Microwave dielectric properties and sintering behaviors of (Mg0.95Ni0.05)TiO3-CaTiO3 ceramic system

Chun Hsu Shen; Cheng Liang Huang

doi:10.1016/j.jallcom.2008.04.099

Microwave dielectric properties and sintering behaviors of (Mg_0.95Ni_0.05)TiO₃-CaTiO₃ ceramic system

Chun Hsu Shen, Cheng Liang Huang

Department of Electrical Engineering

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

17 Citations (Scopus)

Abstract

The microwave dielectric properties and sintering behaviors of the new ceramic system (1 - x)(Mg_0.95Ni_0.05)TiO₃-xCaTiO₃ (x ≤ 0.1) prepared by conventional solid state route were investigated. The compositions with x = 0.02-0.1 resulted in the mixture of two main phases, (Mg_0.95Ni_0.05)TiO₃ and CaTiO₃, and a second phase (Mg_0.95Ni_0.05)Ti₂O₅, which was favorable at high temperatures. The two-phased system was confirmed by both XRD and EDS analysis. Zero τ_f can be achieved by appropriately adjusting the compositional ratio. Specimen with x = 0.06 possessed an excellent combination of microwave dielectric properties: ε_r ∼ 20.8, Q × f ∼ 79,200 GHz and τ_f ∼ 1.2 ppm/°C. It is proposed as a candidate material for GPS patch antennas and ISM band filters.

Original language	English
Pages (from-to)	451-455
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	472
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.04.099
Publication status	Published - 2009 Mar 20

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "Microwave dielectric properties and sintering behaviors of (Mg0.95Ni0.05)TiO3-CaTiO3 ceramic system",

abstract = "The microwave dielectric properties and sintering behaviors of the new ceramic system (1 - x)(Mg0.95Ni0.05)TiO3-xCaTiO3 (x ≤ 0.1) prepared by conventional solid state route were investigated. The compositions with x = 0.02-0.1 resulted in the mixture of two main phases, (Mg0.95Ni0.05)TiO3 and CaTiO3, and a second phase (Mg0.95Ni0.05)Ti2O5, which was favorable at high temperatures. The two-phased system was confirmed by both XRD and EDS analysis. Zero τf can be achieved by appropriately adjusting the compositional ratio. Specimen with x = 0.06 possessed an excellent combination of microwave dielectric properties: εr ∼ 20.8, Q × f ∼ 79,200 GHz and τf ∼ 1.2 ppm/°C. It is proposed as a candidate material for GPS patch antennas and ISM band filters.",

author = "Shen, {Chun Hsu} and Huang, {Cheng Liang}",

note = "Funding Information: This work was supported by the National Science Council of Taiwan under grant NSC 96-2221-E-006-117.",

year = "2009",

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doi = "10.1016/j.jallcom.2008.04.099",

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T1 - Microwave dielectric properties and sintering behaviors of (Mg0.95Ni0.05)TiO3-CaTiO3 ceramic system

AU - Shen, Chun Hsu

AU - Huang, Cheng Liang

N1 - Funding Information: This work was supported by the National Science Council of Taiwan under grant NSC 96-2221-E-006-117.

PY - 2009/3/20

Y1 - 2009/3/20

N2 - The microwave dielectric properties and sintering behaviors of the new ceramic system (1 - x)(Mg0.95Ni0.05)TiO3-xCaTiO3 (x ≤ 0.1) prepared by conventional solid state route were investigated. The compositions with x = 0.02-0.1 resulted in the mixture of two main phases, (Mg0.95Ni0.05)TiO3 and CaTiO3, and a second phase (Mg0.95Ni0.05)Ti2O5, which was favorable at high temperatures. The two-phased system was confirmed by both XRD and EDS analysis. Zero τf can be achieved by appropriately adjusting the compositional ratio. Specimen with x = 0.06 possessed an excellent combination of microwave dielectric properties: εr ∼ 20.8, Q × f ∼ 79,200 GHz and τf ∼ 1.2 ppm/°C. It is proposed as a candidate material for GPS patch antennas and ISM band filters.

AB - The microwave dielectric properties and sintering behaviors of the new ceramic system (1 - x)(Mg0.95Ni0.05)TiO3-xCaTiO3 (x ≤ 0.1) prepared by conventional solid state route were investigated. The compositions with x = 0.02-0.1 resulted in the mixture of two main phases, (Mg0.95Ni0.05)TiO3 and CaTiO3, and a second phase (Mg0.95Ni0.05)Ti2O5, which was favorable at high temperatures. The two-phased system was confirmed by both XRD and EDS analysis. Zero τf can be achieved by appropriately adjusting the compositional ratio. Specimen with x = 0.06 possessed an excellent combination of microwave dielectric properties: εr ∼ 20.8, Q × f ∼ 79,200 GHz and τf ∼ 1.2 ppm/°C. It is proposed as a candidate material for GPS patch antennas and ISM band filters.

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Microwave dielectric properties and sintering behaviors of (Mg_0.95Ni_0.05)TiO₃-CaTiO₃ ceramic system

Abstract

All Science Journal Classification (ASJC) codes

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