New dielectric material system of Nd(Mg1/2Ti1/2)O3-CaTiO3 with V2O5 addition for microwave applications

Cheng-Liang Huang, Shih Hung Lin, Yuan Bin Chen

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The effects of sintering aids additives on the microstructures and microwave dielectric properties of (1 - x)CaTiO3-xNd(Mg1/2Ti1/2)O3 ceramics were investigated. The effects of V2O5 additions on the microwave dielectric properties and the microstructures of (1 - x)CaTiO3-xNd(Mg1/2Ti1/2)O3 ceramics have been investigated. Doping with 0.5 wt% V2O5 can effectively promote the densification and the microwave dielectric properties of (1 - x)CaTiO3-xNd(Mg1/2Ti1/2)O3. It is found that CaTiO3-Nd(Mg1/2Ti1/2)O3 ceramics can be sintered at 1325 °C due to the liquid phase effect of a V2O5 additions. The dielectric constant decreases from 140 to 28 as x varies from 0.1 to 1.0. The microwave dielectric properties indicate the possibility of a phase transformation for x between 0.3 and 0.5. A low-pass filter is designed and simulated using the proposed dielectric to study its performance.

Original languageEnglish
Pages (from-to)719-721
Number of pages3
JournalJournal of Alloys and Compounds
Volume489
Issue number2
DOIs
Publication statusPublished - 2010 Jan 21

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Dielectric properties
Microwaves
Microstructure
Low pass filters
Densification
Permittivity
Sintering
Phase transitions
Doping (additives)
perovskite
vanadium pentoxide
Liquids

All Science Journal Classification (ASJC) codes

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

Cite this

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title = "New dielectric material system of Nd(Mg1/2Ti1/2)O3-CaTiO3 with V2O5 addition for microwave applications",
abstract = "The effects of sintering aids additives on the microstructures and microwave dielectric properties of (1 - x)CaTiO3-xNd(Mg1/2Ti1/2)O3 ceramics were investigated. The effects of V2O5 additions on the microwave dielectric properties and the microstructures of (1 - x)CaTiO3-xNd(Mg1/2Ti1/2)O3 ceramics have been investigated. Doping with 0.5 wt{\%} V2O5 can effectively promote the densification and the microwave dielectric properties of (1 - x)CaTiO3-xNd(Mg1/2Ti1/2)O3. It is found that CaTiO3-Nd(Mg1/2Ti1/2)O3 ceramics can be sintered at 1325 °C due to the liquid phase effect of a V2O5 additions. The dielectric constant decreases from 140 to 28 as x varies from 0.1 to 1.0. The microwave dielectric properties indicate the possibility of a phase transformation for x between 0.3 and 0.5. A low-pass filter is designed and simulated using the proposed dielectric to study its performance.",
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New dielectric material system of Nd(Mg1/2Ti1/2)O3-CaTiO3 with V2O5 addition for microwave applications. / Huang, Cheng-Liang; Lin, Shih Hung; Chen, Yuan Bin.

In: Journal of Alloys and Compounds, Vol. 489, No. 2, 21.01.2010, p. 719-721.

Research output: Contribution to journalArticle

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AB - The effects of sintering aids additives on the microstructures and microwave dielectric properties of (1 - x)CaTiO3-xNd(Mg1/2Ti1/2)O3 ceramics were investigated. The effects of V2O5 additions on the microwave dielectric properties and the microstructures of (1 - x)CaTiO3-xNd(Mg1/2Ti1/2)O3 ceramics have been investigated. Doping with 0.5 wt% V2O5 can effectively promote the densification and the microwave dielectric properties of (1 - x)CaTiO3-xNd(Mg1/2Ti1/2)O3. It is found that CaTiO3-Nd(Mg1/2Ti1/2)O3 ceramics can be sintered at 1325 °C due to the liquid phase effect of a V2O5 additions. The dielectric constant decreases from 140 to 28 as x varies from 0.1 to 1.0. The microwave dielectric properties indicate the possibility of a phase transformation for x between 0.3 and 0.5. A low-pass filter is designed and simulated using the proposed dielectric to study its performance.

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