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Cavitation-erosion of 3Y-TZPs obtained at different sintering
temperatures

Materia

materiales

Título

Cavitation-erosion of 3Y-TZPs obtained at different sintering
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

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

Archivos

Citación

Jorge Stella, Thierry Poirier, Michael Pohl, “Cavitation-erosion of 3Y-TZPs obtained at different sintering temperatures,” esopo.usb.ve, consulta 24 de mayo de 2017, http://esopo.usb.ve/items/show/62.