Patent ID: 8308877

Claim:
A method for preparing a Zr-based amorphous alloy, comprising: melting a raw material comprising one or more metals selected from the group consisting of: Zr; Al; Cu; Ni; Sc; and Y, to form a melted alloy; and molding the melted alloy with cooling to form an amorphous alloy; wherein the amorphous alloy is represented by the general formula of: (Zr x Al y Cu z Ni 1-x-y-z ) 100-a-b Sc a Y b , wherein x, y, and z are atomic percents, and a and b are atom molar ratios, in which: about 0.5≦x≦about 0.55; about 0.08≦y≦about 0.10; about 0.28≦z≦about 0.32; 3<a≦about 5; and 0.0≦b<about 0.1.