Abstract
Herein, the densification behavior of zirconia ceramics via hot oscillating pressing (HOP) is investigated. The densification curves are obtained under various pressures and temperatures. Compared with hot pressing (HP), HOP can increase the final density and densification rate of the material. The stress exponent (n) and activation energy (Q) are estimated by applying a modified hot pressing kinetic equation and found to be 1 and 331.4 kJ/mol, respectively. These values suggest that the densification mechanism of zirconia ceramics via HOP in the relative density <90% is grain boundary sliding, which is accommodated by the grain boundary diffusion of Zr4+ cations. This work advances the understanding of densification mechanism of HOP.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
