Hot Pressing Sintering Process of 2Si-B-3C-N Ceramic
ZHANG Pengfei1, XU Panpan1, YU Renhong1, JIA Dechang2, YANG Zhihua2
1 School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023 2 Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin 150001
Abstract: In the current research, nano 2Si-B-3C-N ceramics were prepared by the hot pressing technique. Employing the methods of XRD, SEM and TEM, careful investigation was carried out on the effect of hot pressing parameters on the microstructure and properties of the prepared ceramics. Results show that, the sintering temperature and pressure has important influence on the structure and properties of the 2Si-B-3C-N ceramic, while the holding time and gas pressure has little effect. When the temperature, pressure, holding time and gas pressure are designed as 1 900 ℃and 80 MPa,respectively, the prepared ceramic has larger density and mechanical properties. And the relative density, bending strength, elastic modulus, fracture toughness and Vickers hardness of the prepared ceramic is about 88.7%, 331.1 MPa, 139.4 GPa, 2.8 MPa·m1/2 and 5.7 GPa, respectively. While the temperature is decreased to 1 800 ℃ or the pressure is reduced to 50 MPa, the density and mechanical properties of the prepared ceramic are significantly decreased. The elevated temperature and pressure will facilitate the deformation, sliding and rearrangement of the ceramic particles, as well as accelerate the atomic diffusion, and hence promote the sintering and property improvement of the ceramic.
Colombo P, Mera G, Riedel R, et al. Journal of the American Ceramic Society, 2010, 93(7), 1805.
[2]
Jia D, Liang B, Yang Z, et al. Progress in Materials Science, 2018, 98, 1.
[3]
Weinmann M, Kamphowe T W, Schuhmacher J, et al. Chemistry of Materials, 2000, 12(8), 2112.
[4]
Schmidt H, Borchardt G, Weber S, et al. Journal of Non-Crystalline So-lids, 2002, 298(2-3), 232.
[5]
Tang Y, Wang J, Li X D, et al. Ceramics International, 2009, 35(7), 2871.
[6]
Tavakoli A H, Gerstel P, Golczewski J A, et al. Journal of Materials Research, 2011, 26(4), 600.
[7]
Kumar R, Cai Y, Gerstel P, et al. Journal of Materials Science, 2006, 41(21), 7088.
[8]
Riedel R, Kienzle A, Dressler W, et al. Nature, 1996, 382(6594), 796.
[9]
Wang Z C, Aldinger F, Riedel R. Journal of the American Ceramic Society, 2001, 84(10), 2179.
[10]
Christ M, Thurn G, Weinmann M, et al. Journal of the American Cera-mic Society, 2000, 83(12), 3025.
[11]
Kumar N V R, Prinz S, Cai Y, et al. Acta Materialia, 2005, 53(17), 4567.
[12]
Riedel R, Ruswisch L M, An L N, et al. Journal of the American Cera-mic Society, 1998, 81(12), 3341.
[13]
Weinmann M, Schuhmacher J, Kummer H, et al. Chemistry of Mate-rials, 2000, 12(3), 623.
[14]
Zhang P, Jia D, Yang Z, et al. Journal of Materials Science, 2012, 47(20), 1.
[15]
Schmidt H. Soft Materials, 2006, 4(2-4), 143.
[16]
Janakiraman N, Zern A, Weinmann M, et al. Journal of the European Ceramic Society, 2005, 25(4), 509.
[17]
Haberecht J, Nesper R, Grutzmacher H. Chemistry of Materials, 2005, 17(9), 2340.
[18]
Muller A, Gerstel P, Weinmann M, et al. Chemistry of Materials, 2002, 14(8), 3398.
[19]
Vlcek J, Potocky T, Cizek J, et al. Journal of Vacuum Science & Technology A, 2005, 23(6), 1513.
[20]
Vijayakumar A, Todi R M, Warren A P, et al. Diamond and Related Materials, 2008, 17(6), 944.
[21]
Shao G, Feng L, Ma C, et al. Journal of the American Ceramic Society, 2017, 100, 842.
[22]
Zhang P, Jia D, Yang Z, et al. Journal of Advanced Ceramics, 2012, 1(3), 157.
[23]
Zhang P, Jia D, Yang Z, et al. Journal of Alloys and Compounds, 2012, 537, 346.
[24]
Yang Z H, Zhou Y, Ha D C, et al. Materials Science and Engineering A, 2008, 489(1-2), 187.
[25]
Yang Z H. Microstructure and high-temperature properties of the Si-B-C-N MA-powders and ceramics. Ph.D. Thesis, Harbin Institute of Techno-logy, China, 2008(in Chinese).杨治华. Si-B-C-N机械合金化粉末及陶瓷的组织结构与高温性能. 博士学位论文,哈尔滨工业大学, 2008.
[26]
Zhang P, Jia D, Yang Z, et al. Ceramics International, 2012, 38(8), 6399.
[27]
Seifert H J, Peng J Q, Golczewski J, et al. Applied Organometallic Che-mistry, 2001, 15(10), 794.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2019, Vol. 33 
