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

7 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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TY - JOUR

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.

UR - https://www.scopus.com/pages/publications/84858342343

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DO - 10.1111/j.1744-7402.2011.02628.x

M3 - 文章

AN - SCOPUS:84858342343

SN - 1546-542X

VL - 9

SP - 358

EP - 365

JO - International Journal of Applied Ceramic Technology

JF - International Journal of Applied Ceramic Technology

IS - 2

ER -

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

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