Paper derived biomorphic porous titanium carbide and titanium oxide ceramics produced by chemical vapor infiltration and reaction (CVI-R)
In: Journal of the European Ceramic Society, Jg. 25 (2005-03-01), Heft 6, S. 829-836
academicJournal
Zugriff:
Chemical vapor infiltration (CVI) is used for producing biomorphic porous TiC ceramics derived from paper. The paper samples are first carbonized in inert atmosphere to yield biocarbon template structures (Cb-template). Subsequently, three routes for converting the Cb-templates into TiC ceramics are studied. The first route includes CVI with TiCl4-H2. The effect of methane as additional carbon source is investigated on the second route (TiCl4-H2-CH4). Finally, a two step CVI process (Route 3), first TiCl4-H2 and subsequent TiCl4-H2-CH4, is performed in order to improve both the grade of conversion of the Cb-template into TiC and the mechanical properties of the resulting porous TiC ceramics. Furthermore, porous TiO2 ceramics are produced by high temperature oxidation of the TiC ceramics in air flow. [Copyright &y& Elsevier]
Titel: |
Paper derived biomorphic porous titanium carbide and titanium oxide ceramics produced by chemical vapor infiltration and reaction (CVI-R)
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Autor/in / Beteiligte Person: | Popovska, Nadja ; Streitwieser, Daniela Almeida ; Xu, Chen ; Gerhard, Helmut |
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Zeitschrift: | Journal of the European Ceramic Society, Jg. 25 (2005-03-01), Heft 6, S. 829-836 |
Veröffentlichung: | 2005 |
Medientyp: | academicJournal |
ISSN: | 0955-2219 (print) |
DOI: | 10.1016/j.jeurceramsoc.2004.04.007 |
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