Sintering and Mechanical Properties of ZrB2-TaSi2 and HfB2-TaSi2 Ceramic Composites

• Published in: Journal of the American Ceramic Society Vol. 91; no. 10; pp. 3285 - 3291
• Main Authors: Sciti, Diletta, Silvestroni, Laura, Celotti, Giancarlo, Melandri, Cesare, Guicciardi, Stefano
• Format: Journal Article
• Language: English
• Published: Malden, USA Blackwell Publishing Inc 01.10.2008

Fully dense fine‐grained ZrB2‐ and HfB2‐based composites contaning 15 vol% TaSi2 were produced by hot pressing at 1850°–1900°C. Gas formation and mass loss, which occurred during sintering in both systems, were in agreement with thermodynamic predictions. In both composites, the presence of a solid...