Pseudocubic-based polymorphic phase boundary structures and their effect on the piezoelectric properties of (Li,Na,K)(Nb,Sb)O3-SrZrO3 lead-free ceramics

Ku Tak Lee, Dae Hyeon Kim, Sung Hoon Cho, Jeong Seog Kim, Jungho Ryu, Chel Woo Ahn, Tae Ho Lee, Gyeung Ho Kim, Sahn Nahm

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

CuO-added 0.96(LixNa0.5-xK0.5)(Nb1-ySby)O3-0.04SrZrO3 ceramics were sintered at 1020 °C for 6 h. Various crystal structures were synthesized in these specimens by controlling the Li2CO3 (x) and Sb2O5 (y) contents: pseudocubic, orthorhombic-pseudocubic polymorphic phase boundary (PPB), tetragonal-pseudocubic PPB, orthorhombic-tetragonal-pseudocubic PPB, and orthorhombic-tetragonal PPB structures. The pseudocubic structure developed in these specimens was similar to the R3m rhombohedral structure instead of the Pm3m cubic structure because the specimens with a pure pseudocubic structure showed good ferroelectric and piezoelectric properties. The piezoelectric properties of the specimens were influenced by their crystal structures. The specimen with the tetragonal-pseudocubic PPB structure showed the best piezoelectric properties because this structure was similar to the tetragonal-rhombohedral morphotropic phase boundary structure developed in Pb(Zr1-xTix)O3-based ceramics. In particular, the specimen with the tetragonal-pseudocubic PPB structure corresponding to x = 0.05 and y = 0.065 showed the largest d33 and kp values of 431 pC/N and 0.43, respectively.

Original languageEnglish
Pages (from-to)1334-1343
Number of pages10
JournalJournal of Alloys and Compounds
Volume784
DOIs
Publication statusPublished - 2019 May 5

Fingerprint

Phase boundaries
Lead
Crystal structure
Ferroelectric materials

Keywords

  • (Li,Na,K)(Nb,Sb)O-SrZrO-based lead free piezoelectric ceramics
  • Piezoelectric properties
  • Polymorphic phase boundary structure
  • Pseudocubic structure

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Pseudocubic-based polymorphic phase boundary structures and their effect on the piezoelectric properties of (Li,Na,K)(Nb,Sb)O3-SrZrO3 lead-free ceramics. / Lee, Ku Tak; Kim, Dae Hyeon; Cho, Sung Hoon; Kim, Jeong Seog; Ryu, Jungho; Ahn, Chel Woo; Lee, Tae Ho; Kim, Gyeung Ho; Nahm, Sahn.

In: Journal of Alloys and Compounds, Vol. 784, 05.05.2019, p. 1334-1343.

Research output: Contribution to journalArticle

Lee, Ku Tak ; Kim, Dae Hyeon ; Cho, Sung Hoon ; Kim, Jeong Seog ; Ryu, Jungho ; Ahn, Chel Woo ; Lee, Tae Ho ; Kim, Gyeung Ho ; Nahm, Sahn. / Pseudocubic-based polymorphic phase boundary structures and their effect on the piezoelectric properties of (Li,Na,K)(Nb,Sb)O3-SrZrO3 lead-free ceramics. In: Journal of Alloys and Compounds. 2019 ; Vol. 784. pp. 1334-1343.
@article{70c4263af6d34ec5b4914cf506a7cece,
title = "Pseudocubic-based polymorphic phase boundary structures and their effect on the piezoelectric properties of (Li,Na,K)(Nb,Sb)O3-SrZrO3 lead-free ceramics",
abstract = "CuO-added 0.96(LixNa0.5-xK0.5)(Nb1-ySby)O3-0.04SrZrO3 ceramics were sintered at 1020 °C for 6 h. Various crystal structures were synthesized in these specimens by controlling the Li2CO3 (x) and Sb2O5 (y) contents: pseudocubic, orthorhombic-pseudocubic polymorphic phase boundary (PPB), tetragonal-pseudocubic PPB, orthorhombic-tetragonal-pseudocubic PPB, and orthorhombic-tetragonal PPB structures. The pseudocubic structure developed in these specimens was similar to the R3m rhombohedral structure instead of the Pm3m cubic structure because the specimens with a pure pseudocubic structure showed good ferroelectric and piezoelectric properties. The piezoelectric properties of the specimens were influenced by their crystal structures. The specimen with the tetragonal-pseudocubic PPB structure showed the best piezoelectric properties because this structure was similar to the tetragonal-rhombohedral morphotropic phase boundary structure developed in Pb(Zr1-xTix)O3-based ceramics. In particular, the specimen with the tetragonal-pseudocubic PPB structure corresponding to x = 0.05 and y = 0.065 showed the largest d33 and kp values of 431 pC/N and 0.43, respectively.",
keywords = "(Li,Na,K)(Nb,Sb)O-SrZrO-based lead free piezoelectric ceramics, Piezoelectric properties, Polymorphic phase boundary structure, Pseudocubic structure",
author = "Lee, {Ku Tak} and Kim, {Dae Hyeon} and Cho, {Sung Hoon} and Kim, {Jeong Seog} and Jungho Ryu and Ahn, {Chel Woo} and Lee, {Tae Ho} and Kim, {Gyeung Ho} and Sahn Nahm",
year = "2019",
month = "5",
day = "5",
doi = "10.1016/j.jallcom.2019.01.011",
language = "English",
volume = "784",
pages = "1334--1343",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Pseudocubic-based polymorphic phase boundary structures and their effect on the piezoelectric properties of (Li,Na,K)(Nb,Sb)O3-SrZrO3 lead-free ceramics

AU - Lee, Ku Tak

AU - Kim, Dae Hyeon

AU - Cho, Sung Hoon

AU - Kim, Jeong Seog

AU - Ryu, Jungho

AU - Ahn, Chel Woo

AU - Lee, Tae Ho

AU - Kim, Gyeung Ho

AU - Nahm, Sahn

PY - 2019/5/5

Y1 - 2019/5/5

N2 - CuO-added 0.96(LixNa0.5-xK0.5)(Nb1-ySby)O3-0.04SrZrO3 ceramics were sintered at 1020 °C for 6 h. Various crystal structures were synthesized in these specimens by controlling the Li2CO3 (x) and Sb2O5 (y) contents: pseudocubic, orthorhombic-pseudocubic polymorphic phase boundary (PPB), tetragonal-pseudocubic PPB, orthorhombic-tetragonal-pseudocubic PPB, and orthorhombic-tetragonal PPB structures. The pseudocubic structure developed in these specimens was similar to the R3m rhombohedral structure instead of the Pm3m cubic structure because the specimens with a pure pseudocubic structure showed good ferroelectric and piezoelectric properties. The piezoelectric properties of the specimens were influenced by their crystal structures. The specimen with the tetragonal-pseudocubic PPB structure showed the best piezoelectric properties because this structure was similar to the tetragonal-rhombohedral morphotropic phase boundary structure developed in Pb(Zr1-xTix)O3-based ceramics. In particular, the specimen with the tetragonal-pseudocubic PPB structure corresponding to x = 0.05 and y = 0.065 showed the largest d33 and kp values of 431 pC/N and 0.43, respectively.

AB - CuO-added 0.96(LixNa0.5-xK0.5)(Nb1-ySby)O3-0.04SrZrO3 ceramics were sintered at 1020 °C for 6 h. Various crystal structures were synthesized in these specimens by controlling the Li2CO3 (x) and Sb2O5 (y) contents: pseudocubic, orthorhombic-pseudocubic polymorphic phase boundary (PPB), tetragonal-pseudocubic PPB, orthorhombic-tetragonal-pseudocubic PPB, and orthorhombic-tetragonal PPB structures. The pseudocubic structure developed in these specimens was similar to the R3m rhombohedral structure instead of the Pm3m cubic structure because the specimens with a pure pseudocubic structure showed good ferroelectric and piezoelectric properties. The piezoelectric properties of the specimens were influenced by their crystal structures. The specimen with the tetragonal-pseudocubic PPB structure showed the best piezoelectric properties because this structure was similar to the tetragonal-rhombohedral morphotropic phase boundary structure developed in Pb(Zr1-xTix)O3-based ceramics. In particular, the specimen with the tetragonal-pseudocubic PPB structure corresponding to x = 0.05 and y = 0.065 showed the largest d33 and kp values of 431 pC/N and 0.43, respectively.

KW - (Li,Na,K)(Nb,Sb)O-SrZrO-based lead free piezoelectric ceramics

KW - Piezoelectric properties

KW - Polymorphic phase boundary structure

KW - Pseudocubic structure

UR - http://www.scopus.com/inward/record.url?scp=85060340126&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85060340126&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2019.01.011

DO - 10.1016/j.jallcom.2019.01.011

M3 - Article

AN - SCOPUS:85060340126

VL - 784

SP - 1334

EP - 1343

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -