Composite material and method of preparing same

Details Composite material and method of preparing same Composite material and method of preparing same

1994-05-09

1996-07-16

Kunemund, Robert

Superconductor technology: apparatus, material, process

Processes of producing or treating high temperature...

With melting

505451, 505729, 117 73, C30B 1902

Patent

active

055367046

ABSTRACT:
A composite material comprising a bulky substrate of a Y-series 123 metal oxide crystal, and at least one layer provided on a surface of the substrate and formed of a crystal of a Y-series 123 metal oxide. The substrate may be produced by immersing a seed material in a liquid phase which comprises components constituting the metal oxide. The liquid phase contains a solid phase located at a position different from the position at which the seed material contacts the liquid phase. The solid phase provides the liquid phase with solutes which constitute the Y-series 123 metal oxide so that the solutes are transported to the position at which the seed material and the liquid phase contact, thereby permitting the Y-series 123 metal oxide to grow on the seed material as primary crystals and to obtain the bulky substrate. The layer of a Y-series 123 metal oxide may be formed on the substrate by a sputtering method, a vacuum deposition method, a laser abrasion method, a CVD method or a liquid phase epitaxy method.

REFERENCES:
patent: 5055445 (1991-10-01), Belt et al.
patent: 5057487 (1991-10-01), Parker et al.
patent: 5057492 (1991-10-01), Oka et al.
patent: 5162297 (1992-11-01), Terashima et al.
patent: 5407907 (1995-04-01), Yamada et al.
patent: 5409892 (1995-04-01), Hayashi et al.
Japanese Journal of Applied Physics vol. 28, No. 8, Aug. 1989 pp. 1417-1420.

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