Elastic constants and thermal expansion of cation disordered perovskites

Kenji Uchino; Shoichiro Nomura; Ahmed Amin; Zung P. Chang; Leslie E. Cross; Robert E. Newnham

doi:10.1143/JJAP.19.L398

Elastic constants and thermal expansion of cation disordered perovskites

Kenji Uchino, Shoichiro Nomura, Ahmed Amin, Zung P. Chang, Leslie E. Cross, Robert E. Newnham

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

8 Scopus citations

Abstract

The elastic constants of the cation disordered perovskites Pb(Mg_1/3Nb_2/3)O₃, Pb(Zn_1/3Nb_2/3)O₃ and (K_3/4Bi_1/4)(Zn_1/6Nb_5/6)O₃ have been measured by the ultrasonic pulse superposition method, and the thermal expansion of (K_3/4Bi_1/4)(Zn_1/6Nb_5/6)O₃ has been determined from 300 K to 800 K by X-ray powder diffraction. Both the elastic stiffness and the thermal expansion coefficients of cation disordered perovskites are somewhat smaller than those of simple perovskites. Consistent with previously reported electrostrictive and dielectric properties, the results can be explained by an intuitive ion “rattling” space model.

Original language	English (US)
Pages (from-to)	L398-L400
Journal	Japanese Journal of Applied Physics
Volume	19
Issue number	7
DOIs	https://doi.org/10.1143/JJAP.19.L398
State	Published - Jul 1980

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.19.L398

Cite this

@article{2b3f4c4615f141bcb6beefb86c283a50,

title = "Elastic constants and thermal expansion of cation disordered perovskites",

abstract = "The elastic constants of the cation disordered perovskites Pb(Mg1/3Nb2/3)O3, Pb(Zn1/3Nb2/3)O3 and (K3/4Bi1/4)(Zn1/6Nb5/6)O3 have been measured by the ultrasonic pulse superposition method, and the thermal expansion of (K3/4Bi1/4)(Zn1/6Nb5/6)O3 has been determined from 300 K to 800 K by X-ray powder diffraction. Both the elastic stiffness and the thermal expansion coefficients of cation disordered perovskites are somewhat smaller than those of simple perovskites. Consistent with previously reported electrostrictive and dielectric properties, the results can be explained by an intuitive ion “rattling” space model.",

author = "Kenji Uchino and Shoichiro Nomura and Ahmed Amin and Chang, {Zung P.} and Cross, {Leslie E.} and Newnham, {Robert E.}",

year = "1980",

month = jul,

doi = "10.1143/JJAP.19.L398",

language = "English (US)",

volume = "19",

pages = "L398--L400",

journal = "Japanese Journal of Applied Physics",

issn = "0021-4922",

number = "7",

}

TY - JOUR

T1 - Elastic constants and thermal expansion of cation disordered perovskites

AU - Uchino, Kenji

AU - Nomura, Shoichiro

AU - Amin, Ahmed

AU - Chang, Zung P.

AU - Cross, Leslie E.

AU - Newnham, Robert E.

PY - 1980/7

Y1 - 1980/7

N2 - The elastic constants of the cation disordered perovskites Pb(Mg1/3Nb2/3)O3, Pb(Zn1/3Nb2/3)O3 and (K3/4Bi1/4)(Zn1/6Nb5/6)O3 have been measured by the ultrasonic pulse superposition method, and the thermal expansion of (K3/4Bi1/4)(Zn1/6Nb5/6)O3 has been determined from 300 K to 800 K by X-ray powder diffraction. Both the elastic stiffness and the thermal expansion coefficients of cation disordered perovskites are somewhat smaller than those of simple perovskites. Consistent with previously reported electrostrictive and dielectric properties, the results can be explained by an intuitive ion “rattling” space model.

AB - The elastic constants of the cation disordered perovskites Pb(Mg1/3Nb2/3)O3, Pb(Zn1/3Nb2/3)O3 and (K3/4Bi1/4)(Zn1/6Nb5/6)O3 have been measured by the ultrasonic pulse superposition method, and the thermal expansion of (K3/4Bi1/4)(Zn1/6Nb5/6)O3 has been determined from 300 K to 800 K by X-ray powder diffraction. Both the elastic stiffness and the thermal expansion coefficients of cation disordered perovskites are somewhat smaller than those of simple perovskites. Consistent with previously reported electrostrictive and dielectric properties, the results can be explained by an intuitive ion “rattling” space model.

UR - http://www.scopus.com/inward/record.url?scp=84921250337&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921250337&partnerID=8YFLogxK

U2 - 10.1143/JJAP.19.L398

DO - 10.1143/JJAP.19.L398

M3 - Article

AN - SCOPUS:84921250337

SN - 0021-4922

VL - 19

SP - L398-L400

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 7

ER -

Elastic constants and thermal expansion of cation disordered perovskites

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this