Porous ceramics derived from wood

被引：17

作者：

Vogt, U ^{[1
]}

Herzog, A ^{[1
]}

Graule, T ^{[1
]}

Klingner, R ^{[1
]}

Zimmermann, T ^{[1
]}

机构：

[1] EMPA, Swiss Fed Labs Mat Testing & Res, Dept High Performance Ceram, CH-8600 Dubendorf, Switzerland

来源：

EURO CERAMICS VII, PT 1-3 | 2002年 / 206-2卷

关键词：

biomimetic; sol; infiltration; carbothermal reaction; porosity; SiC; wood;

D O I：

10.4028/www.scientific.net/KEM.206-213.1941

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：

Beech and pine were pyrolysed at different temperatures in natural state and after SiO2-sol infiltration. Correlation of weight change, porosity and density on pre-treatment were determined and optimised to obtain carbon templates with high porosity. The SiO2-infiltration was examined with the aim of a perfect fill-up of cell walls. The infiltration process was not influenced by the type of sol but showed a strong dependence from pyrolysis pre-treatment. The templates were transformed by a carbothermal reaction into SiC by preserving the high anisotropic porosity.

引用

页码：1941 / 1944

页数：4

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