Effects of hydrogen on phase stability of ytterbium doped strontium cerates

Maki Matsuka, Takaaki Sakai, Hiroshige Matsumoto, Roger D. Braddock, Igor E. Agranovski, Tatsumi Ishihara

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The effect of hydrogen on the phase stability of both SrCe0.95Yb0.05O3 - α, (SCYb-5) powder and disk samples in both dry and wet hydrogen atmospheres was investigated. It was found that decomposition of the perovskite phase was especially evident in the disk samples treated in a dry hydrogen atmosphere, probably due to reduction of the tetravalent cerium ions to trivalent cerium ions in the sample. It was interesting to find that the extent of the decomposition of the perovskite phase was most influenced by the status (i.e. either disk or powder form) of the SCYb-5 samples, rather than the temperature or the extent of the reducing atmospheres. The findings of this study indicate that relaxation kinetics may play an important role in the phase stability of perovskite materials.

Original languageEnglish
Pages (from-to)833-835
Number of pages3
JournalMaterials Letters
Volume64
Issue number7
DOIs
Publication statusPublished - Apr 15 2010

Fingerprint

Ytterbium
Strontium
Phase stability
ytterbium
strontium
Perovskite
Cerium
Hydrogen
Powders
hydrogen
cerium
atmospheres
Ions
Decomposition
decomposition
ions
Kinetics
perovskite
kinetics
Temperature

All Science Journal Classification (ASJC) codes

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

Cite this

Effects of hydrogen on phase stability of ytterbium doped strontium cerates. / Matsuka, Maki; Sakai, Takaaki; Matsumoto, Hiroshige; Braddock, Roger D.; Agranovski, Igor E.; Ishihara, Tatsumi.

In: Materials Letters, Vol. 64, No. 7, 15.04.2010, p. 833-835.

Research output: Contribution to journalArticle

Matsuka, Maki ; Sakai, Takaaki ; Matsumoto, Hiroshige ; Braddock, Roger D. ; Agranovski, Igor E. ; Ishihara, Tatsumi. / Effects of hydrogen on phase stability of ytterbium doped strontium cerates. In: Materials Letters. 2010 ; Vol. 64, No. 7. pp. 833-835.
@article{a49337cb3b124ddda72becd9aac58edc,
title = "Effects of hydrogen on phase stability of ytterbium doped strontium cerates",
abstract = "The effect of hydrogen on the phase stability of both SrCe0.95Yb0.05O3 - α, (SCYb-5) powder and disk samples in both dry and wet hydrogen atmospheres was investigated. It was found that decomposition of the perovskite phase was especially evident in the disk samples treated in a dry hydrogen atmosphere, probably due to reduction of the tetravalent cerium ions to trivalent cerium ions in the sample. It was interesting to find that the extent of the decomposition of the perovskite phase was most influenced by the status (i.e. either disk or powder form) of the SCYb-5 samples, rather than the temperature or the extent of the reducing atmospheres. The findings of this study indicate that relaxation kinetics may play an important role in the phase stability of perovskite materials.",
author = "Maki Matsuka and Takaaki Sakai and Hiroshige Matsumoto and Braddock, {Roger D.} and Agranovski, {Igor E.} and Tatsumi Ishihara",
year = "2010",
month = "4",
day = "15",
doi = "10.1016/j.matlet.2010.01.031",
language = "English",
volume = "64",
pages = "833--835",
journal = "Materials Letters",
issn = "0167-577X",
publisher = "Elsevier",
number = "7",

}

TY - JOUR

T1 - Effects of hydrogen on phase stability of ytterbium doped strontium cerates

AU - Matsuka, Maki

AU - Sakai, Takaaki

AU - Matsumoto, Hiroshige

AU - Braddock, Roger D.

AU - Agranovski, Igor E.

AU - Ishihara, Tatsumi

PY - 2010/4/15

Y1 - 2010/4/15

N2 - The effect of hydrogen on the phase stability of both SrCe0.95Yb0.05O3 - α, (SCYb-5) powder and disk samples in both dry and wet hydrogen atmospheres was investigated. It was found that decomposition of the perovskite phase was especially evident in the disk samples treated in a dry hydrogen atmosphere, probably due to reduction of the tetravalent cerium ions to trivalent cerium ions in the sample. It was interesting to find that the extent of the decomposition of the perovskite phase was most influenced by the status (i.e. either disk or powder form) of the SCYb-5 samples, rather than the temperature or the extent of the reducing atmospheres. The findings of this study indicate that relaxation kinetics may play an important role in the phase stability of perovskite materials.

AB - The effect of hydrogen on the phase stability of both SrCe0.95Yb0.05O3 - α, (SCYb-5) powder and disk samples in both dry and wet hydrogen atmospheres was investigated. It was found that decomposition of the perovskite phase was especially evident in the disk samples treated in a dry hydrogen atmosphere, probably due to reduction of the tetravalent cerium ions to trivalent cerium ions in the sample. It was interesting to find that the extent of the decomposition of the perovskite phase was most influenced by the status (i.e. either disk or powder form) of the SCYb-5 samples, rather than the temperature or the extent of the reducing atmospheres. The findings of this study indicate that relaxation kinetics may play an important role in the phase stability of perovskite materials.

UR - http://www.scopus.com/inward/record.url?scp=76849093750&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=76849093750&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2010.01.031

DO - 10.1016/j.matlet.2010.01.031

M3 - Article

AN - SCOPUS:76849093750

VL - 64

SP - 833

EP - 835

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

IS - 7

ER -