New dielectric material system of x(Mg0.95Zn0.05Ti)O3-(1 - x)Ca0.8Sm0.4/3TiO3 at microwave frequency

Yuan Bin Chen, Cheng-Liang Huang, Shin Tung Tasi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The microstructures and the microwave dielectric properties of the x(Mg0.95Zn0.05)TiO3-(1 - x) Ca0.8Sm0.4/3TiO3 ceramic system were investigated. In order to achieve a temperature-stable material, we studied a method of combining a positive temperature coefficient material with a negative one. Ca0.8Sm0.4/3TiO3 has dielectric properties of dielectric constant εr ~ 120, Q × f value ~ 13,800 GHz and a large positive τf value ~ 400 ppm/°C. (Mg0.95Zn0.05)TiO3 possesses high dielectric constant (εr ~ 16.21), high quality factor (Q × f value ~ 210,000 at 9 GHz) and negative τf value (- 59 ppm/°C). Sintering at 1300 °C with x = 0.9, 0.9(Mg0.95Zn0.05Ti)O3 - 0.1 Ca0.8Sm0.4/3TiO3 has a dielectric constant (εr) of 22.7, a Q × f value of 124,000 GHz and a temperature coefficient of resonant frequency (τf) of - 6.3 ppm/°C.

Original languageEnglish
Pages (from-to)2454-2457
Number of pages4
JournalMaterials Letters
Volume62
Issue number16
DOIs
Publication statusPublished - 2008 Jun 15

Fingerprint

Microwave frequencies
microwave frequencies
Permittivity
permittivity
Dielectric properties
dielectric properties
Positive temperature coefficient
coefficients
temperature
resonant frequencies
Q factors
Natural frequencies
sintering
Sintering
Microwaves
ceramics
microwaves
Temperature
microstructure
Microstructure

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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title = "New dielectric material system of x(Mg0.95Zn0.05Ti)O3-(1 - x)Ca0.8Sm0.4/3TiO3 at microwave frequency",
abstract = "The microstructures and the microwave dielectric properties of the x(Mg0.95Zn0.05)TiO3-(1 - x) Ca0.8Sm0.4/3TiO3 ceramic system were investigated. In order to achieve a temperature-stable material, we studied a method of combining a positive temperature coefficient material with a negative one. Ca0.8Sm0.4/3TiO3 has dielectric properties of dielectric constant εr ~ 120, Q × f value ~ 13,800 GHz and a large positive τf value ~ 400 ppm/°C. (Mg0.95Zn0.05)TiO3 possesses high dielectric constant (εr ~ 16.21), high quality factor (Q × f value ~ 210,000 at 9 GHz) and negative τf value (- 59 ppm/°C). Sintering at 1300 °C with x = 0.9, 0.9(Mg0.95Zn0.05Ti)O3 - 0.1 Ca0.8Sm0.4/3TiO3 has a dielectric constant (εr) of 22.7, a Q × f value of 124,000 GHz and a temperature coefficient of resonant frequency (τf) of - 6.3 ppm/°C.",
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New dielectric material system of x(Mg0.95Zn0.05Ti)O3-(1 - x)Ca0.8Sm0.4/3TiO3 at microwave frequency. / Chen, Yuan Bin; Huang, Cheng-Liang; Tasi, Shin Tung.

In: Materials Letters, Vol. 62, No. 16, 15.06.2008, p. 2454-2457.

Research output: Contribution to journalArticle

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AU - Chen, Yuan Bin

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AB - The microstructures and the microwave dielectric properties of the x(Mg0.95Zn0.05)TiO3-(1 - x) Ca0.8Sm0.4/3TiO3 ceramic system were investigated. In order to achieve a temperature-stable material, we studied a method of combining a positive temperature coefficient material with a negative one. Ca0.8Sm0.4/3TiO3 has dielectric properties of dielectric constant εr ~ 120, Q × f value ~ 13,800 GHz and a large positive τf value ~ 400 ppm/°C. (Mg0.95Zn0.05)TiO3 possesses high dielectric constant (εr ~ 16.21), high quality factor (Q × f value ~ 210,000 at 9 GHz) and negative τf value (- 59 ppm/°C). Sintering at 1300 °C with x = 0.9, 0.9(Mg0.95Zn0.05Ti)O3 - 0.1 Ca0.8Sm0.4/3TiO3 has a dielectric constant (εr) of 22.7, a Q × f value of 124,000 GHz and a temperature coefficient of resonant frequency (τf) of - 6.3 ppm/°C.

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