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Glassy Alloy Composite and Non-equilibrium Crystalline Alloy for Information Technology Applications

Published online by Cambridge University Press:  28 March 2011

N. Nishiyama ,
Kana Takenaka ,
Haruko Miura ,
Noriko Saidoh  and
Akihisa Inoue
N. Nishiyama
Affiliation:
RIMCOF Tohoku Univ. Lab., The Materials Process Technology Center, Katahira 2-1-1, Sendai 980-8577, Japan
Kana Takenaka
Affiliation:
RIMCOF Tohoku Univ. Lab., The Materials Process Technology Center, Katahira 2-1-1, Sendai 980-8577, Japan
Haruko Miura
Affiliation:
RIMCOF Tohoku Univ. Lab., The Materials Process Technology Center, Katahira 2-1-1, Sendai 980-8577, Japan
Noriko Saidoh
Affiliation:
RIMCOF Tohoku Univ. Lab., The Materials Process Technology Center, Katahira 2-1-1, Sendai 980-8577, Japan
Akihisa Inoue
Affiliation:
Tohoku Univ., Katahira 2-1-1, Sendai 980-8577, Japan
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Abstract

Present progress in developments of glassy alloy composites for bit-patterned-media and non-equilibrium Cu-based alloys for conductive materials of electrical connectors are reviewed. It is proven that the imprinting of the Pd-based glassy alloy thin film is favorable for the formation of nano-structured devices. Detailed imprinted morphologies formed by different imprinting conditions were examined. In addition, technology of large area imprinting up to 2.5 inches area has been successfully developed and it is now available for production. These technological developments will be utilized for next generation bit-patterned-media with high data density. A newly developed non-equilibrium Cu-Zr-Ag alloy was prepared into sheet form by the combination of casting, cold rolling and annealing. The alloy sheet exhibited high tensile strength of exceeding 1500 MPa and good electrical conductivity of 30% IACS. However, bending ductility should be improved for the actual production of connector. Through the several examinations, remaining issues that should be solved are discussed in the framework of industrialization and commercialization. These obtained results suggest that the glassy alloy composite or non-equilibrium alloy designed by the glass-forming rules have a great potential to develop innovative products in the near future.

Keywords

amorphouscompositenanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1300: Symposium U – Bulk Metallic Glasses and their Applications , 2011 , mrsf10-1300-u07-01
Copyright
Copyright © Materials Research Society 2011

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References

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