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.

Date of Patent:
Nov. 22, 2016

Filed:

Aug. 23, 2013
Applicants:

Heraeus Materials Technology North America Llc, Chandler, AZ (US);

Heraeus Materials Technology Gmbh & Co. KG, Hanau, DE;

Inventors:

Hans Jürgen Wachter, Rödermark, DE;

Frank Krüger, Nidderau, DE;

Bernd Kunkel, Phoenix, AZ (US);

Xiaoyun Wang, Phoenix, AZ (US);

Doug Shearer, Tempe, AZ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 45/10 (2006.01); C22C 1/00 (2006.01); C22C 1/02 (2006.01); C22C 16/00 (2006.01);
U.S. Cl.
CPC ...
C22C 45/10 (2013.01); C22C 1/002 (2013.01); C22C 1/02 (2013.01); C22C 16/00 (2013.01); C21D 2201/03 (2013.01);
Abstract

A class of alloys is provided that form metallic glass upon cooling below the glass transition temperature Tg at a rate below 100° K/sec. The alloys have a high value of temperature difference (DT) between the crystallization temperature (Tx) and the glass transition temperature (Tg) of the intermetallic alloy. Such alloys comprise zirconium in the range of 70 to 80 weight percent, beryllium in the range of 0.8 to 5 weight percent, copper in the range of 1 to 15 weight percent, nickel in the range of 1 to 15 weight percent, aluminum in the range of 1 to 5 weight percent and niobium in the range of 0.5 to 3 weight percent, or narrower ranges depending on other alloying elements and the critical cooling rate and value of DT desired. Furthermore, methods are provided for making such metallic glasses.


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