Mechanical properties of La 0.6Sr 0.4Co 1-yFe yO 3-δ under various temperatures and oxygen partial pressures

Y. Kimura; T. Kushi; S. Hashimoto; S. Watanabe; K. Amezawa; T. Kawada; Y. Fukuda; A. Unemoto; K. Sato; K. Yashiro; J. Mizusaki; T. Hashida

doi:10.1149/1.3570240

Mechanical properties of La _0.6Sr _0.4Co _1-yFe _yO _3-δ under various temperatures and oxygen partial pressures

Y. Kimura, T. Kushi, S. Hashimoto, S. Watanabe, K. Amezawa, T. Kawada, Y. Fukuda, A. Unemoto, K. Sato, K. Yashiro, J. Mizusaki, T. Hashida

Tohoku University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Citations (Scopus)

Abstract

Young's modulus, shear modulus, Poisson's ratio and internal friction of La _0.6Sr _0.4CoO _3-δ (LSC) and La _0.6Sr _0.4Co _0.2Fe _0.8O _3-δ (LSCF6428) were evaluated in the temperature range between 298 to 1173 K, and the oxygen partial pressure, P(O ₂), range between 1 × 10 ^-1 to 1 × 10 ^-4 bar using the resonance method. The apparent Young's moduli of LSC and LSCF6428 first decreased with increasing temperature, and then drastically increased at intermediate temperatures. P(O ₂) dependence of the Young's modulus of LSCF6428 showed different trends depending on temperature. At 873 K, the Young's modulus was almost independent of P(O ₂), while it increased with decreasing P(O ₂) at 973 K. At 1073 K, it increased down to 5 × 10 ^-3 bar and then decreased in further lower P(O ₂). At 1173 K, it decreased with decreasing P(O ₂). Such complicated temperature and P(O ₂) dependences are considered as composite phenomena caused by the lattice expansion/shrinkage, the oxygen nonstoichiometry change, and the phase transition.

Original language	English
Title of host publication	Solid Oxide Fuel Cells 12, SOFC XII
Pages	2429-2434
Number of pages	6
Edition	3 PART 3
DOIs	https://doi.org/10.1149/1.3570240
Publication status	Published - 2011
Event	12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting - Montreal, QC, Canada Duration: 2011 May 1 → 2011 May 6

Publication series

Name	ECS Transactions
Number	3 PART 3
Volume	35
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Conference

Conference	12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting
Country/Territory	Canada
City	Montreal, QC
Period	11/5/1 → 11/5/6

Access to Document

10.1149/1.3570240

Cite this

Kimura, Y., Kushi, T., Hashimoto, S., Watanabe, S., Amezawa, K., Kawada, T., Fukuda, Y., Unemoto, A., Sato, K., Yashiro, K., Mizusaki, J., & Hashida, T. (2011). Mechanical properties of La _0.6Sr _0.4Co _1-yFe _yO _3-δ under various temperatures and oxygen partial pressures. In Solid Oxide Fuel Cells 12, SOFC XII (3 PART 3 ed., pp. 2429-2434). (ECS Transactions; Vol. 35, No. 3 PART 3). https://doi.org/10.1149/1.3570240

@inproceedings{ade9863911fa4045b5ea8d2adcd9e3cc,

title = "Mechanical properties of La 0.6Sr 0.4Co 1-yFe yO 3-δ under various temperatures and oxygen partial pressures",

abstract = "Young's modulus, shear modulus, Poisson's ratio and internal friction of La 0.6Sr 0.4CoO 3-δ (LSC) and La 0.6Sr 0.4Co 0.2Fe 0.8O 3-δ (LSCF6428) were evaluated in the temperature range between 298 to 1173 K, and the oxygen partial pressure, P(O 2), range between 1 × 10 -1 to 1 × 10 -4 bar using the resonance method. The apparent Young's moduli of LSC and LSCF6428 first decreased with increasing temperature, and then drastically increased at intermediate temperatures. P(O 2) dependence of the Young's modulus of LSCF6428 showed different trends depending on temperature. At 873 K, the Young's modulus was almost independent of P(O 2), while it increased with decreasing P(O 2) at 973 K. At 1073 K, it increased down to 5 × 10 -3 bar and then decreased in further lower P(O 2). At 1173 K, it decreased with decreasing P(O 2). Such complicated temperature and P(O 2) dependences are considered as composite phenomena caused by the lattice expansion/shrinkage, the oxygen nonstoichiometry change, and the phase transition.",

author = "Y. Kimura and T. Kushi and S. Hashimoto and S. Watanabe and K. Amezawa and T. Kawada and Y. Fukuda and A. Unemoto and K. Sato and K. Yashiro and J. Mizusaki and T. Hashida",

year = "2011",

doi = "10.1149/1.3570240",

language = "English",

isbn = "9781607682363",

series = "ECS Transactions",

number = "3 PART 3",

pages = "2429--2434",

booktitle = "Solid Oxide Fuel Cells 12, SOFC XII",

edition = "3 PART 3",

note = "12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting ; Conference date: 01-05-2011 Through 06-05-2011",

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Kimura, Y, Kushi, T, Hashimoto, S, Watanabe, S, Amezawa, K , Kawada, T, Fukuda, Y, Unemoto, A, Sato, K , Yashiro, K, Mizusaki, J & Hashida, T 2011, Mechanical properties of La _0.6Sr _0.4Co _1-yFe _yO _3-δ under various temperatures and oxygen partial pressures. in Solid Oxide Fuel Cells 12, SOFC XII. 3 PART 3 edn, ECS Transactions, no. 3 PART 3, vol. 35, pp. 2429-2434, 12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting, Montreal, QC, Canada, 11/5/1. https://doi.org/10.1149/1.3570240

Mechanical properties of La _0.6Sr _0.4Co _1-yFe _yO _3-δ under various temperatures and oxygen partial pressures. / Kimura, Y.; Kushi, T.; Hashimoto, S. et al.
Solid Oxide Fuel Cells 12, SOFC XII. 3 PART 3. ed. 2011. p. 2429-2434 (ECS Transactions; Vol. 35, No. 3 PART 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Mechanical properties of La 0.6Sr 0.4Co 1-yFe yO 3-δ under various temperatures and oxygen partial pressures

AU - Kimura, Y.

AU - Kushi, T.

AU - Hashimoto, S.

AU - Watanabe, S.

AU - Amezawa, K.

AU - Kawada, T.

AU - Fukuda, Y.

AU - Unemoto, A.

AU - Sato, K.

AU - Yashiro, K.

AU - Mizusaki, J.

AU - Hashida, T.

PY - 2011

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AB - Young's modulus, shear modulus, Poisson's ratio and internal friction of La 0.6Sr 0.4CoO 3-δ (LSC) and La 0.6Sr 0.4Co 0.2Fe 0.8O 3-δ (LSCF6428) were evaluated in the temperature range between 298 to 1173 K, and the oxygen partial pressure, P(O 2), range between 1 × 10 -1 to 1 × 10 -4 bar using the resonance method. The apparent Young's moduli of LSC and LSCF6428 first decreased with increasing temperature, and then drastically increased at intermediate temperatures. P(O 2) dependence of the Young's modulus of LSCF6428 showed different trends depending on temperature. At 873 K, the Young's modulus was almost independent of P(O 2), while it increased with decreasing P(O 2) at 973 K. At 1073 K, it increased down to 5 × 10 -3 bar and then decreased in further lower P(O 2). At 1173 K, it decreased with decreasing P(O 2). Such complicated temperature and P(O 2) dependences are considered as composite phenomena caused by the lattice expansion/shrinkage, the oxygen nonstoichiometry change, and the phase transition.

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