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:
Aug. 10, 1999
Filed:
Dec. 02, 1997
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A formed porous body of oxide ceramic and an aluminum alloy block are placed in a crucible in an atmospheric furnace, and a magnesium source is placed in another crucible in the atmospheric furnace. An argon gas is then introduced into the atmospheric furnace, which is then heated to produce a magnesium vapor from the magnesium source and melt the aluminum alloy block. Then, the argon gas is replaced with a nitrogen gas to generate magnesium nitride. The magnesium nitride reduces an oxide on surfaces of the formed porous body, exposing metal atoms on the surfaces of the formed porous body. The molten aluminum alloy permeates the formed porous body under a pressure lower or higher than the atmospheric pressure or alternate pressures lower and higher than the atmospheric pressure.