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Title:
AMORPHOUS METAL COMPOSITE AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2014088622
Kind Code:
A
Abstract:

To provide an amorphous metal composite and a method for producing the same.

An alloy is heated to a high temperature higher than the liquidus temperature. When the melt at a high temperature is cooled, dendrites are formed in the melt by the density distribution of the alloy. When the remaining melt is cooled to a low temperature lower than the glass transition temperature, the melt is solidified into the amorphous state and a two-phase structure in which crystalline particles are present in an amorphous metal matrix is formed. The ductile metal particles have a particle diameter of 0.1 to 15 μm and a particle spacing of 0.1 to 20 μm, preferably a particle diameter of 0.5 to 8 μm and a particle spacing of 1 to 10 μm. The volume percentage of particles is 5 to 50% and preferably 15 to 35%. The dendrites of the ductile metal phase in the amorphous matrix can be oriented by directional cooling.


Inventors:
HAYS CHARLES C
KIM CHOONG PAUL
JOHNSON WILLIAM L
Application Number:
JP2013257353A
Publication Date:
May 15, 2014
Filing Date:
December 12, 2013
Export Citation:
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Assignee:
CALIFORNIA INST OF TECHN
International Classes:
C22C16/00; C22C9/00; C22C47/00; C22C14/00; C22C25/00; C22C30/00; C22C33/00; C22C45/10; C22C49/02; C22F1/08; C22F1/16; C22F1/18; C22C111/00; C22F1/00
Domestic Patent References:
JP2002544386A2002-12-24
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama