Project Title:

Robust High-Tc Ribbon for Power Transmission

10.07-9450
NAS7-1092
Robust High-Tc Ribbon for Power Transmission
EIC Laboratories, Inc.
	111 Downey Street
	Norwood, MA 02062
		James D. Klein
(617-769-9450)

Abstract:

	This project will develop a method for producing flexible, high-Tc, superconducting
ribbons for space power transmission applications. It will address mechanical integrity,
critical- current density, and scale-up capability essential for the use of ceramic
superconductors. Dual, ion-beam deposition techniques will be employed to grow films
of YBa2Cu3O7 and Bi2Sr2Ca2Cu3Ox on a textured, metallic-foil substrate. The markedly
oriented grain structure provided by epitaxial growth will permit high critical-current
densities in the plane of the polycrystalline, superconducting material. Robust mechanical
properties will result from the metallic substrate and the inherent flexibility of
the thin foil design. Commercial production would utilize multiple-beam, sputter
roll coaters to give a wide, continuous sheet of conductor foil that would be slit
and wound for each application. Phase I will demonstrate the production of crystallographically
oriented, superconducting thin films on metal foil substrate. Process refinement,
extension to other superconducting oxides, and scale-up technology would occur in
Phase II.

Potential Commercial Application:

Potential Commercial Applications: A flexible, high-Tc superconductor ribbon having
a high critical- current density would have commercial application in magnets, electrical
machinery, power transmission, and shielding applications.