Reliability of Zirconia Based Composites

Abstract

The paper summarises the results of investigation on two different composite systems with a TZP matrix: one containing tungsten carbide particles and the other -metallic tungsten grains. Composites powders were manufactured by simple mixing of constituent phases in an attritor mill and subsequently hot-pressed. Microscopic observations of sintered bodies showed that microstructures of the composites were different. Selected mechanical parameters (including of the Weibull modulus) were determined.