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:
Jul. 10, 2012
Filed:
Feb. 07, 2006
Hirokazu Fujiwara, Kanonji, JP;
Norimasa Yamada, Kanonji, JP;
Yoshihisa Abe, Kanonji, JP;
Toyo Tanso Co., Ltd., Osaka, JP;
Abstract
This invention provides a tantalum carbide-coated carbon material, which has excellent corrosion resistance to reducing gases and thermal shock resistance at high temperatures, and a process for producing the same. The tantalum carbide-coated carbon material comprises a carbon substrate and a coating film provided on the carbon substrate directly or through an intermediate layer. The coating film is formed of a large number of densely aggregated fine crystals of tantalum carbide. The diffraction line of the (220) plane of tantalum carbide shows the maximum diffraction intensity in an X-ray diffraction pattern of the coating film. More preferably, this diffraction intensity is not less than four times the intensity of a diffraction line showing the second highest diffraction intensity.