Electrically Insulative Performances of Ceramic and Clay Films Deposited via Supersonic Spraying

Jong Gun Lee; Do Yeon Kim; Bhavana N. Joshi; Jong Hyuk Lee; Tae Kyu Lee; Jang soo Kim; Dae ho Yang; Woo Young Kim; Salem S. Al-Deyab; Sam S. Yoon

doi:10.1007/s11666-016-0384-x

Electrically Insulative Performances of Ceramic and Clay Films Deposited via Supersonic Spraying

Jong Gun Lee, Do Yeon Kim, Bhavana N. Joshi, Jong Hyuk Lee, Tae Kyu Lee, Jang soo Kim, Dae ho Yang, Woo Young Kim, Salem S. Al-Deyab, Sam S. Yoon

School of Mechanical Engineering

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

10 Citations (Scopus)

Abstract

Supersonic spray coating techniques were applied to deposit ceramic and clay particles as films for use in electrical insulation. TiO₂ and Al₂O₃ ceramics were aerosol-deposited under vacuum while kaolinite, montmorillonite, and bentonite clays were deposited by cold spraying in open air. The electrical resistivity of Al₂O₃ and TiO₂ were ~10⁹ and ~10⁸ Ω cm, respectively. The resistivity of kaolinite and montmorillonite were ~10¹² Ω cm. Bentonite showed the lowest electrical resistivity of ~10⁹ Ω cm among the clays because of the high cation exchange capacity of the material. The film surface morphologies and mechanical properties in the form of hardness and scratchability were also investigated.

Original language	English
Pages (from-to)	763-769
Number of pages	7
Journal	Journal of Thermal Spray Technology
Volume	25
Issue number	4
DOIs	https://doi.org/10.1007/s11666-016-0384-x
Publication status	Published - 2016 Apr 1

Keywords

aerosol deposition
ceramics
clays
cold spraying
electrical insulation

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces, Coatings and Films
Materials Chemistry

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10.1007/s11666-016-0384-x

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title = "Electrically Insulative Performances of Ceramic and Clay Films Deposited via Supersonic Spraying",

abstract = "Supersonic spray coating techniques were applied to deposit ceramic and clay particles as films for use in electrical insulation. TiO2 and Al2O3 ceramics were aerosol-deposited under vacuum while kaolinite, montmorillonite, and bentonite clays were deposited by cold spraying in open air. The electrical resistivity of Al2O3 and TiO2 were ~109 and ~108 Ω cm, respectively. The resistivity of kaolinite and montmorillonite were ~1012 Ω cm. Bentonite showed the lowest electrical resistivity of ~109 Ω cm among the clays because of the high cation exchange capacity of the material. The film surface morphologies and mechanical properties in the form of hardness and scratchability were also investigated.",

keywords = "aerosol deposition, ceramics, clays, cold spraying, electrical insulation",

author = "Lee, {Jong Gun} and Kim, {Do Yeon} and Joshi, {Bhavana N.} and Lee, {Jong Hyuk} and Lee, {Tae Kyu} and Kim, {Jang soo} and Yang, {Dae ho} and Kim, {Woo Young} and Al-Deyab, {Salem S.} and Yoon, {Sam S.}",

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doi = "10.1007/s11666-016-0384-x",

language = "English",

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T1 - Electrically Insulative Performances of Ceramic and Clay Films Deposited via Supersonic Spraying

AU - Lee, Jong Gun

AU - Kim, Do Yeon

AU - Joshi, Bhavana N.

AU - Lee, Jong Hyuk

AU - Lee, Tae Kyu

AU - Kim, Jang soo

AU - Yang, Dae ho

AU - Kim, Woo Young

AU - Al-Deyab, Salem S.

AU - Yoon, Sam S.

PY - 2016/4/1

Y1 - 2016/4/1

N2 - Supersonic spray coating techniques were applied to deposit ceramic and clay particles as films for use in electrical insulation. TiO2 and Al2O3 ceramics were aerosol-deposited under vacuum while kaolinite, montmorillonite, and bentonite clays were deposited by cold spraying in open air. The electrical resistivity of Al2O3 and TiO2 were ~109 and ~108 Ω cm, respectively. The resistivity of kaolinite and montmorillonite were ~1012 Ω cm. Bentonite showed the lowest electrical resistivity of ~109 Ω cm among the clays because of the high cation exchange capacity of the material. The film surface morphologies and mechanical properties in the form of hardness and scratchability were also investigated.

AB - Supersonic spray coating techniques were applied to deposit ceramic and clay particles as films for use in electrical insulation. TiO2 and Al2O3 ceramics were aerosol-deposited under vacuum while kaolinite, montmorillonite, and bentonite clays were deposited by cold spraying in open air. The electrical resistivity of Al2O3 and TiO2 were ~109 and ~108 Ω cm, respectively. The resistivity of kaolinite and montmorillonite were ~1012 Ω cm. Bentonite showed the lowest electrical resistivity of ~109 Ω cm among the clays because of the high cation exchange capacity of the material. The film surface morphologies and mechanical properties in the form of hardness and scratchability were also investigated.

KW - aerosol deposition

KW - ceramics

KW - clays

KW - cold spraying

KW - electrical insulation

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JF - Journal of Thermal Spray Technology

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ER -

Electrically Insulative Performances of Ceramic and Clay Films Deposited via Supersonic Spraying

Abstract

Keywords

ASJC Scopus subject areas

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