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:
Mar. 19, 2024
Filed:
Mar. 01, 2018
Schunk Kohlenstofftechnik Gmbh, Heuchelheim, DE;
Karl Brennfleck, Karlsruhe, DE;
Johannes Galle, Hundsangen, DE;
Dennis Muscutt, Lollar, DE;
Volker Rauhut, Buseck, DE;
SCHUNK KOHLENSTOFFTECHNIK GMBH, Heuchelheim, DE;
Abstract
The invention relates to a method for producing a product, to a crucible and to the use of a layer of crystalline silicon nitride, the product being formed from a material consisting mainly of carbon or of a ceramic material, the product being coated with surface layer by chemical vapor deposition (CVD), wherein the product is coated with a surface layer of at least semi-crystalline, preferably crystalline silicon nitride (SiN), the surface layer being formed on the product at a process temperature of more than 1100° C. to 1700° C.