Directional isothermal growth of highly textured Bi2Sr2CaCu2Oy

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1993-06-04
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Holesinger, T.
Miller, D.
Viswanathan, H.
Dennis, K.
Winandy, P.
Youngdahl, A.
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Ames National Laboratory

Ames National Laboratory is a government-owned, contractor-operated national laboratory of the U.S. Department of Energy (DOE), operated by and located on the campus of Iowa State University in Ames, Iowa.

For more than 70 years, the Ames National Laboratory has successfully partnered with Iowa State University, and is unique among the 17 DOE laboratories in that it is physically located on the campus of a major research university. Many of the scientists and administrators at the Laboratory also hold faculty positions at the University and the Laboratory has access to both undergraduate and graduate student talent.

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Materials Science and Engineering

The Department of Materials Science and Engineering teaches the composition, microstructure, and processing of materials as well as their properties, uses, and performance. These fields of research utilize technologies in metals, ceramics, polymers, composites, and electronic materials.

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The Department of Materials Science and Engineering was formed in 1975 from the merger of the Department of Ceramics Engineering and the Department of Metallurgical Engineering.

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1975-present

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For Bi2Sr2CaCu2Oy (2212), it is shown that an oxygen gradient, as opposed to a temperature gradient, can be used to produce large bulk forms of the 2212 superconductor with highly textured microstructures from an oxygen‐deficient melt held at a constant temperature. Material produced in this manner was found to have transition temperatures between 85 and 92 K, high critical current densities below 20 K, and modest critical current densities at 77 K.

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This article is published as Holesinger, T. G., D. J. Miller, H. K. Viswanathan, K. W. Dennis, L. Scott Chumbley, P. W. Winandy, and A. C. Youngdahl. "Directional isothermal growth of highly textured Bi2Sr2CaCu2O y." Applied Physics Letters 63, no. 7 (1993): 982-984. DOI: 10.1063/1.109865.

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Fri Jan 01 00:00:00 UTC 1993
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