Evaluation of elastic property of (CeO 2) 1-x(YO 1.5)x ceramics

Kazuhisa Sato; Toshiyuki Hashida; Ken Suzuki; Hiroo Yugami; Tatsuya Kawada; Junichiro Mizusaki

doi:10.2497/jjspm.52.840

Evaluation of elastic property of (CeO ₂) _1-x(YO _1.5)x ceramics

Translated title of the contribution: Evaluation of elastic property of (CeO ₂) _1-x(YO _1.5)x ceramics

Kazuhisa Sato, Toshiyuki Hashida, Ken Suzuki, Hiroo Yugami, Tatsuya Kawada, Junichiro Mizusaki

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

1 Citation (Scopus)

Abstract

The influences of the sintering additive content of Y ₂O ₃ on elastic modulus of ceria ceramics were investigated by small punch (SP) testing method and molecular dynamics (MD) method. Y ₂O ₃ doped ceria powders with a composition of (CeO ₂) _1-x(YO _1.5) _x (x=0, 0.10, 0.15, 0.20, 0.30, 0.40) were prepared by a co-precipitation method. The powders were compacted by die pressing (50 MPa) followed by cold isostatic pressing (120 MPa), and sintered at 1500°C in air for 5 h. The elastic modulus was decreased significantly with increasing additive contents of the Y ₂O ₃ oxides. Especially, it tended to exhibit a minimum value at 10-20 mol%. However, ionic conductivity increased with increasing additive content of the Y ₂O ₃ oxides, exhibited a maximum value at 15 mol%. Calculation model and interatomic potential were shown to be useful to evaluate the elastic property.

Translated title of the contribution	Evaluation of elastic property of (CeO ₂) _1-x(YO _1.5)x ceramics
Original language	Japanese
Pages (from-to)	840-844
Number of pages	5
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	52
Issue number	11
DOIs	https://doi.org/10.2497/jjspm.52.840
Publication status	Published - 2005 Nov

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.2497/jjspm.52.840

Cite this

@article{fad0bc157202408d84b79d97c8b512b4,

title = "Evaluation of elastic property of (CeO 2) 1-x(YO 1.5)x ceramics",

abstract = "The influences of the sintering additive content of Y 2O 3 on elastic modulus of ceria ceramics were investigated by small punch (SP) testing method and molecular dynamics (MD) method. Y 2O 3 doped ceria powders with a composition of (CeO 2) 1-x(YO 1.5) x (x=0, 0.10, 0.15, 0.20, 0.30, 0.40) were prepared by a co-precipitation method. The powders were compacted by die pressing (50 MPa) followed by cold isostatic pressing (120 MPa), and sintered at 1500°C in air for 5 h. The elastic modulus was decreased significantly with increasing additive contents of the Y 2O 3 oxides. Especially, it tended to exhibit a minimum value at 10-20 mol%. However, ionic conductivity increased with increasing additive content of the Y 2O 3 oxides, exhibited a maximum value at 15 mol%. Calculation model and interatomic potential were shown to be useful to evaluate the elastic property.",

keywords = "Ceria ceramics, Elastic modulus, Molecular dynamics (MD) method, Small punch (SP) testing method, Solid oxide fuel cell",

author = "Kazuhisa Sato and Toshiyuki Hashida and Ken Suzuki and Hiroo Yugami and Tatsuya Kawada and Junichiro Mizusaki",

year = "2005",

month = nov,

doi = "10.2497/jjspm.52.840",

language = "Japanese",

volume = "52",

pages = "840--844",

journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",

issn = "0532-8799",

publisher = "Funtai Funamtsu Yakin Kyokai/Japan Soc. of Powder Metallurgy",

number = "11",

}

TY - JOUR

T1 - Evaluation of elastic property of (CeO 2) 1-x(YO 1.5)x ceramics

AU - Sato, Kazuhisa

AU - Hashida, Toshiyuki

AU - Suzuki, Ken

AU - Yugami, Hiroo

AU - Kawada, Tatsuya

AU - Mizusaki, Junichiro

PY - 2005/11

Y1 - 2005/11

N2 - The influences of the sintering additive content of Y 2O 3 on elastic modulus of ceria ceramics were investigated by small punch (SP) testing method and molecular dynamics (MD) method. Y 2O 3 doped ceria powders with a composition of (CeO 2) 1-x(YO 1.5) x (x=0, 0.10, 0.15, 0.20, 0.30, 0.40) were prepared by a co-precipitation method. The powders were compacted by die pressing (50 MPa) followed by cold isostatic pressing (120 MPa), and sintered at 1500°C in air for 5 h. The elastic modulus was decreased significantly with increasing additive contents of the Y 2O 3 oxides. Especially, it tended to exhibit a minimum value at 10-20 mol%. However, ionic conductivity increased with increasing additive content of the Y 2O 3 oxides, exhibited a maximum value at 15 mol%. Calculation model and interatomic potential were shown to be useful to evaluate the elastic property.

AB - The influences of the sintering additive content of Y 2O 3 on elastic modulus of ceria ceramics were investigated by small punch (SP) testing method and molecular dynamics (MD) method. Y 2O 3 doped ceria powders with a composition of (CeO 2) 1-x(YO 1.5) x (x=0, 0.10, 0.15, 0.20, 0.30, 0.40) were prepared by a co-precipitation method. The powders were compacted by die pressing (50 MPa) followed by cold isostatic pressing (120 MPa), and sintered at 1500°C in air for 5 h. The elastic modulus was decreased significantly with increasing additive contents of the Y 2O 3 oxides. Especially, it tended to exhibit a minimum value at 10-20 mol%. However, ionic conductivity increased with increasing additive content of the Y 2O 3 oxides, exhibited a maximum value at 15 mol%. Calculation model and interatomic potential were shown to be useful to evaluate the elastic property.

KW - Ceria ceramics

KW - Elastic modulus

KW - Molecular dynamics (MD) method

KW - Small punch (SP) testing method

KW - Solid oxide fuel cell

UR - http://www.scopus.com/inward/record.url?scp=31344439988&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=31344439988&partnerID=8YFLogxK

U2 - 10.2497/jjspm.52.840

DO - 10.2497/jjspm.52.840

M3 - Article

AN - SCOPUS:31344439988

VL - 52

SP - 840

EP - 844

JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

SN - 0532-8799

IS - 11

ER -

Evaluation of elastic property of (CeO ₂) _1-x(YO _1.5)x ceramics

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this