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Microstructure and Mechanical Properties of SiCw/SiC Ceramics Prepared by Binder Jetting Additive Manufacturing Combined with Liquid Silicon Infiltration
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Shidong HU, Kunhao FENG, Qihang WANG, Jiaming YUAN, Yiwei MAO, Daosheng CAI, Qingsong WEI
Journal of the Chinese Ceramic Society | 2023, 51(12) : 3159 - 3168
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Journal of the Chinese Ceramic Society | 2023, 51(12): 3159-3168
• Research Articles •
Microstructure and Mechanical Properties of SiCw/SiC Ceramics Prepared by Binder Jetting Additive Manufacturing Combined with Liquid Silicon Infiltration
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Shidong HU, Kunhao FENG, Qihang WANG, Jiaming YUAN, Yiwei MAO, Daosheng CAI, Qingsong WEI
Affiliations
  • State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

    • HU Shidong (1999-), male, Master candidate. E-mail:

About Author:

HU Shidong (1999-), male, Master candidate. E-mail:

Published: 2023-07-20 doi: 10.14062/j.issn.0454-5648.20230273
Outline
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Silicon carbide (SiC) ceramic has a broad application prospect in aerospace and nuclear power industries due to its advantages of high strength, high hardness and low density. However, the processing difficulty and low toughness of SiC hinder its application. To solve the problems above, SiCw/SiC composites containing different silicon carbide whiskers (SiCw) were prepared via binder jetting additive manufacturing and liquid silicon infiltration. The experimental results show that the flexural strength and fracture toughness of the composite can be 215.29 MPa and 3.25 MPa·m1/2 when SiCw contentis 7.5% (in volume fraction), and the hardness is 23.06 HV at 5% SiCw. However, the residual silicon phase content within the composite elevates, and the mechanical properties deteriorates when SiCw content further increases. The two carbonization processes to the green parts effectively reduce Si phase content and increase the flexural strength, fracture toughness, and hardness by 10.15%, 10.46%, and 10.58%, respectively. SiCw is added as a reinforcing and toughening agent for the composite ceramic via deflection cracking, pulling out and fracturing.

binder jetting  /  silicon carbide  /  silicon carbide whisker  /  reaction sintering  /  fracture toughness  /  additive manufacturing
胡时东, 冯琨皓, 王启航, 袁嘉明, 毛贻桅, 蔡道生, 魏青松. 黏结剂喷射增材制造结合液硅反应熔渗制备SiCw/SiC陶瓷的微观组织和力学性能. 硅酸盐学报, 2023 , 51 (12) : 3159 -3168 . DOI: 10.14062/j.issn.0454-5648.20230273
Shidong HU, Kunhao FENG, Qihang WANG, Jiaming YUAN, Yiwei MAO, Daosheng CAI, Qingsong WEI. Microstructure and Mechanical Properties of SiCw/SiC Ceramics Prepared by Binder Jetting Additive Manufacturing Combined with Liquid Silicon Infiltration[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (12) : 3159 -3168 . DOI: 10.14062/j.issn.0454-5648.20230273
Appendix
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Year 2023 volume 51 Issue 12
77
9
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Article Info
doi: 10.14062/j.issn.0454-5648.20230273
  • Receive Date：2023-04-26
  • Online Date：2026-10-19
  • Published：2023-07-20
Article Data
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History
  • Received：2023-04-26
  • Revised：2023-06-01
Funding
Affiliations
    State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Corresponding:

WEI Qingsong (1975-), male, Ph.D., 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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