The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 1993
Filed:
Jul. 14, 1988
D Lynn Johnson, Wilmette, IL (US);
Quentin K Robinson, Chicago, IL (US);
Northwestern University, Evanston, IL (US);
Abstract
Textured, dense, polycrystalline ceramic bodies are produced by a sinter-compression process which exhibit anisotropic superconducting properties. The bodies are produced from low density aggregates of crystalline particles by applying compressive forces to two opposed faces while permitting the aggregate to expand perpendicularly to the axis of compression. This produces a microcrystalline structure predominately composed of elongated platelike grains having their broad faces generally aligned with the body faces to which the compression was applied. The resulting bodies exhibit room temperature conductivity several times greater in a direction parallel to their compression faces than perpendicular thereto.