Measurements of Specific Heat Capacity of Beryllium in the Temperature Range of 260–870 K

The authors have evaluated the possibility of using beryllium as a means for storing and transferring a unit of specific heat capacity, as well as expanding the upper range of the heat capacity standards from 1654 to 2900 J/(kg·K). A temperature dependence of the specific heat capacity of beryllium samples of a known composition in the range of 260–870 K has been studied. The reproducibility of the thermophysical properties of beryllium over time and under condition of multiple heating was analyzed in the specified temperature range. The obtained results are important for providing metrological support in the field of measuring thermophysical quantities.