High-Q microwave dielectrics in the (Mg1-xZnx)Al 2O4 (x = 0-0.1) system

Cheng-Liang Huang, Yu Hua Chien, Chen Yi Tai, Chi-Yuen Huang

Research output: Contribution to journalLetter

5 Citations (Scopus)

Abstract

The microwave dielectric properties and the microstructures of (Mg 1-xZnx)Al2O4 (x = 0-0.1) ceramic system prepared by the conventional solid-state route were investigated. The forming of spinel-structured (Mg1-xZnx)Al 2O4 (x = 0-0.1) solid solutions was confirmed by the XRD patterns and the measured lattice parameters, which linearly varied from a = b = c = 8.0815 for MgAl2O4 to a = b = c= 8.0828 for (Mg 0.9Zn0.1)Al2O4. By increasing x, the Q × f of (Mg1-xZnx)Al2O4 can be tremendously boosted from 82,000 GHz at x = 0 to a maximum of 156,000 GHz at x = 0.05. The Zn substitution was effective in reducing the dielectric loss without detrimental effects on the εr and τf values of the ceramics.

Original languageEnglish
JournalJournal of Alloys and Compounds
Volume509
Issue number9
DOIs
Publication statusPublished - 2011 Mar 3

Fingerprint

Dielectric losses
Dielectric properties
Lattice constants
Solid solutions
Substitution reactions
Microwaves
Microstructure
spinell

All Science Journal Classification (ASJC) codes

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

Cite this

@article{df8f073fc9164c2a96b9b82ddce7c131,
title = "High-Q microwave dielectrics in the (Mg1-xZnx)Al 2O4 (x = 0-0.1) system",
abstract = "The microwave dielectric properties and the microstructures of (Mg 1-xZnx)Al2O4 (x = 0-0.1) ceramic system prepared by the conventional solid-state route were investigated. The forming of spinel-structured (Mg1-xZnx)Al 2O4 (x = 0-0.1) solid solutions was confirmed by the XRD patterns and the measured lattice parameters, which linearly varied from a = b = c = 8.0815 for MgAl2O4 to a = b = c= 8.0828 for (Mg 0.9Zn0.1)Al2O4. By increasing x, the Q × f of (Mg1-xZnx)Al2O4 can be tremendously boosted from 82,000 GHz at x = 0 to a maximum of 156,000 GHz at x = 0.05. The Zn substitution was effective in reducing the dielectric loss without detrimental effects on the εr and τf values of the ceramics.",
author = "Cheng-Liang Huang and Chien, {Yu Hua} and Tai, {Chen Yi} and Chi-Yuen Huang",
year = "2011",
month = "3",
day = "3",
doi = "10.1016/j.jallcom.2010.12.202",
language = "English",
volume = "509",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",
number = "9",

}

High-Q microwave dielectrics in the (Mg1-xZnx)Al 2O4 (x = 0-0.1) system. / Huang, Cheng-Liang; Chien, Yu Hua; Tai, Chen Yi; Huang, Chi-Yuen.

In: Journal of Alloys and Compounds, Vol. 509, No. 9, 03.03.2011.

Research output: Contribution to journalLetter

TY - JOUR

T1 - High-Q microwave dielectrics in the (Mg1-xZnx)Al 2O4 (x = 0-0.1) system

AU - Huang, Cheng-Liang

AU - Chien, Yu Hua

AU - Tai, Chen Yi

AU - Huang, Chi-Yuen

PY - 2011/3/3

Y1 - 2011/3/3

N2 - The microwave dielectric properties and the microstructures of (Mg 1-xZnx)Al2O4 (x = 0-0.1) ceramic system prepared by the conventional solid-state route were investigated. The forming of spinel-structured (Mg1-xZnx)Al 2O4 (x = 0-0.1) solid solutions was confirmed by the XRD patterns and the measured lattice parameters, which linearly varied from a = b = c = 8.0815 for MgAl2O4 to a = b = c= 8.0828 for (Mg 0.9Zn0.1)Al2O4. By increasing x, the Q × f of (Mg1-xZnx)Al2O4 can be tremendously boosted from 82,000 GHz at x = 0 to a maximum of 156,000 GHz at x = 0.05. The Zn substitution was effective in reducing the dielectric loss without detrimental effects on the εr and τf values of the ceramics.

AB - The microwave dielectric properties and the microstructures of (Mg 1-xZnx)Al2O4 (x = 0-0.1) ceramic system prepared by the conventional solid-state route were investigated. The forming of spinel-structured (Mg1-xZnx)Al 2O4 (x = 0-0.1) solid solutions was confirmed by the XRD patterns and the measured lattice parameters, which linearly varied from a = b = c = 8.0815 for MgAl2O4 to a = b = c= 8.0828 for (Mg 0.9Zn0.1)Al2O4. By increasing x, the Q × f of (Mg1-xZnx)Al2O4 can be tremendously boosted from 82,000 GHz at x = 0 to a maximum of 156,000 GHz at x = 0.05. The Zn substitution was effective in reducing the dielectric loss without detrimental effects on the εr and τf values of the ceramics.

UR - http://www.scopus.com/inward/record.url?scp=79551690289&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79551690289&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2010.12.202

DO - 10.1016/j.jallcom.2010.12.202

M3 - Letter

AN - SCOPUS:79551690289

VL - 509

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

IS - 9

ER -