Published 1991 | Version v1
Report Open

Microstructure and composition of electromagnetically-characterized YBa2Cu3O7-δ grain boundaries

Creators

  • 1. Wisconsin Univ., Madison, WI (United States)
  • 2. Argonne National Lab., IL (United States)
  • 3. National Inst. of Standards and Technology (IMSE), Gaithersburg, MD (United States). Ceramics Div.

Description

The electrical character (flux-pinning, Josephson junction, or resistive) of the grain boundaries in approximately twenty flux-grown YBa2Cu3O7-δ bicrystals was determined in previous studies. A selection of these same bicrystals now have been thinned for study by transmission and scanning transmission electron microscopy. High-spatial resolution imaging and analytical techniques reveal microstructural differences among these boundaries that are consistent with their diverse electrical characteristics. The observations offer preliminary insight into some of the feature that control the grain boundary superconducting properties and re-emphasize the very fine scale on which the grain boundary electrical character is determined. 11 refs., 6 figs

Availability note (English)

MF available from INIS under the Report Number; OSTI as DE92003520; NTIS; INIS; US Govt. Printing Office Dep.

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Additional details

Publishing Information

Imprint Pagination
7 p.
Report number
ANL/CP--74697

Conference

Title
2. Tokai University international workshop on superconductivity.
Dates
9-12 Oct 1991.
Place
Honolulu, HI (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23021468
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM OXIDES; COPPER OXIDES; CRITICAL CURRENT; CURRENT DENSITY; GRAIN BOUNDARIES; HIGH-TC SUPERCONDUCTORS; MICROSTRUCTURE; POLYCRYSTALS; TRANSMISSION ELECTRON MICROSCO; X-RAY DIFFRACTION; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; CRYSTAL STRUCTURE; CRYSTALS; CURRENTS; DIFFRACTION; ELECTRIC CURRENTS; ELECTRON MICROSCOPY; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; SCATTERING; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS

Optional Information

Contract/Grant/Project number
Contract W-31109-ENG-38; Contract DMR88-09854
Funding organization
USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States).
Secondary number(s)
CONF-9110181--1.