The defect structure of yttria-stabilized zirconia, studied by quasielastic diffuse neutron scattering

Niels Hessel Andersen; Kurt Nørgaard Clausen; M. A. Hackett; W. Hayes; M. T. Hutchings; J. E. MacDonald; R. Osborn

doi:10.1016/S0378-4363(86)80081-X

The defect structure of yttria-stabilized zirconia, studied by quasielastic diffuse neutron scattering

Niels Hessel Andersen, Kurt Nørgaard Clausen, M. A. Hackett, W. Hayes, M. T. Hutchings, J. E. MacDonald, R. Osborn

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Abstract

The static defect structure of the oxygen ion conductor Y2O3 stabilized zirconia has been studied at room temperature by coherent diffuse neutron scattering from single crystal samples containing nominally 9.4, 12, 15 and 18 mol% Y2O3. There are two principal contributions to the observed diffuse intensity. The first arises from tetrahedral distortions in small vacancy free regions of the crystal which decrease in volume as the dopant level increases. The second arises from correlated vacancies and their associated relaxed ions in the remainder of the crystal. The 9.4 mol% sample has been studied at elevated temperatures. The scattering becomes partly quasielastic, but the correlations persist to the highest temperatures studied (1900°C). The temperature and Q-dependence of the energy width has been studied at selected positions in reciprocal space.

Original language	English
Journal	Physica A+B
Volume	136
Issue number	1-3
Pages (from-to)	315-317
ISSN	0378-4363
DOIs	https://doi.org/10.1016/S0378-4363(86)80081-X
Publication status	Published - 1986

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title = "The defect structure of yttria-stabilized zirconia, studied by quasielastic diffuse neutron scattering",

abstract = "The static defect structure of the oxygen ion conductor Y2O3 stabilized zirconia has been studied at room temperature by coherent diffuse neutron scattering from single crystal samples containing nominally 9.4, 12, 15 and 18 mol% Y2O3. There are two principal contributions to the observed diffuse intensity. The first arises from tetrahedral distortions in small vacancy free regions of the crystal which decrease in volume as the dopant level increases. The second arises from correlated vacancies and their associated relaxed ions in the remainder of the crystal. The 9.4 mol% sample has been studied at elevated temperatures. The scattering becomes partly quasielastic, but the correlations persist to the highest temperatures studied (1900°C). The temperature and Q-dependence of the energy width has been studied at selected positions in reciprocal space.",

author = "Andersen, {Niels Hessel} and Clausen, {Kurt N{\o}rgaard} and Hackett, {M. A.} and W. Hayes and Hutchings, {M. T.} and MacDonald, {J. E.} and R. Osborn",

year = "1986",

doi = "10.1016/S0378-4363(86)80081-X",

language = "English",

volume = "136",

pages = "315--317",

journal = "Physica A+B",

issn = "0378-4363",

publisher = "North-Holland Publ Co",

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TY - JOUR

T1 - The defect structure of yttria-stabilized zirconia, studied by quasielastic diffuse neutron scattering

AU - Andersen, Niels Hessel

AU - Clausen, Kurt Nørgaard

AU - Hackett, M. A.

AU - Hayes, W.

AU - Hutchings, M. T.

AU - MacDonald, J. E.

AU - Osborn, R.

PY - 1986

Y1 - 1986

N2 - The static defect structure of the oxygen ion conductor Y2O3 stabilized zirconia has been studied at room temperature by coherent diffuse neutron scattering from single crystal samples containing nominally 9.4, 12, 15 and 18 mol% Y2O3. There are two principal contributions to the observed diffuse intensity. The first arises from tetrahedral distortions in small vacancy free regions of the crystal which decrease in volume as the dopant level increases. The second arises from correlated vacancies and their associated relaxed ions in the remainder of the crystal. The 9.4 mol% sample has been studied at elevated temperatures. The scattering becomes partly quasielastic, but the correlations persist to the highest temperatures studied (1900°C). The temperature and Q-dependence of the energy width has been studied at selected positions in reciprocal space.

AB - The static defect structure of the oxygen ion conductor Y2O3 stabilized zirconia has been studied at room temperature by coherent diffuse neutron scattering from single crystal samples containing nominally 9.4, 12, 15 and 18 mol% Y2O3. There are two principal contributions to the observed diffuse intensity. The first arises from tetrahedral distortions in small vacancy free regions of the crystal which decrease in volume as the dopant level increases. The second arises from correlated vacancies and their associated relaxed ions in the remainder of the crystal. The 9.4 mol% sample has been studied at elevated temperatures. The scattering becomes partly quasielastic, but the correlations persist to the highest temperatures studied (1900°C). The temperature and Q-dependence of the energy width has been studied at selected positions in reciprocal space.

U2 - 10.1016/S0378-4363(86)80081-X

DO - 10.1016/S0378-4363(86)80081-X

M3 - Journal article

SN - 0378-4363

VL - 136

SP - 315

EP - 317

JO - Physica A+B

JF - Physica A+B

IS - 1-3

ER -

The defect structure of yttria-stabilized zirconia, studied by quasielastic diffuse neutron scattering

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