Crystallization behavior and microwave dielectric characteristics of ZnO-(La, Nd)2O3-B2O3-based dielectrics

Deuk Ho Yeon; Yeon Hwa Jo; Viswanathan S. Saji; Dong Heon Kang; Yong Soo Cho

doi:10.1007/s10832-007-9324-y

Crystallization behavior and microwave dielectric characteristics of ZnO-(La, Nd)₂O₃-B₂O₃-based dielectrics

Deuk Ho Yeon, Yeon Hwa Jo, Viswanathan S. Saji, Dong Heon Kang, Yong Soo Cho

Department of Materials Science and Engineering

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

6 Citations (Scopus)

Abstract

Crystallizable zinc borate glasses modified with different contents of La₂O₃ or Nd₂O₃ were investigated as a potential low loss dielectric with respect to their crystallization behavior and microwave dielectric characteristics. The glasses were admixed with Al ₂O₃ filler and fired at 850°C for 30 min in air to prepare low temperature dielectrics. Crystallization behavior and microwave dielectric properties of the resulting samples strongly depended on the relative content of La₂O₃ or Nd₂O₃ in the glass. As a promising result, the composition of 0.15ZnO-0.25Nd ₂O₃-0.6B₂O₃ exhibited k∼6.5 and Q∼1194 at the resonant frequency of 18.9 GHz. Near zero temperature coefficient of frequency (TCF) was obtained by additional modification of the composition with ∼10 wt.% of TiO₂ filler. Crystallization kinetics of the samples was studied based on the differential thermal analysis (DTA) curves obtained with different heating rates. Correlation of the observed dielectric properties to the crystallization behavior is the main subject of this work.

Original language	English
Pages (from-to)	127-132
Number of pages	6
Journal	Journal of Electroceramics
Volume	23
Issue number	2-4
DOIs	https://doi.org/10.1007/s10832-007-9324-y
Publication status	Published - 2009 Oct

Bibliographical note

Funding Information:
Acknowledgement This work is partially supported by Korea Energy Management Corporation (KEMCO) through a research project.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Mechanics of Materials
Materials Chemistry
Electrical and Electronic Engineering

Access to Document

10.1007/s10832-007-9324-y

Cite this

@article{6b750bd6817243b18094b6e274fae67e,

title = "Crystallization behavior and microwave dielectric characteristics of ZnO-(La, Nd)2O3-B2O3-based dielectrics",

abstract = "Crystallizable zinc borate glasses modified with different contents of La2O3 or Nd2O3 were investigated as a potential low loss dielectric with respect to their crystallization behavior and microwave dielectric characteristics. The glasses were admixed with Al 2O3 filler and fired at 850°C for 30 min in air to prepare low temperature dielectrics. Crystallization behavior and microwave dielectric properties of the resulting samples strongly depended on the relative content of La2O3 or Nd2O3 in the glass. As a promising result, the composition of 0.15ZnO-0.25Nd 2O3-0.6B2O3 exhibited k∼6.5 and Q∼1194 at the resonant frequency of 18.9 GHz. Near zero temperature coefficient of frequency (TCF) was obtained by additional modification of the composition with ∼10 wt.% of TiO2 filler. Crystallization kinetics of the samples was studied based on the differential thermal analysis (DTA) curves obtained with different heating rates. Correlation of the observed dielectric properties to the crystallization behavior is the main subject of this work.",

author = "Yeon, {Deuk Ho} and Jo, {Yeon Hwa} and Saji, {Viswanathan S.} and Kang, {Dong Heon} and Cho, {Yong Soo}",

note = "Funding Information: Acknowledgement This work is partially supported by Korea Energy Management Corporation (KEMCO) through a research project.",

year = "2009",

month = oct,

doi = "10.1007/s10832-007-9324-y",

language = "English",

volume = "23",

pages = "127--132",

journal = "Journal of Electroceramics",

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T1 - Crystallization behavior and microwave dielectric characteristics of ZnO-(La, Nd)2O3-B2O3-based dielectrics

AU - Yeon, Deuk Ho

AU - Jo, Yeon Hwa

AU - Saji, Viswanathan S.

AU - Kang, Dong Heon

AU - Cho, Yong Soo

N1 - Funding Information: Acknowledgement This work is partially supported by Korea Energy Management Corporation (KEMCO) through a research project.

PY - 2009/10

Y1 - 2009/10

N2 - Crystallizable zinc borate glasses modified with different contents of La2O3 or Nd2O3 were investigated as a potential low loss dielectric with respect to their crystallization behavior and microwave dielectric characteristics. The glasses were admixed with Al 2O3 filler and fired at 850°C for 30 min in air to prepare low temperature dielectrics. Crystallization behavior and microwave dielectric properties of the resulting samples strongly depended on the relative content of La2O3 or Nd2O3 in the glass. As a promising result, the composition of 0.15ZnO-0.25Nd 2O3-0.6B2O3 exhibited k∼6.5 and Q∼1194 at the resonant frequency of 18.9 GHz. Near zero temperature coefficient of frequency (TCF) was obtained by additional modification of the composition with ∼10 wt.% of TiO2 filler. Crystallization kinetics of the samples was studied based on the differential thermal analysis (DTA) curves obtained with different heating rates. Correlation of the observed dielectric properties to the crystallization behavior is the main subject of this work.

AB - Crystallizable zinc borate glasses modified with different contents of La2O3 or Nd2O3 were investigated as a potential low loss dielectric with respect to their crystallization behavior and microwave dielectric characteristics. The glasses were admixed with Al 2O3 filler and fired at 850°C for 30 min in air to prepare low temperature dielectrics. Crystallization behavior and microwave dielectric properties of the resulting samples strongly depended on the relative content of La2O3 or Nd2O3 in the glass. As a promising result, the composition of 0.15ZnO-0.25Nd 2O3-0.6B2O3 exhibited k∼6.5 and Q∼1194 at the resonant frequency of 18.9 GHz. Near zero temperature coefficient of frequency (TCF) was obtained by additional modification of the composition with ∼10 wt.% of TiO2 filler. Crystallization kinetics of the samples was studied based on the differential thermal analysis (DTA) curves obtained with different heating rates. Correlation of the observed dielectric properties to the crystallization behavior is the main subject of this work.

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