Influence of WC particles on the microstructural and mechanical properties of 3 mol% Y2O3 stabilized ZrO2 matrix composites produced by hot pressing


Uenal N., KERN F., Öveçoğlu M. L. , GADOW R.

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, vol.31, no.13, pp.2267-2275, 2011 (SCI-Expanded) identifier identifier

Abstract

Yttria stabilized polycrystalline tetragonal zirconia (Y-TZP)-tungsten carbide (WC) composites were fabricated by hot pressing. Yttria (Y2O3) stabilizer content was kept at 3 mol% to ensure the phase structure of the Y-TZP composites to be tetragonal. To increase the moderate hardness of the 3 mol% Y2O3 added TZP structure, hard WC particles were added with various proportions up to 40 vol%. The TZP/WC composites were sintered at different sintering temperatures between 1450 and 1550 degrees C.