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The viscosity of the Zr46.75Ti8.25Cu7.5Ni10Be27.5 bulk metallic glass forming alloy in the supercooled liquid

Bakke, E. and Busch, R. and Johnson, W. L. (1995) The viscosity of the Zr46.75Ti8.25Cu7.5Ni10Be27.5 bulk metallic glass forming alloy in the supercooled liquid. Applied Physics Letters, 67 (22). pp. 3260-3262. ISSN 0003-6951. http://resolver.caltech.edu/CaltechAUTHORS:BAKapl95

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Abstract

The viscosity of the Zr46.75Ti8.25Cu7.5Ni10Be27.5 bulk metallic glass forming alloy in the supercooled liquid was measured using parallel plate rheometry. The measurements were carried out with different heating rates between 0.0167 and 1.167 K/s as well as isothermally. Because of the high thermal stability above the glass transition of this bulk metallic glass former with respect to crystallization, it was possible to measure viscosities in the range from 1010 to 106 poise. This region of viscosities has not been previously measured for supercooled metallic melts. Our measurements suggest that the viscosity of the supercooled liquid of this bulk glass former exhibits a small Vogel–Fulcher temperature relative to the glass transition temperature, similar to silicate glasses.


Item Type:Article
Additional Information:©1995 American Institute of Physics. (Received 4 August 1995; accepted 17 September 1995) This work was supported by the U.S. Department of Energy (Grant No. DEFG-03-86ER45242) and the Alexander von Humboldt Foundation via the Feodor Lynen Program.
Subject Keywords:BERYLLIUM ALLOYS; COPPER ALLOYS; METALLIC GLASSES; NICKEL ALLOYS; PHASE TRANSFORMATIONS; SUBCOOLING; TEMPERATURE DEPENDENCE; TITANIUM ALLOYS; VISCOSITY; ZIRCONIUM ALLOYS; GLASS TRANSFORMATIONS; MELTS; SUPERCOOLED LIQUIDS
Record Number:CaltechAUTHORS:BAKapl95
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:BAKapl95
Alternative URL:http://dx.doi.org/10.1063/1.114891
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1995
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:28 Feb 2006
Last Modified:26 Dec 2012 08:47

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