Effects of magnesium doping on phase transitions and dielectric figure of merit of barium strontium titanate ceramics

Pengrong Ren; Huiqing Fan; Xin Wang; Kun Liu

doi:10.1111/j.1744-7402.2011.02628.x

Effects of magnesium doping on phase transitions and dielectric figure of merit of barium strontium titanate ceramics

Pengrong Ren, Huiqing Fan, Xin Wang, Kun Liu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

6 Scopus citations

Abstract

Ba _0.6Sr _0.4(Ti _1-xMg _x)O ₃ (BSTM) ceramics were prepared by using a solid-state reaction process. X-ray diffraction results indicated that the solubility limit of Mg in Ba _0.6Sr _0.4TiO ₃ was about 3 mol%. Doping of Mg into BST led to diffused cubic-tetragonal (C-T) phase transition and reduced Curie temperature. The diffused parameter γ obtained by fitting the modified Curie-Weiss laws increased with increasing Mg content. Dielectric properties of the BSTM ceramics were measured. Figure of merit of BSTM3 was up to 127.8 at 17.5 kV/cm. Its dielectric loss was as low as 0.00133 at 1 kHz and room temperature.

Original language	English
Pages (from-to)	358-365
Number of pages	8
Journal	International Journal of Applied Ceramic Technology
Volume	9
Issue number	2
DOIs	https://doi.org/10.1111/j.1744-7402.2011.02628.x
State	Published - Mar 2012

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title = "Effects of magnesium doping on phase transitions and dielectric figure of merit of barium strontium titanate ceramics",

abstract = "Ba 0.6Sr 0.4(Ti 1-xMg x)O 3 (BSTM) ceramics were prepared by using a solid-state reaction process. X-ray diffraction results indicated that the solubility limit of Mg in Ba 0.6Sr 0.4TiO 3 was about 3 mol%. Doping of Mg into BST led to diffused cubic-tetragonal (C-T) phase transition and reduced Curie temperature. The diffused parameter γ obtained by fitting the modified Curie-Weiss laws increased with increasing Mg content. Dielectric properties of the BSTM ceramics were measured. Figure of merit of BSTM3 was up to 127.8 at 17.5 kV/cm. Its dielectric loss was as low as 0.00133 at 1 kHz and room temperature.",

author = "Pengrong Ren and Huiqing Fan and Xin Wang and Kun Liu",

year = "2012",

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doi = "10.1111/j.1744-7402.2011.02628.x",

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journal = "International Journal of Applied Ceramic Technology",

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T1 - Effects of magnesium doping on phase transitions and dielectric figure of merit of barium strontium titanate ceramics

AU - Ren, Pengrong

AU - Fan, Huiqing

AU - Wang, Xin

AU - Liu, Kun

PY - 2012/3

Y1 - 2012/3

N2 - Ba 0.6Sr 0.4(Ti 1-xMg x)O 3 (BSTM) ceramics were prepared by using a solid-state reaction process. X-ray diffraction results indicated that the solubility limit of Mg in Ba 0.6Sr 0.4TiO 3 was about 3 mol%. Doping of Mg into BST led to diffused cubic-tetragonal (C-T) phase transition and reduced Curie temperature. The diffused parameter γ obtained by fitting the modified Curie-Weiss laws increased with increasing Mg content. Dielectric properties of the BSTM ceramics were measured. Figure of merit of BSTM3 was up to 127.8 at 17.5 kV/cm. Its dielectric loss was as low as 0.00133 at 1 kHz and room temperature.

AB - Ba 0.6Sr 0.4(Ti 1-xMg x)O 3 (BSTM) ceramics were prepared by using a solid-state reaction process. X-ray diffraction results indicated that the solubility limit of Mg in Ba 0.6Sr 0.4TiO 3 was about 3 mol%. Doping of Mg into BST led to diffused cubic-tetragonal (C-T) phase transition and reduced Curie temperature. The diffused parameter γ obtained by fitting the modified Curie-Weiss laws increased with increasing Mg content. Dielectric properties of the BSTM ceramics were measured. Figure of merit of BSTM3 was up to 127.8 at 17.5 kV/cm. Its dielectric loss was as low as 0.00133 at 1 kHz and room temperature.

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DO - 10.1111/j.1744-7402.2011.02628.x

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Effects of magnesium doping on phase transitions and dielectric figure of merit of barium strontium titanate ceramics

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