Article ID Journal Published Year Pages File Type
1448445 Acta Materialia 2009 9 Pages PDF
Abstract

Young’s modulus and hardness were determined by depth sensing indentation in plasma sprayed Al2O3–13% TiO2 nanocoatings. Results were compared to conventional coatings and the relevance of the nanostructure was analyzed. An indentation size effect was observed. Data provided by indentation tests at different maximum loads were used to estimate size-independent hardness and elastic modulus. Enhanced properties were observed in the nanostructured coating compared to the conventional one. Partially melted zones in the nanocoating, which act as reinforcements in the ceramic matrix composite, are likely responsible for the enhancement.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
Authors
, , , ,