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Title: Mechanisms of high-temperature creep of fully stabilized zirconia single crystals as a function of the yttria content

Abstract

High-temperature creep behavior of yttria fully stabilized zirconia single crystals with various yttria contents in the interval 9.4 {le} x {le} 21 mol % has been studied. The mechanical data have been collected as a function of both the temperature and the yttria concentration. The creep behavior has been explained in terms of a transition between a dislocation viscous glide and a dislocation climb controlled mechanism, making use of a generalized version of a classical model for alloys proposed by Burton. The yttria concentration dependence of the creep rate has been connected with results on cationic diffusivity, with a possible influence of impurities.

Authors:
; ; ;  [1]
  1. Univ. de Sevilla y C.S.I.C. (Spain). Dept. de Fisica de la Materia Condensada
Publication Date:
Sponsoring Org.:
Comision Interministerial de Ciencia y Tecnologia (Spain)
OSTI Identifier:
529532
Resource Type:
Journal Article
Journal Name:
Journal of the American Ceramic Society
Additional Journal Information:
Journal Volume: 80; Journal Issue: 7; Other Information: DN: Paper presented at the symposium on microstructure-property relations of advanced materials, April 29--30, 1996, Stuttgart (DE); PBD: Jul 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CREEP; ZIRCONIUM OXIDES; YTTRIUM OXIDES; SAMPLE PREPARATION; MONOCRYSTALS; CHEMICAL COMPOSITION; TEMPERATURE RANGE 1000-4000 K; STRAINS; DISLOCATIONS; DATA ANALYSIS

Citation Formats

Gomez-Garcia, D, Martinez-Fernandez, J, Dominguez-Rodriguez, A, and Castaing, J. Mechanisms of high-temperature creep of fully stabilized zirconia single crystals as a function of the yttria content. United States: N. p., 1997. Web. doi:10.1111/j.1151-2916.1997.tb03036.x.
Gomez-Garcia, D, Martinez-Fernandez, J, Dominguez-Rodriguez, A, & Castaing, J. Mechanisms of high-temperature creep of fully stabilized zirconia single crystals as a function of the yttria content. United States. doi:10.1111/j.1151-2916.1997.tb03036.x.
Gomez-Garcia, D, Martinez-Fernandez, J, Dominguez-Rodriguez, A, and Castaing, J. Tue . "Mechanisms of high-temperature creep of fully stabilized zirconia single crystals as a function of the yttria content". United States. doi:10.1111/j.1151-2916.1997.tb03036.x.
@article{osti_529532,
title = {Mechanisms of high-temperature creep of fully stabilized zirconia single crystals as a function of the yttria content},
author = {Gomez-Garcia, D and Martinez-Fernandez, J and Dominguez-Rodriguez, A and Castaing, J},
abstractNote = {High-temperature creep behavior of yttria fully stabilized zirconia single crystals with various yttria contents in the interval 9.4 {le} x {le} 21 mol % has been studied. The mechanical data have been collected as a function of both the temperature and the yttria concentration. The creep behavior has been explained in terms of a transition between a dislocation viscous glide and a dislocation climb controlled mechanism, making use of a generalized version of a classical model for alloys proposed by Burton. The yttria concentration dependence of the creep rate has been connected with results on cationic diffusivity, with a possible influence of impurities.},
doi = {10.1111/j.1151-2916.1997.tb03036.x},
journal = {Journal of the American Ceramic Society},
number = 7,
volume = 80,
place = {United States},
year = {1997},
month = {7}
}