Conversion of oak to cellular silicon carbide ceramic by gas-phase reaction with silicon monoxide

被引：0

作者：

Vogli, E ^{[1
]}

Mukerji, J ^{[1
]}

Hoffman, C ^{[1
]}

Kladny, R ^{[1
]}

Sieber, H ^{[1
]}

Greil, P ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Dept Mat Sci, D-91058 Erlangen, Germany

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2001年 / 84卷 / 06期

关键词：

D O I：

暂无

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Oak has been converted to a porous biocarbon template by annealing in an inert atmosphere above 800 degreesC, Subsequent infiltration with gaseous SiO at 1550-1600 degreesC under flowing argon of atmospheric pressure finally resulted in the formation of a porous, cellular beta -SiC ceramic. The conversion retains the biomorphic cellular morphology of oak tissue. While pores in the cell walls with a diameter less than similar to1 mum vanished, two distinct pore channel maxima representing tracheidal cells and large vessels remained in the SiC ceramic. Depending on the cellular morphology of different kinds of wood, e,g,, strut thickness and pore size distribution, gas-phase conversion to single-phase beta -SiC can be used to manufacture cellular ceramics with a wide range of pore channel diameters.

引用

页码：1236 / 1240

页数：5

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