Porous ceramics prepared by mimicking silicified wood
Open Access
- 31 January 2005
- journal article
- Published by Taylor & Francis Ltd in Science and Technology of Advanced Materials
- Vol. 6 (1), 76-83
- https://doi.org/10.1016/j.stam.2004.08.004
Abstract
Porous titania, alumina and zirconia ceramic woods with wood-like microstructures, analogous to that of silicified wood, were prepared from natural woods as templates. The production of these ceramic woods was performed by the following process: (1) infiltration of metal alkoxide into wood specimens, (2) hydrolysis of the alkoxide in the cell structure to form titania, alumina or zirconia gels, (3) firing in air to form titania, alumina or zirconia ceramic woods. The resulting titania, alumina and zirconia ceramic woods were studied by means of an X-ray diffractometer, a mercury porosimeter and a scanning electron microscope. The microstructure of these ceramic woods retained the same structure as that of the raw wood: with the pore sizes corresponding to those of the original wood, and the major pores being unidirectionally connected.Keywords
This publication has 7 references indexed in Scilit:
- Preparation of SiC Ceramics from CharcoalJournal of the Society of Materials Science, Japan, 2003
- Manufacturing of Porous Oxide Ceramics by Replication of Plant MorphologiesKey Engineering Materials, 2001
- Conversion of Oak to Cellular Silicon Carbide Ceramic by Gas‐Phase Reaction with Silicon MonoxideJournal of the American Ceramic Society, 2001
- Porous Titania Ceramic Prepared by Mimicking Silicified WoodJournal of the American Ceramic Society, 2000
- Silicon/Silicon Carbide Composites Fabricated by Infiltration of a Silicon Melt into CharcoalJournal of the American Ceramic Society, 1999
- Biomimetic Process for Producing SiC “Wood”Journal of the American Ceramic Society, 1995
- Composite electroceramicsFerroelectrics, 1986