Specific Heat of High Purity Iron by a Pulse Heating Method
- 1 January 1960
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 31 (1) , 168-176
- https://doi.org/10.1063/1.1735393
Abstract
A dynamic pulse‐heating method has been developed for measuring with an error of less than 2% the specific heats of metal wires from room temperature to 1000°C. The method consists essentially of recording the resistance of the sample wire while it is being heated by a pulse of large current and short time duration; then obtaining the temperature of the wire throughout the pulse with the aid of the measured resistance as a function of temperature; and finally computing the specific heat of the sample from the temperature as a function of time during the pulse, the measured power input to the wire, and the theoretically computed heat loss corrections. Results are given for high‐purity iron over the temperature range 25° to 1050°C. Variations of the specific heat near the phase transitions are shown in detail.This publication has 10 references indexed in Scilit:
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