Characterization of grain boundaries in superplastically deformed Y-TZP ceramics

Michel M.R. Boutz; Chu Sheng Chen; Louis Winnubst; Anthonie J. Burggraaf

doi:10.1111/j.1151-2916.1994.tb04654.x

Characterization of grain boundaries in superplastically deformed Y-TZP ceramics

Michel M.R. Boutz, Chu Sheng Chen, Louis Winnubst, Anthonie J. Burggraaf

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Abstract

The effects of compressive deformation on the grain boundary characteristics of fine-grained Y-TZP have been investigated using surface spectroscopy, impedance analysis, and transmission electron microscopy. After sintering at low temperature (1150°C), the grain boundaries are covered by an ultrathin (1nm) yttrium-rich amorphous film. After deformation at 1200°–1300°C under low stress, some grain boundaries are no longer covered by the amorphous film. Yttrium segregation seems to occur only at wetted grain boundaries. Evidence has been found that the extent of dewetting increases with increasing applied stress.

Original language	English
Pages (from-to)	2632-2640
Number of pages	9
Journal	Journal of the American Ceramic Society
Volume	77
Issue number	10
DOIs	https://doi.org/10.1111/j.1151-2916.1994.tb04654.x
Publication status	Published - 1994

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title = "Characterization of grain boundaries in superplastically deformed Y-TZP ceramics",

abstract = "The effects of compressive deformation on the grain boundary characteristics of fine-grained Y-TZP have been investigated using surface spectroscopy, impedance analysis, and transmission electron microscopy. After sintering at low temperature (1150°C), the grain boundaries are covered by an ultrathin (1nm) yttrium-rich amorphous film. After deformation at 1200°–1300°C under low stress, some grain boundaries are no longer covered by the amorphous film. Yttrium segregation seems to occur only at wetted grain boundaries. Evidence has been found that the extent of dewetting increases with increasing applied stress.",

author = "Boutz, {Michel M.R.} and Chen, {Chu Sheng} and Louis Winnubst and Burggraaf, {Anthonie J.}",

year = "1994",

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T1 - Characterization of grain boundaries in superplastically deformed Y-TZP ceramics

AU - Boutz, Michel M.R.

AU - Chen, Chu Sheng

AU - Winnubst, Louis

AU - Burggraaf, Anthonie J.

PY - 1994

Y1 - 1994

N2 - The effects of compressive deformation on the grain boundary characteristics of fine-grained Y-TZP have been investigated using surface spectroscopy, impedance analysis, and transmission electron microscopy. After sintering at low temperature (1150°C), the grain boundaries are covered by an ultrathin (1nm) yttrium-rich amorphous film. After deformation at 1200°–1300°C under low stress, some grain boundaries are no longer covered by the amorphous film. Yttrium segregation seems to occur only at wetted grain boundaries. Evidence has been found that the extent of dewetting increases with increasing applied stress.

AB - The effects of compressive deformation on the grain boundary characteristics of fine-grained Y-TZP have been investigated using surface spectroscopy, impedance analysis, and transmission electron microscopy. After sintering at low temperature (1150°C), the grain boundaries are covered by an ultrathin (1nm) yttrium-rich amorphous film. After deformation at 1200°–1300°C under low stress, some grain boundaries are no longer covered by the amorphous film. Yttrium segregation seems to occur only at wetted grain boundaries. Evidence has been found that the extent of dewetting increases with increasing applied stress.

U2 - 10.1111/j.1151-2916.1994.tb04654.x

DO - 10.1111/j.1151-2916.1994.tb04654.x

M3 - Article

SN - 0002-7820

VL - 77

SP - 2632

EP - 2640

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 10

ER -

Characterization of grain boundaries in superplastically deformed Y-TZP ceramics

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