Recombinant domain movement mechanism in superplastic deformation of TZP ceramics

Kouichi Yasuda; Taku Okamoto; Tadashi Shiota; Yohtaro Matsuo

doi:10.1016/j.msea.2005.11.034

Recombinant domain movement mechanism in superplastic deformation of TZP ceramics

Kouichi Yasuda, Taku Okamoto, Tadashi Shiota, Yohtaro Matsuo

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

High-temperature tensile tests were repeatedly carried out for a tetragonal zirconia polycrystals (TZP) specimen, and the position vectors of 500 grains were measured by FE-SEM image analysis. The displacement vector map showed that several grains moved to the same direction and a kind of domain was formed; these domains (several micrometer in size) moved in the sea of randomly moving grains; however, these domains were soon constrained by the surrounding sea and disappeared; subsequently, new domains were formed in other places by re-combination of grains in order to continue superplastic deformation. Based on these phenomena, the authors proposed a new deformation mechanism called "Recombinant Domain Movement" in this paper.

Original language	English
Pages (from-to)	115-119
Number of pages	5
Journal	Materials Science and Engineering A
Volume	418
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2005.11.034
Publication status	Published - Feb 25 2006
Externally published	Yes

Keywords

Deformation mechanism
Domain
Superplasticity
TZP

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2005.11.034

Cite this

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title = "Recombinant domain movement mechanism in superplastic deformation of TZP ceramics",

abstract = "High-temperature tensile tests were repeatedly carried out for a tetragonal zirconia polycrystals (TZP) specimen, and the position vectors of 500 grains were measured by FE-SEM image analysis. The displacement vector map showed that several grains moved to the same direction and a kind of domain was formed; these domains (several micrometer in size) moved in the sea of randomly moving grains; however, these domains were soon constrained by the surrounding sea and disappeared; subsequently, new domains were formed in other places by re-combination of grains in order to continue superplastic deformation. Based on these phenomena, the authors proposed a new deformation mechanism called {"}Recombinant Domain Movement{"} in this paper.",

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T1 - Recombinant domain movement mechanism in superplastic deformation of TZP ceramics

AU - Yasuda, Kouichi

AU - Okamoto, Taku

AU - Shiota, Tadashi

AU - Matsuo, Yohtaro

PY - 2006/2/25

Y1 - 2006/2/25

N2 - High-temperature tensile tests were repeatedly carried out for a tetragonal zirconia polycrystals (TZP) specimen, and the position vectors of 500 grains were measured by FE-SEM image analysis. The displacement vector map showed that several grains moved to the same direction and a kind of domain was formed; these domains (several micrometer in size) moved in the sea of randomly moving grains; however, these domains were soon constrained by the surrounding sea and disappeared; subsequently, new domains were formed in other places by re-combination of grains in order to continue superplastic deformation. Based on these phenomena, the authors proposed a new deformation mechanism called "Recombinant Domain Movement" in this paper.

AB - High-temperature tensile tests were repeatedly carried out for a tetragonal zirconia polycrystals (TZP) specimen, and the position vectors of 500 grains were measured by FE-SEM image analysis. The displacement vector map showed that several grains moved to the same direction and a kind of domain was formed; these domains (several micrometer in size) moved in the sea of randomly moving grains; however, these domains were soon constrained by the surrounding sea and disappeared; subsequently, new domains were formed in other places by re-combination of grains in order to continue superplastic deformation. Based on these phenomena, the authors proposed a new deformation mechanism called "Recombinant Domain Movement" in this paper.

KW - Deformation mechanism

KW - Domain

KW - Superplasticity

KW - TZP

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JO - Materials Science and Engineering A

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Recombinant domain movement mechanism in superplastic deformation of TZP ceramics

Abstract

Keywords

ASJC Scopus subject areas

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