2, Suoxian LIANG2, Longwu KANG2, Yingpu HUANG3
Journal of the Chinese Ceramic Society | 2022, 50(3) : 742 - 749
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Journal of the Chinese Ceramic Society | 2022, 50(3): 742-749
• Research Articles •
Effect of Cr2O3 Addition on Microstructure and Mechanical Properties of ZTA Composite Ceramics
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Zekai WANG1, Lihui ZHU1, Zhaoquan ZHANG2, Wugang FAN2, Xiaojiao WANG2, Suoxian LIANG2, Longwu KANG2, Yingpu HUANG3
Affiliations
  • 1.School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
  • 2.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • 3.School of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China

    • WANG Zekai (1997-), male, Master candidate. E-mail:

About Author:

WANG Zekai (1997-), male, Master candidate. E-mail:

Published: 2022-03-20 doi: 10.14062/j.issn.0454-5648.20210549
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ZTA composite ceramics were prepared via pressureless sintering, and the influence of Cr2O3 doping on the microstructure and mechanical properties of ZTA ceramics was investigated. The results show that Cr2O3 can promote the growth of Al2O3 grains and obtain elongated Al2O3 grains. The density, hardness and fracture toughness of ZTA ceramics firstly increase and then decrease with the increase of Cr2O3 addition. ZTA ceramics with 0.6% Cr2O3 addition exhibit the optimum properties. However, the properties of ZTA ceramics with the excessive addition of Cr2O3 can be impaired due to the increased internal porosities. The mechanical properties of ZTA composite ceramics with Cr2O3 nano-sized particles are superior to those with Cr2O3 micron-sized particles. The addition of Cr2O3 nano-sized particles results in greater density and hardness of ZTA ceramics due to the smaller average grain size of Al2O3. Besides, the fracture toughness of ZTA ceramics improves due to the formation of more elongated grains and the consumption of more energy for crack propagation.

chromia  /  zirconia toughened alumina composite ceramics  /  microstructure  /  mechanical properties
王泽楷, 朱丽慧, 张兆泉, 范武刚, 王晓姣, 梁锁贤, 康龙武, 黄颖璞. Cr2O3添加对ZTA复相陶瓷显微结构和力学性能的影响. 硅酸盐学报, 2022 , 50 (3) : 742 -749 . DOI: 10.14062/j.issn.0454-5648.20210549
Zekai WANG, Lihui ZHU, Zhaoquan ZHANG, Wugang FAN, Xiaojiao WANG, Suoxian LIANG, Longwu KANG, Yingpu HUANG. Effect of Cr2O3 Addition on Microstructure and Mechanical Properties of ZTA Composite Ceramics[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (3) : 742 -749 . DOI: 10.14062/j.issn.0454-5648.20210549
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Year 2022 volume 50 Issue 3
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Article Info
doi: 10.14062/j.issn.0454-5648.20210549
  • Receive Date：2021-07-06
  • Online Date：2026-10-22
  • Published：2022-03-20
Article Data
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History
  • Received：2021-07-06
  • Revised：2021-08-25
Funding
Affiliations
    1.School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
    2.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
    3.School of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China

Corresponding:

ZHU Lihui (1971-), female, 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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