Study on mechanical properties and impact resistance of short carbon fiber reinforced alumina composite ceramics

doi:10.19936/j.cnki.2096-8000.20230628.002

Abstract

Abstract: In this paper, carbon fiber/alumina multiphase ceramics were prepared by traditional alumina ceramic production process. In order to prevent the carbon fiber from being overoxidized in high temperature environment, a carbon powder protective layer and a silicon carbide protective layer were prepared on the surface of the carbon fiber. The effects of carbon fiber contents on mechanical properties and impact resistance of C_sf/Al₂O₃ composite ceramics and C_sf/SiC/Al₂O₃ composite ceramics were investigated. A drop hammer impact test platform was built, and the impact test of C_sf/SiC/Al₂O₃ multiphase ceramics was carried out. The results show that the maximum bending strength and fracture toughness of C_sf/Al₂O₃ composite ceramics and C_sf/SiC/Al₂O₃ composite ceramics are similar, and the maximum bending strength and fracture toughness are 321.78 MPa and 6.98 MPa· m^1/2 when the carbon fiber content is 0.3% and 0.1%, respectively, which are 35% and 45.2% higher than those of pure alumina ceramics. During the drop hammer impact process, the impact resistance of C_sf/SiC/Al₂O₃ composite ceramics increased by 4.15%, and the peak load increased by 10.05%.

Key words: alumina ceramics, carbon fiber, impact resistance, composites

CLC Number:

TB332

WANG Depan, LIANG Sen, ZHOU Yuesong, LIU Long. Study on mechanical properties and impact resistance of short carbon fiber reinforced alumina composite ceramics[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(6): 12-16.

References

[1] 张文毓. 装甲防护陶瓷材料的研究与应用[J]. 陶瓷, 2020(8): 16-20.
[2] 文章苹. 碳纤维表面改性增强SiC陶瓷基复合材料的制备及其性能研究[D]. 上海: 上海应用技术大学, 2019.
[3] 王明超, 张佐光, 孙志杰, 等. 莫来石增强B₄C防弹陶瓷研究[C]//中国力学学会. 第十五届全国复合材料学术会议论文集(上册). 北京: 国防工业出版社, 2008: 226-230.
[4] 刘第强. 短切碳纤维均匀分散增强Al₂O₃基复合材料的制备与性能研究[D]. 太原: 中北大学, 2019.
[5] 曹晶晶, 陈华辉, 杜飞. 助熔剂对原位转化碳纤维增韧陶瓷基复合材料性能的影响[J]. 硅酸盐通报, 2013, 32(3): 389-393, 397.
[6] HUANG S, ZHOU W, PING W, et al. Short-carbon-fiber reinforced alumina ceramic with improved mechanical property and dielectric property in the Ku-band[J]. Physica Status Solidi Applications and Materials, 2013, 210(9): 1944-1949.
[7] ZHU C, CAO F, XIANG Y, et al. Effects of sintering temperature on mechanical properties of alumina fiber reinforced alumina matrix composites[J]. Journal of Sol-Gel Science and Technology, 2020, 93(1): 185-192.
[8] HE P, JIA D, LI Y, et al. Preparation and mechanical performance of ductile C_sf/Al₂O₃-BN composites[J]. Ceramics International, 2016, 42(8): 9821-9829.
[9] 范朝阳. 连续碳纤维增强氧化铝基复合材料的制备与性能研究[D]. 长沙: 国防科学技术大学, 2016.
[10] TANIMOTO Y, NEMOTO K. Effect of sintering temperature on flexural properties of alumina fiber-reinforced, alumina-based ceramics prepared by tape casting technique[J]. Journal of Prosthodontics, 2010, 15(6): 345-352.
[11] LANG Y, ZHAO L, DAI X, et al. Effect of alumina fiber content on pore structure and properties of porous ceramics[J]. International Journal of Applied Ceramic Technology, 2019, 16(2): 35-42.
[12] KAYA C, KAYA F, BOCCACCIAN A R, et al. Fabrication and characterization of Ni-coated carbon fiber-reinforced alumina ceramic matrix composites using electrophoretic deposition[J]. Acta Material, 2001, 49(7): 1189-1197.
[13] TAMURA Y, MALMAL M, GOMEZ D, et al. Spark plasma sintering of fine-grained alumina ceramics reinforced with alumina whiskers[J]. Ceramics International, 2017, 43(1): 658-663.
[14] CHEN H, WANG C, FU Z, et al. Corrosion-erosion behavior and mechanisms of in-situ transformed C_sf/Al₂O₃ composite[J]. Wear, 2017, 376-377: 384-392.
[15] JIANG W, LI K, XIAO J, et al. Effect of silica fiber on the mechanical and chemical behavior of alumina-based ceramic core material[J]. Journal of Asian Ceramic Societies, 2017, 3(1): 68-73.