Sintering and ionic conductivity of CuO-doped tetragonal ZrO2 prepared by novel colloidal processing

Yoshio Sakka; Tohru S. Suzuki; Kiyoshi Ozawa; Tetsuo Uchikoshi; Keijiro Hiraga

doi:10.2109/jcersj.109.1276_1004

Sintering and ionic conductivity of CuO-doped tetragonal ZrO₂ prepared by novel colloidal processing

Yoshio Sakka^*, Tohru S. Suzuki, Kiyoshi Ozawa, Tetsuo Uchikoshi, Keijiro Hiraga

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

Suspensions of Cu²⁺ adsorbed tetragonal ZrO₂ (3Y-TZ: 3 mol%Y₂O₃-doped tetragonal zirconia) powder were prepared and their green bodies consolidated without powdering process by a pressure filtration method. Green bodies with a narrow pore size distribution were obtained after cold isostatic pressing of the pressure filtrated bodies. Small amounts of CuO addition resulted in lower densification temperature by the aid of a liquid phase. Bulk and grain-boundary conductivities were measured by a complex impedance method. Bulk conductivity was nearly independent of CuO addition but grain-boundary conductivity decreased with CuO addition.

Original language	English
Pages (from-to)	1004-1009
Number of pages	6
Journal	Journal of the Ceramic Society of Japan
Volume	109
Issue number	1276
DOIs	https://doi.org/10.2109/jcersj.109.1276_1004
Publication status	Published - 2001 Dec
Externally published	Yes

Keywords

Colloidal processing
CuO-doped
Ionic conductivity
Sintering
Zirconia

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.2109/jcersj.109.1276_1004

Cite this

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title = "Sintering and ionic conductivity of CuO-doped tetragonal ZrO2 prepared by novel colloidal processing",

abstract = "Suspensions of Cu2+ adsorbed tetragonal ZrO2 (3Y-TZ: 3 mol%Y2O3-doped tetragonal zirconia) powder were prepared and their green bodies consolidated without powdering process by a pressure filtration method. Green bodies with a narrow pore size distribution were obtained after cold isostatic pressing of the pressure filtrated bodies. Small amounts of CuO addition resulted in lower densification temperature by the aid of a liquid phase. Bulk and grain-boundary conductivities were measured by a complex impedance method. Bulk conductivity was nearly independent of CuO addition but grain-boundary conductivity decreased with CuO addition.",

keywords = "Colloidal processing, CuO-doped, Ionic conductivity, Sintering, Zirconia",

author = "Yoshio Sakka and Suzuki, {Tohru S.} and Kiyoshi Ozawa and Tetsuo Uchikoshi and Keijiro Hiraga",

year = "2001",

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journal = "Journal of the Ceramic Society of Japan",

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T1 - Sintering and ionic conductivity of CuO-doped tetragonal ZrO2 prepared by novel colloidal processing

AU - Sakka, Yoshio

AU - Suzuki, Tohru S.

AU - Ozawa, Kiyoshi

AU - Uchikoshi, Tetsuo

AU - Hiraga, Keijiro

PY - 2001/12

Y1 - 2001/12

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AB - Suspensions of Cu2+ adsorbed tetragonal ZrO2 (3Y-TZ: 3 mol%Y2O3-doped tetragonal zirconia) powder were prepared and their green bodies consolidated without powdering process by a pressure filtration method. Green bodies with a narrow pore size distribution were obtained after cold isostatic pressing of the pressure filtrated bodies. Small amounts of CuO addition resulted in lower densification temperature by the aid of a liquid phase. Bulk and grain-boundary conductivities were measured by a complex impedance method. Bulk conductivity was nearly independent of CuO addition but grain-boundary conductivity decreased with CuO addition.

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KW - Ionic conductivity

KW - Sintering

KW - Zirconia

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