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Air Products and Chemicals, Inc.

David R Taschler

Edward A Hayduk, Jr

Walter F Yext

Jenifer A Taylor

Carole A Gressler

A method of incorporating fluorine into the YBa.sub.2 Cu.sub.3 O.sub.7-x system by annealing YBa.sub.2 Cu.sub.3 O.sub.7-x powder in a fluorine-containing gas, especially NF.sub.2 gas. The YBa.sub.2 Cu.sub.3 O.sub.7-x material is annealed in the fluorine-containing gas (either pure NF.sub.3 or NF.sub.3 /O.sub.2 blend of F.sub.2 /N.sub.2 blend) at a temperature which allows sufficient reactivity with the fluorine gas while maintaining the system well below temperatures at which oxygen incorporation is observed to take place in the normal YBa.sub.2 Cu.sub.3 O.sub.7-x system.

Fluorination of superconducting YBa.sub.2 Cu.sub.3 O.sub.7-x powder

Water added to the furnace heated by an infrared or near-infrared radiation source used to fire thick-film electrical components provides finished components exhibiting desirable physical and electrical properties and surface cleanliness.

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Schnecksville, PA, United States of America

David R Taschler