Jul 27, 2025 Home   |   About Journal   |   Editorial Board   |   Instruction   |   Subscriptions   |   Contacts Us   |   中文
Materials Science and Engineering of Powder Metallurgy  2020, Vol. 25 Issue (2): 133-139    DOI:
Engineering and Technology Current Issue | Archive | Adv Search |
Structure and properties of SiC ceramics prepared by dip cracking method based on oriented porous SiC
HUANG Yujuan, XIONG Huiwen, ZOU Jinzhu, ZHOU Kechao, ZHANG Dou
State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Download: PDF (167523 KB)   HTML (0 KB) 
Export: BibTeX | EndNote (RIS)      
Abstract  The porous SiC scaffolds were prepared by freeze casting, and then the porous scaffolds were impregnated and cracked by liquid polycarbosilane (LPVCS) to prepared SiC ceramics. The effects of the number of immersion cracking cycles on the density, porosity, microstructure and bending strength of SiC flexural were studied. The results show that, the porous SiC scaffolds formed by freeze casting are oriented porous dendrites. The density, porosity and flexural strength of the scaffolds are 0.45 g/cm3, 87.7% and 8.53 MPa, respectively. The density, porosity and flexural strength of SiC composites are 2.08 g/cm3, 5.9%, and 157.43 MPa, respectively. SiC ceramic material with lower density and good flexural strength can be otained by this method.
Key wordsfreeze casting      silicon carbide      polymer impregnation and pyrolysis      porosity      flexural strength     
Received: 08 December 2019      Published: 19 June 2020
ZTFLH:  TB321  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
HUANG Yujuan
XIONG Huiwen
ZOU Jinzhu
ZHOU Kechao
ZHANG Dou
Cite this article:   
HUANG Yujuan,XIONG Huiwen,ZOU Jinzhu, et al. Structure and properties of SiC ceramics prepared by dip cracking method based on oriented porous SiC[J]. Materials Science and Engineering of Powder Metallurgy, 2020, 25(2): 133-139.
URL:  
http://pmbjb.csu.edu.cn/EN/     OR     http://pmbjb.csu.edu.cn/EN/Y2020/V25/I2/133
Copyright © Editorial Board of Materials Science and Engineering of Powder Metallurgy
Tel: 0731-88877163 E-mail: pmbjb@csu.edu.cn
Supported by: Beijing Magtech