Correlations between flaw tolerance and reliability in zirconia

Correlations between flaw tolerance and reliability in zirconia

Interrelations between flaw tolerance and reliability in Y-TZP, Ce-TZP and Mg-PSZ ceramics are investigated. Indentation-strength tests indicate an enhanced flaw tolerance with increasing R-curve behaviour from tetragonal to monoclinic transformation. The Weibull modulus of unindented specimens incr...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials science Vol. 28; no. 24; pp. 6748 - 6752
Main Authors: READEY, M. J, MCCALLEN, C. L, MCNAMARA, P. D, LAWN, B. R
Format: Journal Article
Language:English
Published: Heidelberg Springer 01-01-1993
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Technical ceramics
Tetragonal lattices
Magnesium oxide
Polycrystal
Mechanical properties
Stabilized zirconia
Cerium oxide
Experimental study
Indentation
Oxide ceramics
Structural ceramic
Zirconium oxide
Defect
Yttrium oxide
Reliability
Weibull distribution
Microstructure
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Interrelations between flaw tolerance and reliability in Y-TZP, Ce-TZP and Mg-PSZ ceramics are investigated. Indentation-strength tests indicate an enhanced flaw tolerance with increasing R-curve behaviour from tetragonal to monoclinic transformation. The Weibull modulus of unindented specimens increases with the enhanced tolerance. However, even the most tolerant zirconias show persistent scatter in strength, implying that variability in material microstructure may be as important as variability in flaw size in reliability evaluation of these materials. 28 refs.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-2461
1573-4803
DOI:10.1007/bf00356426