Electron energy loss spectroscopy study of cerium stabilised zirconia: An application of valence determination in rare earth systems

J. Yuan; T. Hirayama; Y. Ikuhara; T. Sakuma

doi:10.1016/S0968-4328(99)00017-7

Electron energy loss spectroscopy study of cerium stabilised zirconia: An application of valence determination in rare earth systems

J. Yuan, T. Hirayama, Y. Ikuhara, T. Sakuma

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

16 Citations (Scopus)

Abstract

We have used the electron energy loss spectroscopy to study the valence state of cerium and the lattice distortion in Ce doped ZrO₂ ceramic from the fine structure in oxygen K-edge. We showed that the fine structure of Ce M_4,5 absorption edges is an excellent signature of the Ce valence state in the samples. This procedure is compared with other means of valence determination, such as white line intensity and branch ratio. Through the knowledge of the cerium oxidation state, we obtained information about the charge-compensating point defect in the samples. This is correlated with the distortion in the local atomic structure of zirconia. Our results showed the importance of covalent bonding for the phase-stabilisation mechanism in this ceramic system.

Original language	English
Pages (from-to)	141-145
Number of pages	5
Journal	Micron
Volume	30
Issue number	2
DOIs	https://doi.org/10.1016/S0968-4328(99)00017-7
Publication status	Published - 1999 Apr

Keywords

Cerium
Electron energy loss spectroscopy
Oxygen K-edge
Zirconia

ASJC Scopus subject areas

Structural Biology
Materials Science(all)
Physics and Astronomy(all)
Cell Biology

Access to Document

10.1016/S0968-4328(99)00017-7

Fingerprint Dive into the research topics of 'Electron energy loss spectroscopy study of cerium stabilised zirconia: An application of valence determination in rare earth systems'. Together they form a unique fingerprint.

Cite this

@article{4d55ba55aa7e40aeac57f8b94407e3df,

title = "Electron energy loss spectroscopy study of cerium stabilised zirconia: An application of valence determination in rare earth systems",

abstract = "We have used the electron energy loss spectroscopy to study the valence state of cerium and the lattice distortion in Ce doped ZrO2 ceramic from the fine structure in oxygen K-edge. We showed that the fine structure of Ce M4,5 absorption edges is an excellent signature of the Ce valence state in the samples. This procedure is compared with other means of valence determination, such as white line intensity and branch ratio. Through the knowledge of the cerium oxidation state, we obtained information about the charge-compensating point defect in the samples. This is correlated with the distortion in the local atomic structure of zirconia. Our results showed the importance of covalent bonding for the phase-stabilisation mechanism in this ceramic system.",

keywords = "Cerium, Electron energy loss spectroscopy, Oxygen K-edge, Zirconia",

author = "J. Yuan and T. Hirayama and Y. Ikuhara and T. Sakuma",

year = "1999",

month = apr,

doi = "10.1016/S0968-4328(99)00017-7",

language = "English",

volume = "30",

pages = "141--145",

journal = "Micron and Microscopica Acta",

issn = "0968-4328",

publisher = "Elsevier Limited",

number = "2",

}

TY - JOUR

T1 - Electron energy loss spectroscopy study of cerium stabilised zirconia

T2 - An application of valence determination in rare earth systems

AU - Yuan, J.

AU - Hirayama, T.

AU - Ikuhara, Y.

AU - Sakuma, T.

PY - 1999/4

Y1 - 1999/4

N2 - We have used the electron energy loss spectroscopy to study the valence state of cerium and the lattice distortion in Ce doped ZrO2 ceramic from the fine structure in oxygen K-edge. We showed that the fine structure of Ce M4,5 absorption edges is an excellent signature of the Ce valence state in the samples. This procedure is compared with other means of valence determination, such as white line intensity and branch ratio. Through the knowledge of the cerium oxidation state, we obtained information about the charge-compensating point defect in the samples. This is correlated with the distortion in the local atomic structure of zirconia. Our results showed the importance of covalent bonding for the phase-stabilisation mechanism in this ceramic system.

AB - We have used the electron energy loss spectroscopy to study the valence state of cerium and the lattice distortion in Ce doped ZrO2 ceramic from the fine structure in oxygen K-edge. We showed that the fine structure of Ce M4,5 absorption edges is an excellent signature of the Ce valence state in the samples. This procedure is compared with other means of valence determination, such as white line intensity and branch ratio. Through the knowledge of the cerium oxidation state, we obtained information about the charge-compensating point defect in the samples. This is correlated with the distortion in the local atomic structure of zirconia. Our results showed the importance of covalent bonding for the phase-stabilisation mechanism in this ceramic system.

KW - Cerium

KW - Electron energy loss spectroscopy

KW - Oxygen K-edge

KW - Zirconia

UR - http://www.scopus.com/inward/record.url?scp=0032996203&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032996203&partnerID=8YFLogxK

U2 - 10.1016/S0968-4328(99)00017-7

DO - 10.1016/S0968-4328(99)00017-7

M3 - Article

AN - SCOPUS:0032996203

VL - 30

SP - 141

EP - 145

JO - Micron and Microscopica Acta

JF - Micron and Microscopica Acta

SN - 0968-4328

IS - 2

ER -