High temperature–high pressure apparatus for neutron diffraction on molten salts: Structure factors of molten zinc chloride

Abstract

An apparatus for neutron diffraction experiments on corrosive liquids at high temperatures and high pressures is presented. The cell is constructed for temperatures up to 900 K and pressures up to 5000 bar and tested on molten zinc chloride at five different thermodynamic states at 723 K up to pressures of 4000 bar. The distinct terms and the total atom pair correlation functions of all five thermodynamic states are determined and their density dependences are discussed.