Relationships of tetragonal precipitate statistics with bulk properties in magnesia-partially stabilized zirconia

Montross C.S. (1993) Relationships of tetragonal precipitate statistics with bulk properties in magnesia-partially stabilized zirconia. Journal of the European Ceramic Society, 11 5: 471-480. doi:10.1016/0955-2219(93)90024-L


Author Montross C.S.
Title Relationships of tetragonal precipitate statistics with bulk properties in magnesia-partially stabilized zirconia
Journal name Journal of the European Ceramic Society   Check publisher's open access policy
ISSN 0955-2219
Publication date 1993
Sub-type Article (original research)
DOI 10.1016/0955-2219(93)90024-L
Volume 11
Issue 5
Start page 471
End page 480
Total pages 10
Subject 2503 Ceramics and Composites
Abstract The toughness of magnesia-partially stabilized zirconia (Mg-PSZ) is controlled by metastable tetragonal precipitates that interact with crack tip stress fields. Understanding and controlling the precipitate size controls the resulting properties. The precipitate growth behaviour of Mg-PSZ (9·5 mol% MgO) samples was studied after an experimental regime of sintering, rapid quenching and isothermal aging at 1400°C and 1320°C. Average precipitate size on polished and etched samples was measured by SEM for each processing time and temperature. Precipitate sizes, precipitate population statistics, phase content of transformable tetragonal phase and fracture toughness are plotted and optimum precipitate sizes for maximum toughness are identified. Relationships between experimental results and martensitic theories are discussed. The precipitate population distributions did not follow those predicted by Lifshitz-Slyozov-Wagner-based theories.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Created: Tue, 14 Jun 2016, 06:23:16 EST by System User