Journal
CERAMICS INTERNATIONAL
Volume 40, Issue 1, Pages 1829-1834Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.07.084
Keywords
Composites; Mechanical properties; Toughness and toughening; Microstructure
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Funding
- Spanish Ministry of Science and Innovation (MICINN) [MAT2009-14542-C02-01, MAT2012-38645]
- JAE-Pre Programme
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ZrO2-based composites toughened by 5, 10, 15 and 20 vol% lamellar shape Ta metallic particles were made by pressureless sintering. The microstructure and mechanical properties of these novel ceramic metal composites have been studied. With only 15 vol%, the toughness ofZrO(2)-Ta composites was increased from 9.1 of monolithic zirconia to 14 MPa m(1/2) and the average bend strength was 700 MPa. Our results have demonstrated that zirconia transformation and ductile phase toughening concepts can get together to enhance the fracture toughness of zirconia-based materials with high strength. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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