Abstract
Glass-like carbon/silica composites were prepared from rice hull and phenolic resin. Monolithic composites were prepared by carbonizing green bodies made from phenolic resin and rice hull in nitrogen atmosphere at temperatures raging from 1173 K to 1773 K. The resultant composites consisted of approximately 70 mass% of glass-like carbon and 30 mass% of silica, the latter being originated from rice hull. The highest compressive strength, bending strength, and fracture toughness were 227 MPa, 50 MPa, and 0.80 MPam1/2, respectively. The composites did not show any detectable hygroscopic expansion upon immersing in water. The mechanical properties were not deteriorated up to 1573 K, as long as the silica maintained its amorphousness.
Similar content being viewed by others
References
Iizuka H, Noguchi T, Shikano S (2003) J Mater Eng Resour 11:10
Iizuka H, Kato G, Igarashi K, Shikano S, Takahashi T (2000) J Soc Mater Sci 49:625 (in Japanese)
Chandrasekhar S, Satyanarayana KG, Pramada PN, Raghavan P, Gupta TN (2003) J Mater Sci 38:3159
Chandrasekhar S, Satyanarayana KG, Pramada PN, Raghavan P, Gupta TN (2002) J Mater Sci Lett. 21:1245
Kumar B, Godkhindi MM (1996) J Mater Sci Lett 15:403
Endo M, Sasaki I, Abe S (1992). Fresenius J Anal Chem 343:366
Acknowledgments
A part of this work was supported by the Collaboration of Innovative Technology and Advanced Research in Evolutional Area, Ministry of Education, Culture, Sports, Science and Technology.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Unuma, H., Niino, K., Sasaki, K. et al. Preparation and characterization of glass-like carbon/silica composites from rice hull and phenolic resin. J Mater Sci 41, 5593–5597 (2006). https://doi.org/10.1007/s10853-006-0281-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-006-0281-7