BaZrO3 insulation coatings for HTS coils

E. Celik; Y. Akin; I. H. Mutlu; W. Sigmund; Y. S. Hascicek

doi:10.1016/S0921-4534(02)01801-4

BaZrO₃ insulation coatings for HTS coils

E. Celik, Y. Akin^*, I. H. Mutlu, W. Sigmund, Y. S. Hascicek

^*Corresponding author for this work

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

20 Citations (Scopus)

Abstract

Barium zirconium oxide (BaZrO₃) thick films were grown on Ag and AgMg sheathed Bi₂Sr₂CaCu₂O_8+δ (Bi-2212) superconducting tapes for electrical insulation purposes. A BaZrO₃ (BZO) precursor solution was prepared by sol-gel synthesis using Ba and Zr based alkoxide. Reel-to-reel continuous sol-gel dip coating method was used to grow BZO coatings on superconducting tapes. Processing, microstructure and electrical properties of high temperature BZO insulation coatings have been studied. The BZO coatings were grown in the temperature range of 450 and 600 °C in air. ESEM and X-ray diffraction were used to investigate microstructure and crystallinity of the coatings. Room temperature resistance, dielectric constant, and high voltage breakdown strength of the coatings were measured to be 13 MΩ, 22.5 and 1.0 kV at 1.5 mA, respectively.

Original language	English
Pages (from-to)	355-360
Number of pages	6
Journal	Physica C: Superconductivity and its Applications
Volume	382
Issue number	4
DOIs	https://doi.org/10.1016/S0921-4534(02)01801-4
Publication status	Published - 15 Nov 2002
Externally published	Yes

Keywords

5-T coils
AgMg/Bi-2212 tape
Breakdown voltage
BZO
Dielectric constant
Insulation
Sol-gel

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10.1016/S0921-4534(02)01801-4

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title = "BaZrO3 insulation coatings for HTS coils",

abstract = "Barium zirconium oxide (BaZrO3) thick films were grown on Ag and AgMg sheathed Bi2Sr2CaCu2O8+δ (Bi-2212) superconducting tapes for electrical insulation purposes. A BaZrO3 (BZO) precursor solution was prepared by sol-gel synthesis using Ba and Zr based alkoxide. Reel-to-reel continuous sol-gel dip coating method was used to grow BZO coatings on superconducting tapes. Processing, microstructure and electrical properties of high temperature BZO insulation coatings have been studied. The BZO coatings were grown in the temperature range of 450 and 600 °C in air. ESEM and X-ray diffraction were used to investigate microstructure and crystallinity of the coatings. Room temperature resistance, dielectric constant, and high voltage breakdown strength of the coatings were measured to be 13 MΩ, 22.5 and 1.0 kV at 1.5 mA, respectively.",

keywords = "5-T coils, AgMg/Bi-2212 tape, Breakdown voltage, BZO, Dielectric constant, Insulation, Sol-gel",

author = "E. Celik and Y. Akin and Mutlu, {I. H.} and W. Sigmund and Hascicek, {Y. S.}",

year = "2002",

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doi = "10.1016/S0921-4534(02)01801-4",

language = "English",

volume = "382",

pages = "355--360",

journal = "Physica C: Superconductivity and its Applications",

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TY - JOUR

T1 - BaZrO3 insulation coatings for HTS coils

AU - Celik, E.

AU - Akin, Y.

AU - Mutlu, I. H.

AU - Sigmund, W.

AU - Hascicek, Y. S.

PY - 2002/11/15

Y1 - 2002/11/15

N2 - Barium zirconium oxide (BaZrO3) thick films were grown on Ag and AgMg sheathed Bi2Sr2CaCu2O8+δ (Bi-2212) superconducting tapes for electrical insulation purposes. A BaZrO3 (BZO) precursor solution was prepared by sol-gel synthesis using Ba and Zr based alkoxide. Reel-to-reel continuous sol-gel dip coating method was used to grow BZO coatings on superconducting tapes. Processing, microstructure and electrical properties of high temperature BZO insulation coatings have been studied. The BZO coatings were grown in the temperature range of 450 and 600 °C in air. ESEM and X-ray diffraction were used to investigate microstructure and crystallinity of the coatings. Room temperature resistance, dielectric constant, and high voltage breakdown strength of the coatings were measured to be 13 MΩ, 22.5 and 1.0 kV at 1.5 mA, respectively.

AB - Barium zirconium oxide (BaZrO3) thick films were grown on Ag and AgMg sheathed Bi2Sr2CaCu2O8+δ (Bi-2212) superconducting tapes for electrical insulation purposes. A BaZrO3 (BZO) precursor solution was prepared by sol-gel synthesis using Ba and Zr based alkoxide. Reel-to-reel continuous sol-gel dip coating method was used to grow BZO coatings on superconducting tapes. Processing, microstructure and electrical properties of high temperature BZO insulation coatings have been studied. The BZO coatings were grown in the temperature range of 450 and 600 °C in air. ESEM and X-ray diffraction were used to investigate microstructure and crystallinity of the coatings. Room temperature resistance, dielectric constant, and high voltage breakdown strength of the coatings were measured to be 13 MΩ, 22.5 and 1.0 kV at 1.5 mA, respectively.

KW - 5-T coils

KW - AgMg/Bi-2212 tape

KW - Breakdown voltage

KW - BZO

KW - Dielectric constant

KW - Insulation

KW - Sol-gel

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U2 - 10.1016/S0921-4534(02)01801-4

DO - 10.1016/S0921-4534(02)01801-4

M3 - Article

AN - SCOPUS:0037111082

SN - 0921-4534

VL - 382

SP - 355

EP - 360

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 4

ER -

BaZrO₃ insulation coatings for HTS coils

Abstract

Keywords

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