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. 07, 2008
Filed:
Dec. 28, 2005
Shih-chieh Liao, Taoyuan, TW;
Jin-ming Chen, Taoyuan, TW;
Song-wein Hong, Changhua, TW;
Zhong-ren Wu, Taichung, TW;
Shih-Chieh Liao, Taoyuan, TW;
Jin-Ming Chen, Taoyuan, TW;
Song-Wein Hong, Changhua, TW;
Zhong-Ren Wu, Taichung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The present invention relates to a nanostructured metal powder and a method of fabricating the same. A twin-wire electric arc process is performed to melt the wire tips, and metal melt is formed. Simultaneously, the metal melt is broken up into melt droplets by an atomizing device. The operating temperature of the electric arc process is controlled between melting point and boiling point of the wire, to avoid vaporization of the melt droplets. Then, a fast cooling is performed to quench the melt droplets. Thus, melt droplets are solidified to μm-scaled, spherical and dense powders comprising nano-grains (d<100 nm).