Health & Environmental Research Online (HERO)


Print Feedback Export to File
2668241 
Journal Article 
Fabrication of porous silicon carbide ceramics with high porosity and high strength 
Chen, W; Miyamoto, Y 
2014 
Yes 
Journal of the European Ceramic Society
ISSN: 0955-2219 
34 
3 
837-840 
WOS:000329554400031 
Unique porous SiC ceramics with a honeycomb structure were fabricated by a sintering-decarburization process. In this new process, first a SiC ceramic bonded carbon (SiC/CBC) is sintered in vacuum by spark plasma sintering, and then carbon particles in SiC/CBC are volatized by heating in air at 1000 degrees C without shrinkage. The honeycomb structure has at least two different sizes of pores; similar to 20 mu m in size resulting from carbon removal; and smaller open pores of 2.1 mu m remaining in the sintered SiC shell. The total porosity is around 70% and the bulk density is 0.93 mg/m(3). The bending and compressive strengths are 26 MPa, and 105 MPa, respectively. (C) 2013 Elsevier Ltd. All rights reserved. 
Porous ceramics; SiC; Porosity; Strength