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:
Jun. 25, 2013
Filed:
Nov. 25, 2008
Akihisa Inoue, Sendai, JP;
Wei Zhang, Sendai, JP;
Tao Zhang, Sendai, JP;
Japan Science and Technology Agency, Kawaguchi-shi, JP;
Abstract
The present invention provides Cu-base amorphous alloys containing an amorphous phase of 90% or more by volume fraction. The amorphous phase has a composition represented by the formula: Cu(Zr+Hf)Tior Cu(Zr+Hf')TiMT, wherein M is one or more elements selected from Fe, Cr, Mn, Ni, Co, Nb, Mo, W, Sn, Al, Ta and rare earth elements, T is one or more elements selected from the group consisting of Ag, Pd, Pt and Au, and a, b, c and d are atomic percentages falling within the following ranges: 5≦a≦55, 0≦b≦45, 30≦a+b≦60, 0.5≦c≦5, 0≦d≦10. The Cu-base amorphous alloy has a high glass-forming ability as well as excellent mechanical properties and formability, and can be formed as a rod or plate material with a diameter or thickness of 1 mm or more and an amorphous phase of 90% or more by volume fraction, through a metal mold casting process.