Biomorphic SiC-ceramic prepared by Si-vapor phase infiltration of wood

被引：155

作者：

Vogli, E ^{[1
]}

Sieber, H ^{[1
]}

Greil, P ^{[1
]}

机构：

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

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2002年 / 22卷 / 14-15期

关键词：

biotemplating; mechanical properties; porous ceramics; SiC; Si-vapor infiltration; wood;

D O I：

10.1016/S0955-2219(02)00131-0

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：

The conversion of bioorganie structures like wood or ligninocellulosic fibers into porous microcellular SiC-ceramics is a novel manufacturing technology. Coniferous wood (pine) was transformed by high-temperature pyrolysis into carbon preforms and subsequently converted into biomorphic SiC-ceramics by Si-vapor infiltration under inert atmosphere. The morphology of the initial wood structure is retained. The infiltration of the Si-vapor phase into the CB-template and the kinetics of the SiC-formation were investigated. The amount of residual carbon was determined by means of mass balance calculation. The macroscopical properties of the final SiC-ceramics were characterized by porosity and mechanical property measurements. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：2663 / 2668

页数：6

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