Characterization and dielectric properties of Sr4M2Ti4Ta6O30 (M = Pr and Eu) ceramics
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作者:
Li, Chunchun
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Guilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
Guilin Univ Technol, Key Lab Nonferrous Mat & New Proc Technol, Minist Educ, Guilin 541004, Peoples R ChinaGuilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
Li, Chunchun
[1
,2
]
Fang, Liang
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Guilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
Guilin Univ Technol, Key Lab Nonferrous Mat & New Proc Technol, Minist Educ, Guilin 541004, Peoples R ChinaGuilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
Fang, Liang
[1
,2
]
Peng, Xiyang
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Guilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
Guilin Univ Technol, Key Lab Nonferrous Mat & New Proc Technol, Minist Educ, Guilin 541004, Peoples R ChinaGuilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
Peng, Xiyang
[1
,2
]
Hu, Changzheng
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Guilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
Guilin Univ Technol, Key Lab Nonferrous Mat & New Proc Technol, Minist Educ, Guilin 541004, Peoples R ChinaGuilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
Hu, Changzheng
[1
,2
]
Wu, Bolin
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Guilin Univ Technol, Key Lab Nonferrous Mat & New Proc Technol, Minist Educ, Guilin 541004, Peoples R ChinaGuilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
Wu, Bolin
[2
]
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[1] Guilin Univ Technol, State Key Lab Breeding Base Nonferrous Met & Spec, Guilin 541004, Peoples R China
[2] Guilin Univ Technol, Key Lab Nonferrous Mat & New Proc Technol, Minist Educ, Guilin 541004, Peoples R China
Polycrystalline samples of Sr4Pr2Ti4Ta6O30 (SPIT) and Sr4Eu2Ti4Ta6O30 (SETT) were prepared by a high temperature solid-state reaction technique. The formation, structure, dielectric and ferroelectric properties of the compounds were studied. Sr4Eu2Ti4Ta6O30 is found to be a ferroelectric phase with filled tetragonal tungsten bronze (TB) structure at room temperature and undergoes a diffuse type ferroelectric-paraelectric phase transition around 90 degrees C with relaxor properties, while Sr4Pr2Ti4Ta6O30 belongs to paraelectric phase with TB structure at room temperature. At 1 MHz, SPIT exhibits a high dielectric constant of 181 and a low dielectric loss of 3.6 x 10(-3) with a negative temperature coefficient of the dielectric constant (tau(epsilon)), and SETT has a high dielectric constant of 192 and low dielectric loss of 7.7 x 10(-3) with a positive tau(epsilon) at room temperature, and heterogeneous mixtures of SPTT and SETT or a solid solution between them might be used to manufacture a tungsten bronze-structured temperature-stable dielectrics. (C) 2010 Elsevier B.V. All rights reserved.
机构:Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Fang, L
Zhang, H
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Zhang, H
Yuan, RZ
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Yuan, RZ
Dronskowski, R
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Fang, L
Zhang, H
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Zhang, H
Yang, JF
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Yang, JF
Yuan, RZ
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Yuan, RZ
Liu, HX
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Fang, L
Zhang, H
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Zhang, H
Yang, JF
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Yang, JF
Meng, FH
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Meng, FH
Yuan, RZ
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
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Wuhan Univ Technol, State Key Lab Adv Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Mat Synth & Proc, Wuhan 430070, Peoples R China
Fang, Liang
Meng, S. S.
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Meng, S. S.
Hu, Chang-Zheng
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机构:Wuhan Univ Technol, State Key Lab Adv Mat Synth & Proc, Wuhan 430070, Peoples R China
机构:Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Fang, L
Zhang, H
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Zhang, H
Yuan, RZ
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Yuan, RZ
Dronskowski, R
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Fang, L
Zhang, H
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Zhang, H
Yang, JF
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Yang, JF
Yuan, RZ
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Yuan, RZ
Liu, HX
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Fang, L
Zhang, H
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Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Zhang, H
Yang, JF
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Yang, JF
Meng, FH
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Meng, FH
Yuan, RZ
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Wuhan Univ Technol, State Key Lab Adv Mat Synth & Proc, Wuhan 430070, Peoples R ChinaWuhan Univ Technol, State Key Lab Adv Mat Synth & Proc, Wuhan 430070, Peoples R China
Fang, Liang
Meng, S. S.
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