| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1522503 | Materials Chemistry and Physics | 2013 | 9 Pages |
Abstract
A zirconium carbide ceramic was hot pressed to full density thanks to the addition of TaSi2, which enabled the densification to occur at 1970Â K and improved the mechanical properties as compared to monolithic ZrC. The microstructure was analysed by combined X-ray diffraction, scanning and transmission electron microscopy to investigate the effective role of the sintering additive. In addition, high temperature oxidation was performed using the reactor REHPTS (Réacteur Hautes Pression et Température Solaire) from 1800 to 2200Â K for 20Â min and this composite demonstrated to resist towards the highly oxidative conditions better than other carbides, thanks to the chemical modification of the oxide formed upon Ta addition. However from 2000Â K, the specimen resulted very damaged.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Laura Silvestroni, Diletta Sciti, Marianne Balat-Pichelin, Ludovic Charpentier,