Effect of oxygen partial pressure during liquid-phase sintering on the dielectric properties of 0.9MgTiO3-0.1CaTiO3

Hyunho Shin; Hee Kyun Shin; Shin Tae Bae; Sangwook Lee; Kug Sun Hong

doi:10.1111/j.1551-2916.2007.02016.x

Effect of oxygen partial pressure during liquid-phase sintering on the dielectric properties of 0.9MgTiO₃-0.1CaTiO₃

Hyunho Shin
, Hee Kyun Shin
, Shin Tae Bae
, Sangwook Lee
, Kug Sun Hong

Gangneung-Wonju National University
Seoul National University

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

21 Scopus citations

Abstract

Microstructural evolution and microwave dielectric properties of liquid-phase-sintered 0.9MgTiO₃-0.1CaTiO₃ dielectric ceramic material have been investigated as a function of oxygen partial pressure () during sintering. Sintering in a weakly reducing atmosphere (=10 ^-14 atm) generally increased the density, permittivity, quality factor (Q × f), and the temperature coefficient of resonance frequency (τ_f), but further reducing atmosphere down to of 10^-14 atm generally decreased Q × f and τ_f. When the 5 wt% lithium borosilicate glass-added specimen was sintered at 950°C and =10 ^-14 atm, it demonstrated a permittivity of 18.8, Q × f of 19 000 GHz, and τ_f of 10 × 10^-6 K^-1.

Original language	English
Pages (from-to)	132-138
Number of pages	7
Journal	Journal of the American Ceramic Society
Volume	91
Issue number	1
DOIs	https://doi.org/10.1111/j.1551-2916.2007.02016.x
State	Published - Jan 2008

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title = "Effect of oxygen partial pressure during liquid-phase sintering on the dielectric properties of 0.9MgTiO3-0.1CaTiO3",

abstract = "Microstructural evolution and microwave dielectric properties of liquid-phase-sintered 0.9MgTiO3-0.1CaTiO3 dielectric ceramic material have been investigated as a function of oxygen partial pressure () during sintering. Sintering in a weakly reducing atmosphere (=10 -14 atm) generally increased the density, permittivity, quality factor (Q × f), and the temperature coefficient of resonance frequency (τf), but further reducing atmosphere down to of 10-14 atm generally decreased Q × f and τf. When the 5 wt\% lithium borosilicate glass-added specimen was sintered at 950°C and =10 -14 atm, it demonstrated a permittivity of 18.8, Q × f of 19 000 GHz, and τf of 10 × 10-6 K-1.",

author = "Hyunho Shin and Shin, \{Hee Kyun\} and Bae, \{Shin Tae\} and Sangwook Lee and Hong, \{Kug Sun\}",

year = "2008",

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doi = "10.1111/j.1551-2916.2007.02016.x",

language = "English",

volume = "91",

pages = "132--138",

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T1 - Effect of oxygen partial pressure during liquid-phase sintering on the dielectric properties of 0.9MgTiO3-0.1CaTiO3

AU - Shin, Hyunho

AU - Shin, Hee Kyun

AU - Bae, Shin Tae

AU - Lee, Sangwook

AU - Hong, Kug Sun

PY - 2008/1

Y1 - 2008/1

N2 - Microstructural evolution and microwave dielectric properties of liquid-phase-sintered 0.9MgTiO3-0.1CaTiO3 dielectric ceramic material have been investigated as a function of oxygen partial pressure () during sintering. Sintering in a weakly reducing atmosphere (=10 -14 atm) generally increased the density, permittivity, quality factor (Q × f), and the temperature coefficient of resonance frequency (τf), but further reducing atmosphere down to of 10-14 atm generally decreased Q × f and τf. When the 5 wt% lithium borosilicate glass-added specimen was sintered at 950°C and =10 -14 atm, it demonstrated a permittivity of 18.8, Q × f of 19 000 GHz, and τf of 10 × 10-6 K-1.

AB - Microstructural evolution and microwave dielectric properties of liquid-phase-sintered 0.9MgTiO3-0.1CaTiO3 dielectric ceramic material have been investigated as a function of oxygen partial pressure () during sintering. Sintering in a weakly reducing atmosphere (=10 -14 atm) generally increased the density, permittivity, quality factor (Q × f), and the temperature coefficient of resonance frequency (τf), but further reducing atmosphere down to of 10-14 atm generally decreased Q × f and τf. When the 5 wt% lithium borosilicate glass-added specimen was sintered at 950°C and =10 -14 atm, it demonstrated a permittivity of 18.8, Q × f of 19 000 GHz, and τf of 10 × 10-6 K-1.

UR - https://www.scopus.com/pages/publications/37849048237

U2 - 10.1111/j.1551-2916.2007.02016.x

DO - 10.1111/j.1551-2916.2007.02016.x

M3 - Article

AN - SCOPUS:37849048237

SN - 0002-7820

VL - 91

SP - 132

EP - 138

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 1

ER -

Effect of oxygen partial pressure during liquid-phase sintering on the dielectric properties of 0.9MgTiO₃-0.1CaTiO₃

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