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. 19, 1994
Filed:
Jan. 27, 1993
Tsuneaki Ohashi, Ohgaki, JP;
Nobuo Tsuno, Kasugai, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A shaped material comprising powders of alloys containing easily oxidizable elements is fired in a hydrogen-based atmosphere containing at least one hydrocarbon gas in a total amount of 0.01-5.0 volume %. Therefore, the amount of oxides formed on the surfaces of material powder particles is reduced, and the sinterability of powder particle surfaces is improved owing to the sticking of atomic carbon thereto and thereby the mutual diffusion of powder particles becomes easy. As a result, there can be obtained a sintered alloy of desired density, superior in oxidation resistance, etc.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile