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:
Jun. 11, 1991
Filed:
Jan. 22, 1990
Richard Everhart, Hendersonville, NC (US);
Paul Bosomworth, Hendersonville, NC (US);
Kenneth Butcher, Hendersonville, NC (US);
Matthias Hoffmann, Hendersonville, NC (US);
Swiss Aluminum Ltd., Chippis, CH;
Abstract
The present invention relates to ceramic bodies suitable for use in high temperature applications such as molten metal filters and kiln furniture. The ceramic bodies are formed from partially stabilized zirconia and are characterized by the presence of from about 12% to about 80% by weight zirconia in a monoclinic phase and the balance essentially in a cubic phase at room temperature. The ceramic bodies possess an excellent combination of physical properties including high temperature strength and thermal shock resistance. The invention also relates to the process for forming the ceramic bodies and the thixotropic ceramic slurry used therein.