Dielectric characteristics of ferroelectric Sr0.7 Ba 0.3Nb2O6 ceramics with different Nb 2O5 content

Myoung Sup Kim; Joon Hyung Lee; Jeong Joo Kim; Hee Young Lee; Sang Hee Cho

doi:10.1080/713716102

Dielectric characteristics of ferroelectric Sr_0.7 Ba _0.3Nb₂O₆ ceramics with different Nb ₂O₅ content

Myoung Sup Kim, Joon Hyung Lee, Jeong Joo Kim, Hee Young Lee, Sang Hee Cho

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

Abstract

The effect of Nb 2 O 5 content on dielectric characteristics of Sr 0.7 Ba 0.3 Nb 2 O 6 was investigated. The specimens with stoichiometry, Nb 2 O 5 -deficient, and Nb 2 O 5 -excess SBN70 were sintered at 1350C for two hours. X-ray diffraction analysis of Nb 2 O 5 -excess and Nb 2 O 5 -deficient specimens revealed second phases of Ba 3 Nb 10 O 28 and Sr 2 Nb 2 O 7 solid solutions, respectively. The formation of the second phases resulted in the change of Sr/Ba ratio in the matrix, which led to the variation of Curie temperature. The dielectric constant and DPT phenomena as a function of Nb 2 O 5 content were also analyzed.

Original language	English
Pages (from-to)	123-128
Number of pages	6
Journal	Ferroelectrics
Volume	270
DOIs	https://doi.org/10.1080/713716102
State	Published - 1 Jan 2002

Keywords

Dielectric
DPT
SBN
Second phase
Tungsten bronze

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10.1080/713716102

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title = "Dielectric characteristics of ferroelectric Sr0.7 Ba 0.3Nb2O6 ceramics with different Nb 2O5 content",

abstract = "The effect of Nb 2 O 5 content on dielectric characteristics of Sr 0.7 Ba 0.3 Nb 2 O 6 was investigated. The specimens with stoichiometry, Nb 2 O 5 -deficient, and Nb 2 O 5 -excess SBN70 were sintered at 1350C for two hours. X-ray diffraction analysis of Nb 2 O 5 -excess and Nb 2 O 5 -deficient specimens revealed second phases of Ba 3 Nb 10 O 28 and Sr 2 Nb 2 O 7 solid solutions, respectively. The formation of the second phases resulted in the change of Sr/Ba ratio in the matrix, which led to the variation of Curie temperature. The dielectric constant and DPT phenomena as a function of Nb 2 O 5 content were also analyzed.",

keywords = "Dielectric, DPT, SBN, Second phase, Tungsten bronze",

author = "Kim, {Myoung Sup} and Lee, {Joon Hyung} and Kim, {Jeong Joo} and Lee, {Hee Young} and Cho, {Sang Hee}",

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doi = "10.1080/713716102",

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T1 - Dielectric characteristics of ferroelectric Sr0.7 Ba 0.3Nb2O6 ceramics with different Nb 2O5 content

AU - Kim, Myoung Sup

AU - Lee, Joon Hyung

AU - Kim, Jeong Joo

AU - Lee, Hee Young

AU - Cho, Sang Hee

PY - 2002/1/1

Y1 - 2002/1/1

N2 - The effect of Nb 2 O 5 content on dielectric characteristics of Sr 0.7 Ba 0.3 Nb 2 O 6 was investigated. The specimens with stoichiometry, Nb 2 O 5 -deficient, and Nb 2 O 5 -excess SBN70 were sintered at 1350C for two hours. X-ray diffraction analysis of Nb 2 O 5 -excess and Nb 2 O 5 -deficient specimens revealed second phases of Ba 3 Nb 10 O 28 and Sr 2 Nb 2 O 7 solid solutions, respectively. The formation of the second phases resulted in the change of Sr/Ba ratio in the matrix, which led to the variation of Curie temperature. The dielectric constant and DPT phenomena as a function of Nb 2 O 5 content were also analyzed.

AB - The effect of Nb 2 O 5 content on dielectric characteristics of Sr 0.7 Ba 0.3 Nb 2 O 6 was investigated. The specimens with stoichiometry, Nb 2 O 5 -deficient, and Nb 2 O 5 -excess SBN70 were sintered at 1350C for two hours. X-ray diffraction analysis of Nb 2 O 5 -excess and Nb 2 O 5 -deficient specimens revealed second phases of Ba 3 Nb 10 O 28 and Sr 2 Nb 2 O 7 solid solutions, respectively. The formation of the second phases resulted in the change of Sr/Ba ratio in the matrix, which led to the variation of Curie temperature. The dielectric constant and DPT phenomena as a function of Nb 2 O 5 content were also analyzed.

KW - Dielectric

KW - DPT

KW - SBN

KW - Second phase

KW - Tungsten bronze

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JO - Ferroelectrics

JF - Ferroelectrics

ER -

Dielectric characteristics of ferroelectric Sr_0.7 Ba _0.3Nb₂O₆ ceramics with different Nb ₂O₅ content

Abstract

Keywords

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