Cavitation-erosion of 3Y-TZPs obtained at different sintering
temperatures
Materia
materiales
Título
Cavitation-erosion of 3Y-TZPs obtained at different sintering
temperatures
temperatures
Descripción
The cavitation-erosion resistance of tetragonal zirconia polycrystals with 3 mol% Y2O3 (3Y-TZPs) has been studied in specimens sintered in the temperature range from 1500 to 1590 ºC. The study presents mass loss measurements after exposure to ultrasonic cavitation in conjunction with X-ray diffraction oriented to identify the ratio between tetragonal and monoclinic phases and the evolution of compressive residual stresses resulting from the phase transformation induced in a cavitating medium. The results showed an outstanding performance under cavitation of all tested 3Y-TZPs. This behaviour was attributed to compressive residual stresses of up to 300 MPa produced as a consequence of the volume change associated with the tetragonal-monoclinic phase transformation. The study did not reveal significant cavitation resistance differences between specimens sintered at different temperatures in the range 1500-1590 ºC.
Identificador
cavitation-erosion, zirconia, sintering temperature, X-ray
diffraction, residual stress
diffraction, residual stress
Fuente
Wear 300 (2013) 163–168
Tipo
articulo científico en revista SCI
Autor
Jorge Stella, Thierry Poirier, Michael Pohl
Editor
Elsevier
Fecha
2015
Idioma
inglés
Productor
Jorge Stella, Thierry Poirier, Michael Pohl