Enhanced pyroelectric properties of porous Ba0.67Sr0.33TiO3 ceramics fabricated with carbon nanotubes

Shenglin Jiang; Pin Liu; Xiaoshan Zhang; Ling Zhang; Qi Li; Junlong Yao; Yike Zeng; Qing Wang; Guangzu Zhang

doi:10.1016/j.jallcom.2015.02.153

Enhanced pyroelectric properties of porous Ba_0.67Sr_0.33TiO₃ ceramics fabricated with carbon nanotubes

Shenglin Jiang, Pin Liu, Xiaoshan Zhang, Ling Zhang, Qi Li, Junlong Yao, Yike Zeng, Qing Wang, Guangzu Zhang

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

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Abstract

Porous Ba_0.67Sr_0.33TiO₃ pyroelectric ceramics were fabricated with carbon nanotubes (CNTs) as pore formers and the micro-structural, dielectric, and pyroelectric properties were systemically investigated. The porous BST ceramic fabricated with CNTs exhibited extremely high pyroelectric coefficient of 9500 μc/m² °C and figure-of-merit of 32.0 × 10^-5 Pa^-0.5 which were 2 and 3 times those of their dense counterpart, along with lower dielectric constant and heat capacity. Compared further with porous BST fabricated with methyl methacrylate as pore former, porous BST fabricated with CNTs also showed higher pyroelectric coefficient and figure-of-merit. All of these improvements are beneficial for the development of pyroelectric devices. Possible reasons for the significant enhancement in pyroelectric performances of the porous ceramics were discussed.

Original language	English (US)
Pages (from-to)	93-96
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	636
DOIs	https://doi.org/10.1016/j.jallcom.2015.02.153
State	Published - Jul 5 2015

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2015.02.153

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@article{6922569fb9a74a8e915f80f1f1770768,

title = "Enhanced pyroelectric properties of porous Ba0.67Sr0.33TiO3 ceramics fabricated with carbon nanotubes",

abstract = "Porous Ba0.67Sr0.33TiO3 pyroelectric ceramics were fabricated with carbon nanotubes (CNTs) as pore formers and the micro-structural, dielectric, and pyroelectric properties were systemically investigated. The porous BST ceramic fabricated with CNTs exhibited extremely high pyroelectric coefficient of 9500 μc/m2 °C and figure-of-merit of 32.0 × 10-5 Pa-0.5 which were 2 and 3 times those of their dense counterpart, along with lower dielectric constant and heat capacity. Compared further with porous BST fabricated with methyl methacrylate as pore former, porous BST fabricated with CNTs also showed higher pyroelectric coefficient and figure-of-merit. All of these improvements are beneficial for the development of pyroelectric devices. Possible reasons for the significant enhancement in pyroelectric performances of the porous ceramics were discussed.",

author = "Shenglin Jiang and Pin Liu and Xiaoshan Zhang and Ling Zhang and Qi Li and Junlong Yao and Yike Zeng and Qing Wang and Guangzu Zhang",

note = "Funding Information: The present study was supported by the National Nature Science Foundation of China (6 1378076 ), Research Fund of the Doctoral Program of Higher Education of China ( 20110142120074 ), National Key Scientific Instrument and Equipment Development Projects of China ( 2013YQ160551 ) and Science and Technology Project of Guangzhou ( 201300000009 ). The authors also wish to thank the Analytical and Testing Center of Huazhong University of Science and Technology. Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = jul,

day = "5",

doi = "10.1016/j.jallcom.2015.02.153",

language = "English (US)",

volume = "636",

pages = "93--96",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

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TY - JOUR

T1 - Enhanced pyroelectric properties of porous Ba0.67Sr0.33TiO3 ceramics fabricated with carbon nanotubes

AU - Jiang, Shenglin

AU - Liu, Pin

AU - Zhang, Xiaoshan

AU - Zhang, Ling

AU - Li, Qi

AU - Yao, Junlong

AU - Zeng, Yike

AU - Wang, Qing

AU - Zhang, Guangzu

N1 - Funding Information: The present study was supported by the National Nature Science Foundation of China (6 1378076 ), Research Fund of the Doctoral Program of Higher Education of China ( 20110142120074 ), National Key Scientific Instrument and Equipment Development Projects of China ( 2013YQ160551 ) and Science and Technology Project of Guangzhou ( 201300000009 ). The authors also wish to thank the Analytical and Testing Center of Huazhong University of Science and Technology. Publisher Copyright: © 2015 Elsevier B.V.

PY - 2015/7/5

Y1 - 2015/7/5

N2 - Porous Ba0.67Sr0.33TiO3 pyroelectric ceramics were fabricated with carbon nanotubes (CNTs) as pore formers and the micro-structural, dielectric, and pyroelectric properties were systemically investigated. The porous BST ceramic fabricated with CNTs exhibited extremely high pyroelectric coefficient of 9500 μc/m2 °C and figure-of-merit of 32.0 × 10-5 Pa-0.5 which were 2 and 3 times those of their dense counterpart, along with lower dielectric constant and heat capacity. Compared further with porous BST fabricated with methyl methacrylate as pore former, porous BST fabricated with CNTs also showed higher pyroelectric coefficient and figure-of-merit. All of these improvements are beneficial for the development of pyroelectric devices. Possible reasons for the significant enhancement in pyroelectric performances of the porous ceramics were discussed.

AB - Porous Ba0.67Sr0.33TiO3 pyroelectric ceramics were fabricated with carbon nanotubes (CNTs) as pore formers and the micro-structural, dielectric, and pyroelectric properties were systemically investigated. The porous BST ceramic fabricated with CNTs exhibited extremely high pyroelectric coefficient of 9500 μc/m2 °C and figure-of-merit of 32.0 × 10-5 Pa-0.5 which were 2 and 3 times those of their dense counterpart, along with lower dielectric constant and heat capacity. Compared further with porous BST fabricated with methyl methacrylate as pore former, porous BST fabricated with CNTs also showed higher pyroelectric coefficient and figure-of-merit. All of these improvements are beneficial for the development of pyroelectric devices. Possible reasons for the significant enhancement in pyroelectric performances of the porous ceramics were discussed.

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Enhanced pyroelectric properties of porous Ba_0.67Sr_0.33TiO₃ ceramics fabricated with carbon nanotubes

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