Low-temperature sintering and microwave dielectric properties of zinc metatitanate-rutile mixtures using boron

Hyo Tae Kim, Seong Ho Kim, Sahn Nahm, Jae Dong Byun, Yoonho Kim

Research output: Contribution to journalArticle

213 Citations (Scopus)

Abstract

Mixtures of zinc metatitanate and rutile (ZnTiO3+xTiO2, where x = 0-0.5) have been prepared via the conventional mixed-oxide method. Centrifugal planetary milling with zirconia beads 1 mm in diameter produced very fine powders (mean particle size of 0.2 μm), which allowed the synthesis of ZnTiO3 and sintering at temperatures <945 °C, which is the decomposition temperature of ZnTiO3. Sintering of the mixtures was enhanced further by the addition of B2O3. Densities of >94% of the theoretical density have been attained for the specimens that were sintered at 875 °C for 4 h with B2O3 additions of <1 wt%. Microwave dielectric properties of the aforementioned compositions were as follows: dielectric constant of 29-31, normalized quality factor of 56000-69000 GHz, and a temperature coefficient of resonance frequency between -10 and +10 ppm/°C. Sintering was enhanced by the formation of a ZnO-B2O3 liquid phase, which affected the microwave properties, because of variation in the phase composition.

Original languageEnglish
Pages (from-to)3043-3048
Number of pages6
JournalJournal of the American Ceramic Society
Volume82
Issue number11
Publication statusPublished - 1999 Nov 1

Fingerprint

dielectric property
Boron
rutile
boron
Dielectric properties
Zinc
Sintering
zinc
Microwaves
Phase composition
Zirconia
Powders
Oxides
Permittivity
temperature
Particle size
particle size
oxide
Temperature
liquid

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Low-temperature sintering and microwave dielectric properties of zinc metatitanate-rutile mixtures using boron. / Kim, Hyo Tae; Kim, Seong Ho; Nahm, Sahn; Byun, Jae Dong; Kim, Yoonho.

In: Journal of the American Ceramic Society, Vol. 82, No. 11, 01.11.1999, p. 3043-3048.

Research output: Contribution to journalArticle

Kim, Hyo Tae ; Kim, Seong Ho ; Nahm, Sahn ; Byun, Jae Dong ; Kim, Yoonho. / Low-temperature sintering and microwave dielectric properties of zinc metatitanate-rutile mixtures using boron. In: Journal of the American Ceramic Society. 1999 ; Vol. 82, No. 11. pp. 3043-3048.
@article{344deb13383a4d769ce9991599b92b44,
title = "Low-temperature sintering and microwave dielectric properties of zinc metatitanate-rutile mixtures using boron",
abstract = "Mixtures of zinc metatitanate and rutile (ZnTiO3+xTiO2, where x = 0-0.5) have been prepared via the conventional mixed-oxide method. Centrifugal planetary milling with zirconia beads 1 mm in diameter produced very fine powders (mean particle size of 0.2 μm), which allowed the synthesis of ZnTiO3 and sintering at temperatures <945 °C, which is the decomposition temperature of ZnTiO3. Sintering of the mixtures was enhanced further by the addition of B2O3. Densities of >94{\%} of the theoretical density have been attained for the specimens that were sintered at 875 °C for 4 h with B2O3 additions of <1 wt{\%}. Microwave dielectric properties of the aforementioned compositions were as follows: dielectric constant of 29-31, normalized quality factor of 56000-69000 GHz, and a temperature coefficient of resonance frequency between -10 and +10 ppm/°C. Sintering was enhanced by the formation of a ZnO-B2O3 liquid phase, which affected the microwave properties, because of variation in the phase composition.",
author = "Kim, {Hyo Tae} and Kim, {Seong Ho} and Sahn Nahm and Byun, {Jae Dong} and Yoonho Kim",
year = "1999",
month = "11",
day = "1",
language = "English",
volume = "82",
pages = "3043--3048",
journal = "Journal of the American Ceramic Society",
issn = "0002-7820",
publisher = "Wiley-Blackwell",
number = "11",

}

TY - JOUR

T1 - Low-temperature sintering and microwave dielectric properties of zinc metatitanate-rutile mixtures using boron

AU - Kim, Hyo Tae

AU - Kim, Seong Ho

AU - Nahm, Sahn

AU - Byun, Jae Dong

AU - Kim, Yoonho

PY - 1999/11/1

Y1 - 1999/11/1

N2 - Mixtures of zinc metatitanate and rutile (ZnTiO3+xTiO2, where x = 0-0.5) have been prepared via the conventional mixed-oxide method. Centrifugal planetary milling with zirconia beads 1 mm in diameter produced very fine powders (mean particle size of 0.2 μm), which allowed the synthesis of ZnTiO3 and sintering at temperatures <945 °C, which is the decomposition temperature of ZnTiO3. Sintering of the mixtures was enhanced further by the addition of B2O3. Densities of >94% of the theoretical density have been attained for the specimens that were sintered at 875 °C for 4 h with B2O3 additions of <1 wt%. Microwave dielectric properties of the aforementioned compositions were as follows: dielectric constant of 29-31, normalized quality factor of 56000-69000 GHz, and a temperature coefficient of resonance frequency between -10 and +10 ppm/°C. Sintering was enhanced by the formation of a ZnO-B2O3 liquid phase, which affected the microwave properties, because of variation in the phase composition.

AB - Mixtures of zinc metatitanate and rutile (ZnTiO3+xTiO2, where x = 0-0.5) have been prepared via the conventional mixed-oxide method. Centrifugal planetary milling with zirconia beads 1 mm in diameter produced very fine powders (mean particle size of 0.2 μm), which allowed the synthesis of ZnTiO3 and sintering at temperatures <945 °C, which is the decomposition temperature of ZnTiO3. Sintering of the mixtures was enhanced further by the addition of B2O3. Densities of >94% of the theoretical density have been attained for the specimens that were sintered at 875 °C for 4 h with B2O3 additions of <1 wt%. Microwave dielectric properties of the aforementioned compositions were as follows: dielectric constant of 29-31, normalized quality factor of 56000-69000 GHz, and a temperature coefficient of resonance frequency between -10 and +10 ppm/°C. Sintering was enhanced by the formation of a ZnO-B2O3 liquid phase, which affected the microwave properties, because of variation in the phase composition.

UR - http://www.scopus.com/inward/record.url?scp=0033225611&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033225611&partnerID=8YFLogxK

M3 - Article

VL - 82

SP - 3043

EP - 3048

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

IS - 11

ER -