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Viscosity Measurements for La-Al-Ni liquid Alloys by an Oscillating Crucible Method

Published online by Cambridge University Press:  10 February 2011

Tohru Yamasaki ,
Tomohiro Tatibana ,
Yoshikiyo Ogino  and
Akihisa Inoue
Tohru Yamasaki
Affiliation:
Department of Materials Science & Engineering, Faculty of Engineering, Himeji Institute of Technology,2167 Shosha, Himeji, Hyogo 671–2201, JAPAN.
Tomohiro Tatibana
Affiliation:
Graduate School, Himeji Institute of Technology, Himeji, JAPAN.
Yoshikiyo Ogino
Affiliation:
Department of Materials Science & Engineering, Faculty of Engineering, Himeji Institute of Technology,2167 Shosha, Himeji, Hyogo 671–2201, JAPAN.
Akihisa Inoue
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980–8577, JAPAN.
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Abstract

The viscosity of liquid lanthanum-based and aluminum-based La-Al-Ni alloys has been measured by an oscillating crucible method of the inverse suspending type in the temperature range from melting temperature (Tm) up to about 1400 K. In the case of La55Al45-xNix (x = 10∼40 at. %) alloys, the viscosity increased with increasing Ni content up to about 20 at. % Ni and then decreased with increasing the Ni content, while the activation energy for viscous flow decreased to a minimum value at about 20 at. % Ni. This composition is well consistent with that of the La-Al-Ni alloy having largest glass-forming ability.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 554: Symposium MM – Bulk Metallic Glasses , 1998 , 63
Copyright
Copyright © Materials Research Society 1999

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