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. 10, 2003
Filed:
Jul. 28, 2000
Steven R. Schenck, Brighton, MI (US);
Karl W. Dersch, Okemos, MI (US);
Lloyd R. Chapman, Knoxville, TN (US);
Cressie E. Holcombe, Jr., Knoxville, TN (US);
William B. Webb, Oak Ridge, TN (US);
Christopher W. Ivey, Powell, TN (US);
Other;
Abstract
A fully inorganic boron nitride paste, containing 80 to 94% of a boron nitride paint and 6 to 20% of ceramic fibers, is provided to allow the process of manufacturing boron nitride “shell” coatings of 0.0313 to 0.25 inch onto ceramic substrates chosen from a wide range of densities. De-clumping of the ceramic fibers such that fiber lengths are greater than 100 micrometers and clumps are less than {fraction (3/32)} inch improves boron nitride “shell” layer uniformity. Boron nitride content of greater than 36 wt. % (or about 50 vol. %) in the boron nitride “shell” provides ceramic structures with a matrix of boron nitride that provides long-term nonwetting behavior for molten nonferrous metals.