An experimental investigation of the density and thermal expansion of advanced materials and heat-transfer agents of liquid-metal systems of fusion reactor: Lead-lithium eutectic

Abstract

The method of penetrating gamma-rays is used to measure the density of eutectic alloy of the Pb-Li system in the condensed state in the temperature range from 360 to 880 K. The confidence error of the experimental results is 0.4% and 0.3% for the solid and liquid phases, respectively. The experimental results for the density of lead-lithium eutectic are used to calculate the thermal expansion in the investigated temperature range. The investigation results are compared with the available literature data on the thermal properties of Pb-Li eutectic in the solid and liquid phases.