Microstructure and microwave dielectric properties of Ba(Zn1/3Ta2/3)O3 ceramics with ZrO2 addition

Jung In Yang, Sahn Nahm, Chang Hack Choi, Hwack Joo Lee, Hyun Min Park

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

The effect of ZrO2 on crystallographic order, microstructure, and microwave dielectric properties of Ba(Zn1/3Ta2/3)O3 (BZT) ceramics was investigated. A small amount of ZrO2 disturbed the 1:2 cation ordering. The average grain size of the BZT significantly increased with the addition of ZrO2, which was attributed to liquid-phase formation. The relative density increased with the addition of a small amount of ZrO2, but It decreased when the ZrO2 content was increased. Variation of the dielectric constant with ZrO2 addition ranged between 27 and 30, and the temperature coefficient of resonant frequency increased abruptly as the ZrO2 amount exceeded 2.0 mol%. The Q value of the BZT significantly improved with the addition of ZrO2, which could be explained by the increased relative density and grain size. The maximum Q×f value achieved in this investigation was ∼164 000 GHz for the BZT with 2.0 mol% ZrO2 sintered at 1550°C for 10 h.

Original languageEnglish
Pages (from-to)165-168
Number of pages4
JournalJournal of the American Ceramic Society
Volume85
Issue number1
Publication statusPublished - 2002 Jan 1

Fingerprint

dielectric property
ceramics
Dielectric properties
Cations
Natural frequencies
microstructure
Permittivity
grain size
Positive ions
Microwaves
Microstructure
Liquids
cation
Temperature
liquid
temperature
microwave
effect

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Microstructure and microwave dielectric properties of Ba(Zn1/3Ta2/3)O3 ceramics with ZrO2 addition. / Yang, Jung In; Nahm, Sahn; Choi, Chang Hack; Lee, Hwack Joo; Park, Hyun Min.

In: Journal of the American Ceramic Society, Vol. 85, No. 1, 01.01.2002, p. 165-168.

Research output: Contribution to journalArticle

Yang, Jung In ; Nahm, Sahn ; Choi, Chang Hack ; Lee, Hwack Joo ; Park, Hyun Min. / Microstructure and microwave dielectric properties of Ba(Zn1/3Ta2/3)O3 ceramics with ZrO2 addition. In: Journal of the American Ceramic Society. 2002 ; Vol. 85, No. 1. pp. 165-168.
@article{687e9b300f04467f9cc71818127a3985,
title = "Microstructure and microwave dielectric properties of Ba(Zn1/3Ta2/3)O3 ceramics with ZrO2 addition",
abstract = "The effect of ZrO2 on crystallographic order, microstructure, and microwave dielectric properties of Ba(Zn1/3Ta2/3)O3 (BZT) ceramics was investigated. A small amount of ZrO2 disturbed the 1:2 cation ordering. The average grain size of the BZT significantly increased with the addition of ZrO2, which was attributed to liquid-phase formation. The relative density increased with the addition of a small amount of ZrO2, but It decreased when the ZrO2 content was increased. Variation of the dielectric constant with ZrO2 addition ranged between 27 and 30, and the temperature coefficient of resonant frequency increased abruptly as the ZrO2 amount exceeded 2.0 mol{\%}. The Q value of the BZT significantly improved with the addition of ZrO2, which could be explained by the increased relative density and grain size. The maximum Q×f value achieved in this investigation was ∼164 000 GHz for the BZT with 2.0 mol{\%} ZrO2 sintered at 1550°C for 10 h.",
author = "Yang, {Jung In} and Sahn Nahm and Choi, {Chang Hack} and Lee, {Hwack Joo} and Park, {Hyun Min}",
year = "2002",
month = "1",
day = "1",
language = "English",
volume = "85",
pages = "165--168",
journal = "Journal of the American Ceramic Society",
issn = "0002-7820",
publisher = "Wiley-Blackwell",
number = "1",

}

TY - JOUR

T1 - Microstructure and microwave dielectric properties of Ba(Zn1/3Ta2/3)O3 ceramics with ZrO2 addition

AU - Yang, Jung In

AU - Nahm, Sahn

AU - Choi, Chang Hack

AU - Lee, Hwack Joo

AU - Park, Hyun Min

PY - 2002/1/1

Y1 - 2002/1/1

N2 - The effect of ZrO2 on crystallographic order, microstructure, and microwave dielectric properties of Ba(Zn1/3Ta2/3)O3 (BZT) ceramics was investigated. A small amount of ZrO2 disturbed the 1:2 cation ordering. The average grain size of the BZT significantly increased with the addition of ZrO2, which was attributed to liquid-phase formation. The relative density increased with the addition of a small amount of ZrO2, but It decreased when the ZrO2 content was increased. Variation of the dielectric constant with ZrO2 addition ranged between 27 and 30, and the temperature coefficient of resonant frequency increased abruptly as the ZrO2 amount exceeded 2.0 mol%. The Q value of the BZT significantly improved with the addition of ZrO2, which could be explained by the increased relative density and grain size. The maximum Q×f value achieved in this investigation was ∼164 000 GHz for the BZT with 2.0 mol% ZrO2 sintered at 1550°C for 10 h.

AB - The effect of ZrO2 on crystallographic order, microstructure, and microwave dielectric properties of Ba(Zn1/3Ta2/3)O3 (BZT) ceramics was investigated. A small amount of ZrO2 disturbed the 1:2 cation ordering. The average grain size of the BZT significantly increased with the addition of ZrO2, which was attributed to liquid-phase formation. The relative density increased with the addition of a small amount of ZrO2, but It decreased when the ZrO2 content was increased. Variation of the dielectric constant with ZrO2 addition ranged between 27 and 30, and the temperature coefficient of resonant frequency increased abruptly as the ZrO2 amount exceeded 2.0 mol%. The Q value of the BZT significantly improved with the addition of ZrO2, which could be explained by the increased relative density and grain size. The maximum Q×f value achieved in this investigation was ∼164 000 GHz for the BZT with 2.0 mol% ZrO2 sintered at 1550°C for 10 h.

UR - http://www.scopus.com/inward/record.url?scp=0036343756&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036343756&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0036343756

VL - 85

SP - 165

EP - 168

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

IS - 1

ER -