Analysis of volumetric changes through melting using a dilatometer

J. I. Frankel, W. D. Porter, A. Sabau

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A conventional push-rod dilatometer is modified in order to accurately correlate the measured density to the predicted sample temperature of alloys in the phase-change regime. This new configuration makes use of a standard furnace assembly; however, the specimen is now symmetrically encased in a well-instrumented, graphite cylindrical shell. The combination of system geometry and high-conductivity sample holder material promotes the development of a simplified heat transfer model. The solution of this model properly correlates the measured density to that of the actual sample temperature based on using remote, sample-holder temperature measurements. Preliminary results using aluminum A356 provide insight into the proposed configuration.

Original languageEnglish
Pages (from-to)171-177
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
Volume82
Issue number1
DOIs
StatePublished - Sep 2005

Funding

This work was supported under a DOE grant provided to the University of Tennessee under the Industrial Materials for the Future Program (DE-FC-7-01ID14249)

Keywords

  • Heat transfer modeling
  • Push-rod dilatometer
  • Thermophysical properties

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