Lattice Constants and Thermal Expansion of Gold up to 878 °C by X‐Ray Method

Abstract

Abstract The thermal expansion of gold has been studied over the temperature range 25° to 878 °C by the X‐ray powder technique. The experimental coefficients can be represented by the interpolation formula α t = 13.99 × 10 −8 + 0.491 × 10 −3 t . The work of LAWSON , and MITRA and MITRA is discussed, and it is shown that in this temperature range it is not necessary to postulate the existence of any anomalous expansion arising from lattic defects.