CaltechAUTHORS
  A Caltech Library Service

Crystallization kinetics of the bulk-glass-forming Pd43Ni10Cu27P20 melt

Schroers, Jan and Johnson, William L. and Busch, Ralf (2000) Crystallization kinetics of the bulk-glass-forming Pd43Ni10Cu27P20 melt. Applied Physics Letters, 77 (8). pp. 1158-1160. ISSN 0003-6951. http://resolver.caltech.edu/CaltechAUTHORS:SCHRapl00b

[img]
Preview
PDF
See Usage Policy.

52Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:SCHRapl00b

Abstract

The crystallization of undercooled Pd43Ni10Cu27P20 melts is studied under isothermal conditions and at constant heating and cooling rates. Investigations are carried out by fluxing the melt with B2O3 and without any fluxing material. The isothermal experiments allow us to determine the complete time–temperature-transformation diagram with a minimum crystallization time of about 200 s for the fluxed melt and about 130 s for the unfluxed Pd43Ni10Cu27P20 melt. The results of the experiments at constant cooling and heating rates are summarized in a continuous heating and cooling diagram. The critical cooling rate for the fluxed alloy is determined to be 0.09 K/s, whereas the critical heating rate is 6 K/s. For the unfluxed Pd43Ni10 Cu27P20, 0.4 and 9 K/s are found, respectively. This alloy exhibits the most sluggish crystallization kinetics of all metallic systems known so far.


Item Type:Article
Additional Information:©2000 American Institute of Physics. (Received 31 January 2000; accepted 20 June 2000) This work was supported by the National Aeronautics and Space Administration (J.S. and W.L.J.) under Grant No. NCC8-119 and the Department of Energy under Grant No. DEFG-03086ER45242 (R.B.).
Subject Keywords:PALLADIUM ALLOYS; NICKEL ALLOYS; COPPER ALLOYS; PHOSPHORUS; CRYSTALLIZATION; GLASS; PHASE DIAGRAMS; COOLING; HEATING; phosphorus alloys; metallic glasses; crystallisation; isothermal transformations
Issue or Number:8
Record Number:CaltechAUTHORS:SCHRapl00b
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:SCHRapl00b
Alternative URL:http://dx.doi.org/10.1063/1.1289033
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8534
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:17 Aug 2007
Last Modified:26 Dec 2012 09:39

Repository Staff Only: item control page