Campus Units

Materials Science and Engineering, Ames Laboratory

Document Type

Conference Proceeding

Conference

1992 Applied Superconductivity Conference

Publication Version

Accepted Manuscript

Link to Published Version

https://inis.iaea.org/search/search.aspx?orig_q=RN:24035094

Publication Date

1992

Journal or Book Title

INIS

Volume

24

Issue

9

First Page

ANL/CP--77532

Conference Title

1992 Applied Superconductivity Conference

Conference Date

August 23-28, 1992

City

Chicago, IL

Abstract

Solidification and subsequent annealing of Bi2Sr2CaCu2Oy (2212) in oxygen and argon atmospheres were investigated in order to identify alternative processing routes for controlling microstructures and superconducting properties. In addition to 2212, several other phases formed on cooling in O2 and did not disappear upon subsequent annealing. Crystallization in Ar resulted in a divorced eutetic structure of Bi2Sr3-xCaxOy and Cu2O/CuO. The superconductor was formed on subsequent anneals. Samples melted in Ar and then annealed generally possessed a more uniform microstructure compared with samples that were melted in oxygen and annealed. Compositional measurements of the 2212 phase suggest that CaO segregation in the melt may be minimized with an overall composition such as Bi2.15Sr2Ca0.85Cu2Oy.

Comments

This is a manuscript of a proceeding published as Holesinger, T.G., D.J. Miller, and L.S. Chumbley. "Melt processing of the Bi2Sr2CaCu2Oy superconductor in oxygen and argon atmospheres." INIS 24, no. 9 (1992): ANL/CP--77532. Posted with permission.

Copyright Owner

IAEA

Language

en

File Format

application/pdf

Published Version

Included in

Metallurgy Commons

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Article Location

 
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