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Higher fracture toughness of tetragonal zirconia ceramics through nanocrystalline structure

SYSNO ASEP	0328358
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Higher fracture toughness of tetragonal zirconia ceramics through nanocrystalline structure
Title	Vyšší lomová houževnatost tetragonální zirkoniové keramiky díky nanokrystalické struktuře
Author(s)	Trunec, M. (CZ) Chlup, Zdeněk (UFM-A)_{RID, ORCID}
Number of authors	2
Source Title	Scripta Materialia. - : Elsevier - ISSN 1359-6462 Roč. 61, č. 1 (2009), s. 56-59
Number of pages	4 s.
Language	eng - English
Country	US - United States
Keywords	zirconia ; nanocrystalline materials ; coarsening ; toughness ; martensitic phase transformation
Subject RIV	JH - Ceramics, Fire-Resistant Materials and Glass
R&D Projects	IAA200410502 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z20410507 - UFM-A (2005-2011)
UT WOS	000266225100015
DOI	10.1016/j.scriptamat.2009.03.019
Annotation	Fracture toughness of nanocrystalline zirconia ceramic stabilized with 1.5 mol.% Y2O3 was measured and compared with fracture toughness of submicrometer-grained zirconia ceramics stabilized with 3 mol.% Y2O3. It was found that nanocrystalline ceramics demonstrated higher fracture toughness than submicrometer-grained zirconia ceramics with both optimized and common grain sizes. The high fracture toughness of nanocrystalline zirconia was confirmed by two different testing methods: indentation method (15.5 MPa m0.5) and chevron notched beam method (7.9 MPa m0.5).
Workplace	Institute of Physics of Materials
Contact	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Year of Publishing	2010

Number of the records: 1