Microwave dielectric properties of (1-x)CaTiO3-xNd(Mg 1/2Ti1/2)O3 ceramics system

Cheng Liang Huang; Yuan Bin Chen; Ching Wen Lo

doi:10.1557/proc-783-b5.13

Microwave dielectric properties of (1-x)CaTiO₃-xNd(Mg _1/2Ti_1/2)O₃ ceramics system

Cheng Liang Huang, Yuan Bin Chen, Ching Wen Lo

Department of Electrical Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

The microwave dielectric properties of (1-x)CaTiO₃-xNd(Mgi _1/2Ti_1/2)O₃(0.1≤x≤1.0) have been investigated. The system forms a solid solution throughout the entire compositional range. The dielectric constant decreases from 152 to 27 as x varies from 0.1 to 1.0. In the (1-x)CaTiO₃-xNd(Mgi _1/2Ti_1/2)O₃ system, the microwave dielectric properties can be effectively controlled by varying the x value. A maximum quality factor Qxf = 43000GHz (where f is the resonant frequency) was achieved for samples with x=0.9, although the dielectric properties varied with sintering temperature. The Qxf value of (1-x)CaTiO₃-xNd(Mgi _1/2Ti_1/2)O₃ almost increased up to 1500°C , after which it decreased. At 1400°C, 0.1CaTiO₃-0.9Nd(Mg _1/2Ti_1/2)O₃ ceramics gives a dielectric constant ε_r of 42 , a Qxf value of 35000 (GHz) and a τ_f value of -10 (ppm/°C).

Original language	English
Pages (from-to)	53-58
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	783
DOIs	https://doi.org/10.1557/proc-783-b5.13
Publication status	Published - 2003 Jan 1
Event	Materials, Integration and Packaging Issues for High - Frequency Devices - Boston, MA, United States Duration: 2003 Dec 1 → 2003 Dec 3

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Microwave dielectric properties of (1-x)CaTiO3-xNd(Mg 1/2Ti1/2)O3 ceramics system",

abstract = "The microwave dielectric properties of (1-x)CaTiO3-xNd(Mgi 1/2Ti1/2)O3(0.1≤x≤1.0) have been investigated. The system forms a solid solution throughout the entire compositional range. The dielectric constant decreases from 152 to 27 as x varies from 0.1 to 1.0. In the (1-x)CaTiO3-xNd(Mgi 1/2Ti1/2)O3 system, the microwave dielectric properties can be effectively controlled by varying the x value. A maximum quality factor Qxf = 43000GHz (where f is the resonant frequency) was achieved for samples with x=0.9, although the dielectric properties varied with sintering temperature. The Qxf value of (1-x)CaTiO3-xNd(Mgi 1/2Ti1/2)O3 almost increased up to 1500°C , after which it decreased. At 1400°C, 0.1CaTiO3-0.9Nd(Mg 1/2Ti1/2)O3 ceramics gives a dielectric constant εr of 42 , a Qxf value of 35000 (GHz) and a τf value of -10 (ppm/°C).",

author = "Huang, {Cheng Liang} and Chen, {Yuan Bin} and Lo, {Ching Wen}",

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AU - Chen, Yuan Bin

AU - Lo, Ching Wen

PY - 2003/1/1

Y1 - 2003/1/1

N2 - The microwave dielectric properties of (1-x)CaTiO3-xNd(Mgi 1/2Ti1/2)O3(0.1≤x≤1.0) have been investigated. The system forms a solid solution throughout the entire compositional range. The dielectric constant decreases from 152 to 27 as x varies from 0.1 to 1.0. In the (1-x)CaTiO3-xNd(Mgi 1/2Ti1/2)O3 system, the microwave dielectric properties can be effectively controlled by varying the x value. A maximum quality factor Qxf = 43000GHz (where f is the resonant frequency) was achieved for samples with x=0.9, although the dielectric properties varied with sintering temperature. The Qxf value of (1-x)CaTiO3-xNd(Mgi 1/2Ti1/2)O3 almost increased up to 1500°C , after which it decreased. At 1400°C, 0.1CaTiO3-0.9Nd(Mg 1/2Ti1/2)O3 ceramics gives a dielectric constant εr of 42 , a Qxf value of 35000 (GHz) and a τf value of -10 (ppm/°C).

AB - The microwave dielectric properties of (1-x)CaTiO3-xNd(Mgi 1/2Ti1/2)O3(0.1≤x≤1.0) have been investigated. The system forms a solid solution throughout the entire compositional range. The dielectric constant decreases from 152 to 27 as x varies from 0.1 to 1.0. In the (1-x)CaTiO3-xNd(Mgi 1/2Ti1/2)O3 system, the microwave dielectric properties can be effectively controlled by varying the x value. A maximum quality factor Qxf = 43000GHz (where f is the resonant frequency) was achieved for samples with x=0.9, although the dielectric properties varied with sintering temperature. The Qxf value of (1-x)CaTiO3-xNd(Mgi 1/2Ti1/2)O3 almost increased up to 1500°C , after which it decreased. At 1400°C, 0.1CaTiO3-0.9Nd(Mg 1/2Ti1/2)O3 ceramics gives a dielectric constant εr of 42 , a Qxf value of 35000 (GHz) and a τf value of -10 (ppm/°C).

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JO - Materials Research Society Symposium - Proceedings

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Microwave dielectric properties of (1-x)CaTiO₃-xNd(Mg _1/2Ti_1/2)O₃ ceramics system

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