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:
Oct. 16, 2012
Filed:
Apr. 25, 2007
Isao Nakatani, Ibaraki, JP;
Isao Nakatani, Ibaraki, JP;
National Institute for Materials Science, Ibaraki, JP;
Abstract
A method for producing an alloy fine particle colloid by heating and evaporating a raw material binary alloy which is in a solid state in an ambient temperature and pressure environment in a reduced-pressure environment, cooling a generated vapor for condensation and solidification and collecting a formed alloy fine particle in a liquid medium, wherein (1) when an atomic fraction of a component element in the raw material alloy is defined as X, a component ratio of each of the elements of the raw material alloy is regulated such that a fraction of a vapor pressure of the component element to the total vapor pressure of the raw material alloy falls within the range of from (X−0.1) to (X+0.1); and (2) the raw material binary alloy is an alloy species which forms a homogeneous alloy phase in an alloy ingot. Thus, an alloy fine particle colloid is rationally and efficiently produced.