SYNTHESIS OF ZRC ZRO2 BY PYROLYSIS OF MODIFIED ZIRCONIUM ALKOXIDE PRECURSORS/

Authors
SHAM EL FARFANTORRES EM BRUQUEGAMEZ S RODRIGUEZJIMENEZ JJ
Citation
El. Sham et al., SYNTHESIS OF ZRC ZRO2 BY PYROLYSIS OF MODIFIED ZIRCONIUM ALKOXIDE PRECURSORS/, Solid state ionics, 63-5, 1993, pp. 45-51
Citations number
14
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
63-5
Year of publication
1993
Pages
45 - 51
Database
ISI
SICI code
0167-2738(1993)63-5:<45:SOZZBP>2.0.ZU;2-Z
Abstract
A new route to prepare zirconium carbide preceramic powders has been d eveloped using alkoxides polymerized with polyalcohols. Preceramics we re pyrolized under vacuum to form metal carbides/metal oxide materials . Best carbide yields were obtained using very low heating rates (0.5- degrees-C/min) and reaction time at final temperature higher than 30 m in. An explanation of the possible parameters that govern zirconium ca rbide formation is presented.