Apparatus for heat capacity measurements of amorphous metals

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Abstract
Apparatus has been developed which enables absolute measurements of the heat capacity of samples of amorphous metals with a mass of 0.5 to 1 g to be made between liquid helium and liquid nitrogen temperatures. Between 1.5 and 10K the traditional pulse heating technique is used, whilst above 10K a variation of the adiabatic continuous warming technique yields more accurate results. Data collection and control of the equipment is performed by a microcomputer. Results obtained with a 3 g sample of high purity copper agree with accepted values to within +or-1% over the entire temperature range. The apparatus and technique could be useful whenever only small samples are available.

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