Measurement of the electrostrictive coefficients of modified lead magnesium niobate using neutron powder diffraction

S. T. Misture; S. M. Pilgrim; J. C. Hicks; C. T. Blue; E. A. Payzant; C. R. Hubbard

doi:10.1063/1.120944

Measurement of the electrostrictive coefficients of modified lead magnesium niobate using neutron powder diffraction

S. T. Misture, S. M. Pilgrim, J. C. Hicks, C. T. Blue, E. A. Payzant, C. R. Hubbard

Materials Engineering

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13 Scopus citations

Abstract

Neutron powder diffraction measurements and a constitutive model were used to determine the bulk longitudinal and transverse electrostrictive coefficients (Q_ijkl) for polycrystalline samples of the subject material. Effective single-crystal Q_ijkl were calculated from the powder neutron diffraction data. The resulting values of the three independent Q_ijkl, as determined from the cubic symmetry of the underlying lattice, are Q₃₃₃₃=2.1×10^-2m⁴/C², Q₃₃₂₂=-0.87×10^-2m⁴/C², and Q₃₂₃₂=1.2×10^-2m⁴/C². Using these effective single-crystal values, a random ensemble average was used to predict the electromechanical performance of the polycrystalline material. Predicted values of bulk Q₃₃₃₃=1.86×10^-2m⁴/C² and Q₃₃₂₂=-0.78×10^-2m⁴/C² are 89% and 87%, respectively, of the effective single-crystal values for Q₃₃₃₃ and Q₃₃₂₂, while measured values of polycrystalline specimens are only ∼70% of the single-crystal values.

Original language	English
Pages (from-to)	1042-1044
Number of pages	3
Journal	Applied Physics Letters
Volume	72
Issue number	9
DOIs	https://doi.org/10.1063/1.120944
State	Published - 1998

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@article{a07b5504e45046f68de09baba0755f89,

title = "Measurement of the electrostrictive coefficients of modified lead magnesium niobate using neutron powder diffraction",

abstract = "Neutron powder diffraction measurements and a constitutive model were used to determine the bulk longitudinal and transverse electrostrictive coefficients (Qijkl) for polycrystalline samples of the subject material. Effective single-crystal Qijkl were calculated from the powder neutron diffraction data. The resulting values of the three independent Qijkl, as determined from the cubic symmetry of the underlying lattice, are Q3333=2.1×10-2m4/C2, Q3322=-0.87×10-2m4/C2, and Q3232=1.2×10-2m4/C2. Using these effective single-crystal values, a random ensemble average was used to predict the electromechanical performance of the polycrystalline material. Predicted values of bulk Q3333=1.86×10-2m4/C2 and Q3322=-0.78×10-2m4/C2 are 89% and 87%, respectively, of the effective single-crystal values for Q3333 and Q3322, while measured values of polycrystalline specimens are only ∼70% of the single-crystal values.",

author = "Misture, {S. T.} and Pilgrim, {S. M.} and Hicks, {J. C.} and Blue, {C. T.} and Payzant, {E. A.} and Hubbard, {C. R.}",

year = "1998",

doi = "10.1063/1.120944",

language = "English",

volume = "72",

pages = "1042--1044",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Measurement of the electrostrictive coefficients of modified lead magnesium niobate using neutron powder diffraction

AU - Misture, S. T.

AU - Pilgrim, S. M.

AU - Hicks, J. C.

AU - Blue, C. T.

AU - Payzant, E. A.

AU - Hubbard, C. R.

PY - 1998

Y1 - 1998

N2 - Neutron powder diffraction measurements and a constitutive model were used to determine the bulk longitudinal and transverse electrostrictive coefficients (Qijkl) for polycrystalline samples of the subject material. Effective single-crystal Qijkl were calculated from the powder neutron diffraction data. The resulting values of the three independent Qijkl, as determined from the cubic symmetry of the underlying lattice, are Q3333=2.1×10-2m4/C2, Q3322=-0.87×10-2m4/C2, and Q3232=1.2×10-2m4/C2. Using these effective single-crystal values, a random ensemble average was used to predict the electromechanical performance of the polycrystalline material. Predicted values of bulk Q3333=1.86×10-2m4/C2 and Q3322=-0.78×10-2m4/C2 are 89% and 87%, respectively, of the effective single-crystal values for Q3333 and Q3322, while measured values of polycrystalline specimens are only ∼70% of the single-crystal values.

AB - Neutron powder diffraction measurements and a constitutive model were used to determine the bulk longitudinal and transverse electrostrictive coefficients (Qijkl) for polycrystalline samples of the subject material. Effective single-crystal Qijkl were calculated from the powder neutron diffraction data. The resulting values of the three independent Qijkl, as determined from the cubic symmetry of the underlying lattice, are Q3333=2.1×10-2m4/C2, Q3322=-0.87×10-2m4/C2, and Q3232=1.2×10-2m4/C2. Using these effective single-crystal values, a random ensemble average was used to predict the electromechanical performance of the polycrystalline material. Predicted values of bulk Q3333=1.86×10-2m4/C2 and Q3322=-0.78×10-2m4/C2 are 89% and 87%, respectively, of the effective single-crystal values for Q3333 and Q3322, while measured values of polycrystalline specimens are only ∼70% of the single-crystal values.

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U2 - 10.1063/1.120944

DO - 10.1063/1.120944

M3 - Article

AN - SCOPUS:0012932122

SN - 0003-6951

VL - 72

SP - 1042

EP - 1044

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

ER -

Measurement of the electrostrictive coefficients of modified lead magnesium niobate using neutron powder diffraction

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