Bhattacharya, Dipten and Roy, S N and Basu, Rajendra Nath and Das Sharma, Abhijit and Maiti, Himadri Sekhar (1993) Critical-current in electrophoretically deposited thick-films of YBCO superconductor. Materials Letters, 16 (6). pp. 337-341. ISSN 0167-577X

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Abstract

Thick films of YB2Cu3O7-delta (YBCO) superconductor have been prepared by the electrophoretic deposition technique using a flexible silver strip as the substrate. Effects of several deposition parameters, e.g., time of deposition, particle size of the powder, number of layers deposited, etc., on the various properties of the films have been studied in detail. Microstructural investigation of the films indicates extensive grain growth and recrystallization phenomena particularly in films of large thickness. The microstructural morphology changes significantly as the thickness decreases. The transport J(c) (at 77 K, B = 0) increases from almost-equal-to 450 A/cm2 for a film thickness of almost-equal-to 65 mum to > 4000 A/cm2 for a reduced thickness of almost-equal-to 3 mum. Possible reasons for this dimensional dependence are discussed.

Item Type:	Article
Subjects:	Electronics
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	20 Aug 2013 08:21
Last Modified:	20 Mar 2016 15:12
URI:	http://cgcri.csircentral.net/id/eprint/2020

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