Preparation and thermal stress analysis of AI2o3 insulation coatings on ss-304 tape

S. Ataoglu; L. Arda; N. Kadioglu; O. Cakiroglu; O. Bulut; A. N. Gulluoglu; I. Belenli

doi:10.1109/TASC.2009.2018447

Preparation and thermal stress analysis of AI_2o3 insulation coatings on ss-304 tape

S. Ataoglu^*, L. Arda, N. Kadioglu, O. Cakiroglu, O. Bulut, A. N. Gulluoglu, I. Belenli

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İnşaat Mühendisliği Bölümü

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

2 Atıf (Scopus)

Özet

A1₂O₃ insulation coatings are grown on long-length stainless steel (SS) tapes using reel-to-reel sol-gel method for applications of HTS/LTS coils and magnets. Various ceramic solutions are prepared from Al based precursors, solvent and chelating agent, the coating are fabricated on SS substrates.Al₂O₃solution was successfully obtained using Al-sec-butoxide precursor, and iso- propanol and acetylacetone as solvent and chelating agents, respectively. In order to improve adhesion of Al₂ O₃ on the SS-304 tapes, triethanolamine was used in the solution. The residual stresses are investigated at different temperature ranges, between (630, 600, 580, and 550° C) and room temperature for different thicknesses (12, 10 and 7 μm). The maximum stress values are obtained as 0.756 GPa as tension on substrate (SS) for the 12 μm coating and 1.0 GPa as compression for the 7 μm A1₂O₃ coating at 630° C. The surface morphology and microstructure of samples are characterized by a scanning electron microscope (SEM). SEM observation revealed that coatings have crack and mosaic structure.

Orijinal dil	İngilizce
Makale numarası	5153099
Sayfa (başlangıç-bitiş)	2375-2378
Sayfa sayısı	4
Dergi	IEEE Transactions on Applied Superconductivity
Hacim	19
Basın numarası	3
DOI'lar	https://doi.org/10.1109/TASC.2009.2018447
Yayın durumu	Yayınlandı - Haz 2009

Finansman

Manuscript received August 26, 2008. First published June 30, 2009; current version published July 15, 2009. This work was supported by the Research Fund of Bahcesehir University. S. Ataoglu, N. Kadioglu, and O. Bulut are with the Istanbul Technical University, Faculty of Civil Engineering, Civil Engineering Department, Division of Mechanics, Maslak 34469, Istanbul, Turkey (e-mail: [email protected]; [email protected]; [email protected]). L. Arda is with Bahcesehir University, Arts and Sciences Faculty, Besiktas, 34349, Istanbul, Turkey (e-mail: [email protected]). O. Cakiroglu is with Istanbul University, Hasan Ali Yücel Faculty of Education, Beyazit, 34470, Istanbul, Turkey (e-mail: [email protected]). A. N. Gulluoglu is with Marmara University, Faculty of Engineering, Goztepe 34722 Istanbul, Turkey (e-mail: [email protected]). I. Belenli is with Abant Izzet Baysal University, Arts and Sciences Faculty, Physics Department, Bolu and Hakkari University, Hakkari, Turkey (e-mail: [email protected]). Digital Object Identifier 10.1109/TASC.2009.2018447

Finansörler	Finansör numarası
Bahcesehir University

Belgeye Erişim

10.1109/TASC.2009.2018447

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Preparation and thermal stress analysis of AI2o3 insulation coatings on ss-304 tape",

abstract = "A12O3 insulation coatings are grown on long-length stainless steel (SS) tapes using reel-to-reel sol-gel method for applications of HTS/LTS coils and magnets. Various ceramic solutions are prepared from Al based precursors, solvent and chelating agent, the coating are fabricated on SS substrates.Al2O3solution was successfully obtained using Al-sec-butoxide precursor, and iso- propanol and acetylacetone as solvent and chelating agents, respectively. In order to improve adhesion of Al2 O3 on the SS-304 tapes, triethanolamine was used in the solution. The residual stresses are investigated at different temperature ranges, between (630, 600, 580, and 550° C) and room temperature for different thicknesses (12, 10 and 7 μm). The maximum stress values are obtained as 0.756 GPa as tension on substrate (SS) for the 12 μm coating and 1.0 GPa as compression for the 7 μm A12O3 coating at 630° C. The surface morphology and microstructure of samples are characterized by a scanning electron microscope (SEM). SEM observation revealed that coatings have crack and mosaic structure.",

keywords = "Al O, Electrical insulation and superconducting magnet, Sol-gel, Thermal stress",

author = "S. Ataoglu and L. Arda and N. Kadioglu and O. Cakiroglu and O. Bulut and Gulluoglu, {A. N.} and I. Belenli",

year = "2009",

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volume = "19",

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AU - Ataoglu, S.

AU - Arda, L.

AU - Kadioglu, N.

AU - Cakiroglu, O.

AU - Bulut, O.

AU - Gulluoglu, A. N.

AU - Belenli, I.

PY - 2009/6

Y1 - 2009/6

N2 - A12O3 insulation coatings are grown on long-length stainless steel (SS) tapes using reel-to-reel sol-gel method for applications of HTS/LTS coils and magnets. Various ceramic solutions are prepared from Al based precursors, solvent and chelating agent, the coating are fabricated on SS substrates.Al2O3solution was successfully obtained using Al-sec-butoxide precursor, and iso- propanol and acetylacetone as solvent and chelating agents, respectively. In order to improve adhesion of Al2 O3 on the SS-304 tapes, triethanolamine was used in the solution. The residual stresses are investigated at different temperature ranges, between (630, 600, 580, and 550° C) and room temperature for different thicknesses (12, 10 and 7 μm). The maximum stress values are obtained as 0.756 GPa as tension on substrate (SS) for the 12 μm coating and 1.0 GPa as compression for the 7 μm A12O3 coating at 630° C. The surface morphology and microstructure of samples are characterized by a scanning electron microscope (SEM). SEM observation revealed that coatings have crack and mosaic structure.

AB - A12O3 insulation coatings are grown on long-length stainless steel (SS) tapes using reel-to-reel sol-gel method for applications of HTS/LTS coils and magnets. Various ceramic solutions are prepared from Al based precursors, solvent and chelating agent, the coating are fabricated on SS substrates.Al2O3solution was successfully obtained using Al-sec-butoxide precursor, and iso- propanol and acetylacetone as solvent and chelating agents, respectively. In order to improve adhesion of Al2 O3 on the SS-304 tapes, triethanolamine was used in the solution. The residual stresses are investigated at different temperature ranges, between (630, 600, 580, and 550° C) and room temperature for different thicknesses (12, 10 and 7 μm). The maximum stress values are obtained as 0.756 GPa as tension on substrate (SS) for the 12 μm coating and 1.0 GPa as compression for the 7 μm A12O3 coating at 630° C. The surface morphology and microstructure of samples are characterized by a scanning electron microscope (SEM). SEM observation revealed that coatings have crack and mosaic structure.

KW - Al O

KW - Electrical insulation and superconducting magnet

KW - Sol-gel

KW - Thermal stress

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