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Reaction Mechanism and High-Temperature Oxidation Behavior of Reactively Sintered ZrB2-SiC-Zr2Al4C5 Composite Ceramics
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Qilong GUO1, 2, Liang HUA1, Ronghao LIU1, Hao YING1, Leilei LI1, 2, Jing WANG1, 2
Journal of the Chinese Ceramic Society | 2023, 51(3) : 706 - 720
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Journal of the Chinese Ceramic Society | 2023, 51(3): 706-720
• Research Articles •
Reaction Mechanism and High-Temperature Oxidation Behavior of Reactively Sintered ZrB2-SiC-Zr2Al4C5 Composite Ceramics
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Qilong GUO1, 2, Liang HUA1, Ronghao LIU1, Hao YING1, Leilei LI1, 2, Jing WANG1, 2
Affiliations
  • 1.School of Civil Engineering, Northwest University for Nationalities, Lanzhou 730124, China
  • 2.Key Laboratory of New Building Materials and Building Energy Efficiency of Gansu Province, Lanzhou 730124, China
  • Guo Qilong (1986-), male, Ph.D., Associate Professor. E-mail:

About Author:

Guo Qilong (1986-), male, Ph.D., Associate Professor. E-mail:

Published: 2023-03-20 doi: 10.14062/j.issn.0454-5648.20220837
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ZrB2-based composite ceramics have great potential for applications at ultra-high temperatures, but the low toughness and poor oxidation resistance of them limit their practical applications. In this work, the Zr, B4C, Al, C and Si raw powders were used to prepare ZrB2-SiC-Zr2Al4C5 composite ceramics by reactive spark plasma sintering. The reaction processes and mechanism were studied. The effects of Zr2Al4C5 content and oxidation temperature on high-temperature oxidation behavior of multiphase ceramics were investigated for revealing the anti-oxidation mechanism. The results indicated that the B4C reacted with Zr to form ZrB2 at 900 ℃, and then the SiC formed at 1 100 ℃. At 1 400 ℃, the Zr2Al4C5 formed from the reaction of Zr3Al3C5, ZrC and Al4C3 which formed at the early initial reaction stage. And the Zr2Al4C5 transformed into Zr3Al4C6 with further increasing temperature. The main phases of the composite ceramics after oxidation are ZrO2, ZrSiO4, aluminosilicate and SiO2 glass. With increasing Zr2Al4C5 content, the surface of the oxide layer of the composite ceramics became uneven, loose and porous, while obvious long strip grains and inhomogeneous distribution of glassy phases were also observed. This study not only provides a new experimental reference for in-depth understanding of the high-temperature oxidation behavior of ZrB2-SiC based multiphase ceramics, but also provides new experimental and theoretical support for developing high-performance ZrB2-SiC based high-temperature composite ceramics.

zirconium diborides-based multiphase ceramic  /  sintering  /  reaction mechanism  /  oxidation behavior
郭启龙, 华亮, 刘荣浩, 应豪, 李蕾蕾, 王璟. ZrB2-SiC-Zr2Al4C5复相陶瓷烧结反应机理与高温氧化行为. 硅酸盐学报, 2023 , 51 (3) : 706 -720 . DOI: 10.14062/j.issn.0454-5648.20220837
Qilong GUO, Liang HUA, Ronghao LIU, Hao YING, Leilei LI, Jing WANG. Reaction Mechanism and High-Temperature Oxidation Behavior of Reactively Sintered ZrB2-SiC-Zr2Al4C5 Composite Ceramics[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (3) : 706 -720 . DOI: 10.14062/j.issn.0454-5648.20220837
Year 2023 volume 51 Issue 3
33
5
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Article Info
doi: 10.14062/j.issn.0454-5648.20220837
  • Receive Date:2022-10-05
  • Online Date:2026-10-20
  • Published:2023-03-20
Article Data
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History
  • Received:2022-10-05
  • Revised:2022-11-26
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Affiliations
    1.School of Civil Engineering, Northwest University for Nationalities, Lanzhou 730124, China
    2.Key Laboratory of New Building Materials and Building Energy Efficiency of Gansu Province, Lanzhou 730124, China
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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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