Liquid phase sintering of MgTiO3-CaTiO3 microwave dielectric ceramics

Cheng Liang Huang; Chung Long Pan; Shen Jiunn Shium

doi:10.1016/S0254-0584(02)00311-5

Liquid phase sintering of MgTiO₃-CaTiO₃ microwave dielectric ceramics

Cheng Liang Huang
, Chung Long Pan
, Shen Jiunn Shium

Department of Electrical Engineering

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

99 Citations (Scopus)

Abstract

The effects of CuO additive on the microstructures, the phase formation and the microwave dielectric properties of MgTiO₃-CaTiO₃ ceramics were investigated. The sintering temperature of CuO-doped 0.95MgTiO₃-0.05CaTiO₃ (95MCT) ceramics can be lowered to 1275°C due to the liquid phase effect. The microwave dielectric properties are found strongly correlate with the sintering temperature as well as the amount of CuO addition. At 1275°C, 0.95MgTiO₃-0.05CaTiO₃ ceramics with 0.25wt.% CuO addition possesses a dielectric constant ε_r of 20, a Q × f value of 51000 (at 7 GHz) and a τ_f value of -8.3 ppm°C^-1. By appropriately adjusting the x value in the (1 - x)MgTiO₃-xCaTiO₃ ceramic system, zero τ_f value can be obtained.

Original language	English
Pages (from-to)	111-115
Number of pages	5
Journal	Materials Chemistry and Physics
Volume	78
Issue number	1
DOIs	https://doi.org/10.1016/S0254-0584(02)00311-5
Publication status	Published - 2003 Feb 3

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics

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@article{07a0bd97310c448381d4e24e8e3fd596,

title = "Liquid phase sintering of MgTiO3-CaTiO3 microwave dielectric ceramics",

abstract = "The effects of CuO additive on the microstructures, the phase formation and the microwave dielectric properties of MgTiO3-CaTiO3 ceramics were investigated. The sintering temperature of CuO-doped 0.95MgTiO3-0.05CaTiO3 (95MCT) ceramics can be lowered to 1275°C due to the liquid phase effect. The microwave dielectric properties are found strongly correlate with the sintering temperature as well as the amount of CuO addition. At 1275°C, 0.95MgTiO3-0.05CaTiO3 ceramics with 0.25wt.\% CuO addition possesses a dielectric constant εr of 20, a Q × f value of 51000 (at 7 GHz) and a τf value of -8.3 ppm°C-1. By appropriately adjusting the x value in the (1 - x)MgTiO3-xCaTiO3 ceramic system, zero τf value can be obtained.",

author = "Huang, \{Cheng Liang\} and Pan, \{Chung Long\} and Shium, \{Shen Jiunn\}",

note = "Funding Information: This work was supported by the National Science Council of the Republic of China under grant NSC90-2213-E-006-061 and the Foundation of Jieh-Chen Chen Scholarship, Tainan, Taiwan. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2003",

month = feb,

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doi = "10.1016/S0254-0584(02)00311-5",

language = "English",

volume = "78",

pages = "111--115",

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T1 - Liquid phase sintering of MgTiO3-CaTiO3 microwave dielectric ceramics

AU - Huang, Cheng Liang

AU - Pan, Chung Long

AU - Shium, Shen Jiunn

N1 - Funding Information: This work was supported by the National Science Council of the Republic of China under grant NSC90-2213-E-006-061 and the Foundation of Jieh-Chen Chen Scholarship, Tainan, Taiwan. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2003/2/3

Y1 - 2003/2/3

N2 - The effects of CuO additive on the microstructures, the phase formation and the microwave dielectric properties of MgTiO3-CaTiO3 ceramics were investigated. The sintering temperature of CuO-doped 0.95MgTiO3-0.05CaTiO3 (95MCT) ceramics can be lowered to 1275°C due to the liquid phase effect. The microwave dielectric properties are found strongly correlate with the sintering temperature as well as the amount of CuO addition. At 1275°C, 0.95MgTiO3-0.05CaTiO3 ceramics with 0.25wt.% CuO addition possesses a dielectric constant εr of 20, a Q × f value of 51000 (at 7 GHz) and a τf value of -8.3 ppm°C-1. By appropriately adjusting the x value in the (1 - x)MgTiO3-xCaTiO3 ceramic system, zero τf value can be obtained.

AB - The effects of CuO additive on the microstructures, the phase formation and the microwave dielectric properties of MgTiO3-CaTiO3 ceramics were investigated. The sintering temperature of CuO-doped 0.95MgTiO3-0.05CaTiO3 (95MCT) ceramics can be lowered to 1275°C due to the liquid phase effect. The microwave dielectric properties are found strongly correlate with the sintering temperature as well as the amount of CuO addition. At 1275°C, 0.95MgTiO3-0.05CaTiO3 ceramics with 0.25wt.% CuO addition possesses a dielectric constant εr of 20, a Q × f value of 51000 (at 7 GHz) and a τf value of -8.3 ppm°C-1. By appropriately adjusting the x value in the (1 - x)MgTiO3-xCaTiO3 ceramic system, zero τf value can be obtained.

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U2 - 10.1016/S0254-0584(02)00311-5

DO - 10.1016/S0254-0584(02)00311-5

M3 - Article

AN - SCOPUS:0037415199

SN - 0254-0584

VL - 78

SP - 111

EP - 115

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1

ER -

Liquid phase sintering of MgTiO₃-CaTiO₃ microwave dielectric ceramics

Abstract

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