Use of Pure Copper as a Standard Substance for Low Temperature Calorimetry
- 1 December 1967
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 38 (12), 1738-1740
- https://doi.org/10.1063/1.1720659
Abstract
Measurements in the temperature range 0.4 to 3°K have shown that the specific heat of American Smelting and Refining Co. 99.999+% pure copper in the ``as received'' condition may be higher than the specific heat of samples which have been vacuum annealed or vacuum cast from this material, possibly due to the presence of a dissolved gas. The specific heat of copper has been increased (by a percent or so) by heating in a hydrogen atmosphere. The effect of very low levels of transition metal impurities on the specific heat is discussed.Keywords
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