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http://dx.doi.org/10.4191/KCERS.2008.45.5.285

Effect of Si:C Ratio on Porosity and Flexural Strength of Porous Self-Bonded Silicon Carbide Ceramics  

Lim, Kwang-Young (Department of Materials Science and Engineering, the University of Seoul)
Kim, Young-Wook (Department of Materials Science and Engineering, the University of Seoul)
Woo, Sang-Kuk (Energy Materials Research Center, Korea Institute of Energy Research)
Han, In-Sub (Energy Materials Research Center, Korea Institute of Energy Research)
Publication Information
Journal of the Korean Ceramic Society / v.45, no.5, 2008 , pp. 285-289 More about this Journal
Abstract
Porous self-bonded silicon carbide (SiC) ceramics were fabricated at temperatures ranging from 1750 to $1850^{\circ}C$ using SiC, silicon (Si), and carbon (C) powders as starting materials. The effect of the Si:C ratio on porosity and strength was investigated as a function of sintering temperature. It was possible to produce self-bonded SiC ceramics with porosities ranging from 36% to 43%. The porous ceramics showed a maximal porosity when the Si:C ratio was 2:1 regardless of the sintering temperature. In contrast, the maximum strength was obtained when the ratio was 5:1.
Keywords
Porous ceramics; Silicon carbide; Self-bonded SiC; Porosity; Strength;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
Times Cited By SCOPUS : 4
연도 인용수 순위
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