Impedance spectroscopic estimation of intergranular-phase distribution in CaO · 2SiO2- Or SiO2-in-diffiised 8 mol%-yttria-stabilized zirconia

Young Soo Jung; Jung Hae Choi; Jong Heun Lee; Je Hun Lee; Doh Yeon Kim

doi:10.1016/j.ssi.2004.09.065

Impedance spectroscopic estimation of intergranular-phase distribution in CaO · 2SiO₂- Or SiO₂-in-diffiised 8 mol%-yttria-stabilized zirconia

Young Soo Jung, Jung Hae Choi, Jong Heun Lee, Je Hun Lee, Doh Yeon Kim

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

The grain-boundary resistivity of CaO · 2SiO ₂-in-diffused 8 mol%-yttria-stabilized zirconia (8YSZ-CS) or SiO ₂-in-diffused 8 mol%-yttria-stabilized zirconia (8YSZ-S) was determined by local impedance spectroscopy using submillimeter-scale electrodes. During sintering, a liquid formed at the top of the 8YSZ penetrates or diffuses into the 8YSZ interior. For CaO · 2SiO₂-in-diffused 8YSZ, the grain-boundary resistivity of the specimen surface was observed to be 150 times greater than that of the interior, and grain growth was enhanced near the surface region. In contrast, for SiO₂-in-diffused 8YSZ, the near-top surface region did not show enhanced grain growth and its grain-boundary resistivity was only nine times higher than that of the specimen interior.

Original language	English
Pages (from-to)	123-127
Number of pages	5
Journal	Solid State Ionics
Volume	175
Issue number	1-4
DOIs	https://doi.org/10.1016/j.ssi.2004.09.065
Publication status	Published - 2004 Nov 30
Event	Fourteenth International Conference on Solid State Ionics - Monterey, CA., United States Duration: 2003 Jun 22 → 2003 Jun 27

Bibliographical note

Funding Information:
The Work is supported by the Creative Research Initiatives of the Korean Ministry of Science and Technology.

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Keywords

CaO · 2SiO-in-diffused 8YSZ
Distribution of siliceous segregation
Grain-boundary resistivity
O -in-diffused 8YSZ
Si
Sintering

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/j.ssi.2004.09.065

Cite this

@article{87a82d4657124ff99c57311e90ca3c19,

title = "Impedance spectroscopic estimation of intergranular-phase distribution in CaO · 2SiO2- Or SiO2-in-diffiised 8 mol%-yttria-stabilized zirconia",

abstract = "The grain-boundary resistivity of CaO · 2SiO 2-in-diffused 8 mol%-yttria-stabilized zirconia (8YSZ-CS) or SiO 2-in-diffused 8 mol%-yttria-stabilized zirconia (8YSZ-S) was determined by local impedance spectroscopy using submillimeter-scale electrodes. During sintering, a liquid formed at the top of the 8YSZ penetrates or diffuses into the 8YSZ interior. For CaO · 2SiO2-in-diffused 8YSZ, the grain-boundary resistivity of the specimen surface was observed to be 150 times greater than that of the interior, and grain growth was enhanced near the surface region. In contrast, for SiO2-in-diffused 8YSZ, the near-top surface region did not show enhanced grain growth and its grain-boundary resistivity was only nine times higher than that of the specimen interior.",

keywords = "CaO · 2SiO-in-diffused 8YSZ, Distribution of siliceous segregation, Grain-boundary resistivity, O -in-diffused 8YSZ, Si, Sintering",

author = "Jung, {Young Soo} and Choi, {Jung Hae} and Lee, {Jong Heun} and Lee, {Je Hun} and Kim, {Doh Yeon}",

note = "Funding Information: The Work is supported by the Creative Research Initiatives of the Korean Ministry of Science and Technology. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.; Fourteenth International Conference on Solid State Ionics ; Conference date: 22-06-2003 Through 27-06-2003",

year = "2004",

month = nov,

day = "30",

doi = "10.1016/j.ssi.2004.09.065",

language = "English",

volume = "175",

pages = "123--127",

journal = "Solid State Ionics",

issn = "0167-2738",

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number = "1-4",

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T1 - Impedance spectroscopic estimation of intergranular-phase distribution in CaO · 2SiO2- Or SiO2-in-diffiised 8 mol%-yttria-stabilized zirconia

AU - Jung, Young Soo

AU - Choi, Jung Hae

AU - Lee, Jong Heun

AU - Lee, Je Hun

AU - Kim, Doh Yeon

PY - 2004/11/30

Y1 - 2004/11/30

N2 - The grain-boundary resistivity of CaO · 2SiO 2-in-diffused 8 mol%-yttria-stabilized zirconia (8YSZ-CS) or SiO 2-in-diffused 8 mol%-yttria-stabilized zirconia (8YSZ-S) was determined by local impedance spectroscopy using submillimeter-scale electrodes. During sintering, a liquid formed at the top of the 8YSZ penetrates or diffuses into the 8YSZ interior. For CaO · 2SiO2-in-diffused 8YSZ, the grain-boundary resistivity of the specimen surface was observed to be 150 times greater than that of the interior, and grain growth was enhanced near the surface region. In contrast, for SiO2-in-diffused 8YSZ, the near-top surface region did not show enhanced grain growth and its grain-boundary resistivity was only nine times higher than that of the specimen interior.

AB - The grain-boundary resistivity of CaO · 2SiO 2-in-diffused 8 mol%-yttria-stabilized zirconia (8YSZ-CS) or SiO 2-in-diffused 8 mol%-yttria-stabilized zirconia (8YSZ-S) was determined by local impedance spectroscopy using submillimeter-scale electrodes. During sintering, a liquid formed at the top of the 8YSZ penetrates or diffuses into the 8YSZ interior. For CaO · 2SiO2-in-diffused 8YSZ, the grain-boundary resistivity of the specimen surface was observed to be 150 times greater than that of the interior, and grain growth was enhanced near the surface region. In contrast, for SiO2-in-diffused 8YSZ, the near-top surface region did not show enhanced grain growth and its grain-boundary resistivity was only nine times higher than that of the specimen interior.

KW - CaO · 2SiO-in-diffused 8YSZ

KW - Distribution of siliceous segregation

KW - Grain-boundary resistivity

KW - O -in-diffused 8YSZ

KW - Si

KW - Sintering

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T2 - Fourteenth International Conference on Solid State Ionics

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