Stress distribution in biomorphous SiC-ceramics under radial tensile loading

Fey, Tobias; Sieber, H.; Greil, Peter

doi:10.1016/j.jeurceramsoc.2004.05.008

Cited by 14 publications

(1 citation statement)

References 22 publications

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“…Sacrificial templating (also referred to as moulding or direct infiltration) is a substitution based synthesis procedure whose aim is to produce (ceramic) materials pseudomorphous to the micro-, meso-and macrostructures of the original template. [1][2][3][4][5] In contrast to reactive infiltration, during sacrificial templating infiltration of the ceramic precursor occurs before pyrolysis of the template. This consequently reduces the temperature at which processing is undertaken.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of porous silicon carbide from cellulose fibre templates infiltrated with polycarbosilane

Harris

Maddocks

2010

Materials Science and Technology

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Amorphous silicon carbide (SiC) with a stable porous structure was synthesised using a cellulose fibre preform (ash less filter paper) infiltrated with poly(methyl-carbosilane) and heated to 1000°C, first under N2 and then air. Scanning electron microscopy and Hg porosimetry confirmed the structure and porosity of the preform was largely reproduced in the final material; the porosity of the untreated template (72·4%) decreased following pyrolysis (58·1%) and then increased after treatment in air (80·0%). The SiC yield, inferred from thermogravimetric analysis of the infiltrated template, was linearly correlated with the number of infiltration steps and ranged between 3 and 21 wt-% for one and five infiltrations respectively.

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