Metal oxide material with Ln, Sr, Cu, O, optionally Ca, and at l

Details Metal oxide material with Ln, Sr, Cu, O, optionally Ca, and at l Metal oxide material with Ln, Sr, Cu, O, optionally Ca, and at l

1995-06-07

1996-12-10

McGinty, Douglas J.

Superconductor technology: apparatus, material, process

High temperature , per se

Copper containing

505781, 505778, 505125, 505779, 505780, 501123, 252521, 252520, 252519, 252518, H01B 1200, C04B 3545, C04B 3550, C04B 35505

Patent

active

055830935

ABSTRACT:
Provided is a metal oxide material represented by the composition formula of Ln.sub.a Sr.sub.b Cu.sub.3-x M.sub.x O.sub.c, where 2.7.ltoreq.a+b.ltoreq.3.3; 0.8 .ltoreq.a.ltoreq.1.2; 6.ltoreq.c.ltoreq.9; and 0.05 .ltoreq.x.ltoreq.0.7, Ln is at least one element selected from the group of elements of Y and lanthanoids or an atomic group consisting of said elements, and M is at least one element selected from the group of elements of Ti, V, Ga, Ge, Mo, W and Re or an atomic group consisting of said elements.

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"High-Pressure synthesis of superconducting YSr.sub.2 Cu.sub.3 O.sub.y, La.sub.1.7 Ca.sub.13 Cu.sub.2 O.sub.y and etc.," Reported by B. Okai, Preprint for Autumnal Meeting of Japan Physical Society, Third Part, p. 243, 1990 month not known.
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Den, Tohru, et al., "Preparation and properties of YSr.sub.2 Cu.sub.3-x M.sub.x O.sub.y (M=Li, Al, Ti, V, Cr, Fe, Co, Ga, Ge, Mo, W and Re)", Physica C, 196, 1 & 2) (10 Jun. 1992), 141-152.
Slater, P. R., et al., "Synthesis and structural characterisation of YSr.sub.2 Cu.sub.3-x M.sub.x O.sub.7.+-.y (M=Fe, Ti, Al, Co, G, Pb; 0.5<x<1), and the non-existence of the parent phase YSr.sub.2 Cu.sub.3 O.sub.y ", Physica C, 180 (5&6) (15 Sep. 1991), 299-306.
Roth, G., et al., "The crystal structure of RESr2GaCu207", Journal de Physique I, 1 (5) (May 1991), 721-741.

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