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 language | English |
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Pages (from-to) | 171-177 |
Number of pages | 7 |
Journal | Journal of Thermal Analysis and Calorimetry |
Volume | 82 |
Issue number | 1 |
DOIs | |
State | Published - 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