Structural transition and microwave dielectric properties of ZnNb2O6-TiO2 sintered at low temperatures

Dong-Wan Kim, Hee Bum Hong, Kug Sun Hong

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The addition of CuO to ZnNb2O6-TiO2 significantly lowered the sintering temperature to ∼900°C in comparison to ∼1200°C for samples without CuO. The effect of CuO additions on the phase transitions and microwave dielectric properties of 0.42 ZnNb2O6 - 0.58 TiO2 has been investigated using X-ray powder diffraction and a network analyzer. The structural transition from columbite and rutile to ixiolite was influenced by both the sintering temperature as well as the amount of CuO. These influences, however, were competing. Therefore, it is assumed that the different constitutions of crystal structure of ZnNb2O6-TiO2 samples due to increase either the sintering temperature or the amount of CuO lead to considerable Variation in the microwave dielectric properties. The τf was modified to ∼0 ppm/°C, as a result of the variation in phase constitutions as a function of composition.

Original languageEnglish
Pages (from-to)1465-1469
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume41
Issue number3 A
Publication statusPublished - 2002 Mar 1
Externally publishedYes

Fingerprint

Dielectric properties
dielectric properties
sintering
Sintering
constitution
Microwaves
microwaves
Electric network analyzers
rutile
X ray powder diffraction
Temperature
temperature
analyzers
Crystal structure
Phase transitions
crystal structure
Chemical analysis
diffraction
x rays

Keywords

  • Low-firing
  • Microwave dielectric properties
  • Structural transition
  • TiO
  • ZnNbO
  • ZnTiNbO

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

@article{c8660f2661e8486ea7ef20edead2bb13,
title = "Structural transition and microwave dielectric properties of ZnNb2O6-TiO2 sintered at low temperatures",
abstract = "The addition of CuO to ZnNb2O6-TiO2 significantly lowered the sintering temperature to ∼900°C in comparison to ∼1200°C for samples without CuO. The effect of CuO additions on the phase transitions and microwave dielectric properties of 0.42 ZnNb2O6 - 0.58 TiO2 has been investigated using X-ray powder diffraction and a network analyzer. The structural transition from columbite and rutile to ixiolite was influenced by both the sintering temperature as well as the amount of CuO. These influences, however, were competing. Therefore, it is assumed that the different constitutions of crystal structure of ZnNb2O6-TiO2 samples due to increase either the sintering temperature or the amount of CuO lead to considerable Variation in the microwave dielectric properties. The τf was modified to ∼0 ppm/°C, as a result of the variation in phase constitutions as a function of composition.",
keywords = "Low-firing, Microwave dielectric properties, Structural transition, TiO, ZnNbO, ZnTiNbO",
author = "Dong-Wan Kim and Hong, {Hee Bum} and Hong, {Kug Sun}",
year = "2002",
month = "3",
day = "1",
language = "English",
volume = "41",
pages = "1465--1469",
journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
issn = "0021-4922",
publisher = "Japan Society of Applied Physics",
number = "3 A",

}

TY - JOUR

T1 - Structural transition and microwave dielectric properties of ZnNb2O6-TiO2 sintered at low temperatures

AU - Kim, Dong-Wan

AU - Hong, Hee Bum

AU - Hong, Kug Sun

PY - 2002/3/1

Y1 - 2002/3/1

N2 - The addition of CuO to ZnNb2O6-TiO2 significantly lowered the sintering temperature to ∼900°C in comparison to ∼1200°C for samples without CuO. The effect of CuO additions on the phase transitions and microwave dielectric properties of 0.42 ZnNb2O6 - 0.58 TiO2 has been investigated using X-ray powder diffraction and a network analyzer. The structural transition from columbite and rutile to ixiolite was influenced by both the sintering temperature as well as the amount of CuO. These influences, however, were competing. Therefore, it is assumed that the different constitutions of crystal structure of ZnNb2O6-TiO2 samples due to increase either the sintering temperature or the amount of CuO lead to considerable Variation in the microwave dielectric properties. The τf was modified to ∼0 ppm/°C, as a result of the variation in phase constitutions as a function of composition.

AB - The addition of CuO to ZnNb2O6-TiO2 significantly lowered the sintering temperature to ∼900°C in comparison to ∼1200°C for samples without CuO. The effect of CuO additions on the phase transitions and microwave dielectric properties of 0.42 ZnNb2O6 - 0.58 TiO2 has been investigated using X-ray powder diffraction and a network analyzer. The structural transition from columbite and rutile to ixiolite was influenced by both the sintering temperature as well as the amount of CuO. These influences, however, were competing. Therefore, it is assumed that the different constitutions of crystal structure of ZnNb2O6-TiO2 samples due to increase either the sintering temperature or the amount of CuO lead to considerable Variation in the microwave dielectric properties. The τf was modified to ∼0 ppm/°C, as a result of the variation in phase constitutions as a function of composition.

KW - Low-firing

KW - Microwave dielectric properties

KW - Structural transition

KW - TiO

KW - ZnNbO

KW - ZnTiNbO

UR - http://www.scopus.com/inward/record.url?scp=0036508672&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036508672&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0036508672

VL - 41

SP - 1465

EP - 1469

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 3 A

ER -