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Method of making a superconducting oxide comprising contacting a melt with an oxygen-containing atmosphere

Patent ·
OSTI ID:5194688
This patent describes a method of making an article that comprises a quantity of a superconductive oxide material containing at least two distinct metal elements M and M{prime} and oxygen in a defined ratio x:y:z, respectively. It comprises: forming a melt from precursor material that contains at least one of M and M{prime} in elemental form, the precursor material selected such that the at least two metal elements M and M{prime} are present in the melt; and causing solidification of at least a part of the melt, the quantity of the superconductive oxide material being, or being derived from, the solidified part of the melt; wherein at least the part of the melt is at a temperature T, with T{sub m} {lt} T {lt} T{sub o}, where T{sub m} is the freezing temperature of the melt and T{sub o} is a melting temperature associated with the superconductive oxide material.
Assignee:
AT and T Bell Lab., Murray Hill, NJ (United States)
Patent Number(s):
US 5100870; A
Application Number:
PPN: US 7-630747
OSTI ID:
5194688
Country of Publication:
United States
Language:
English