Author/Authors :
Hennet، نويسنده , , L. and Pozdnyakova، نويسنده , , I. and Cristiglio، نويسنده , , V. and Krishnan، نويسنده , , S. and Bytchkov، نويسنده , , A. and Albergamo، نويسنده , , F. and Cuello، نويسنده , , G.J. and Brun، نويسنده , , J.-F. and Fischer، نويسنده , , H.E. and Zanghi، نويسنده , , D. and Brassamin، نويسنده , , S. and Saboungi، نويسنده , , M.-L. and Price، نويسنده , , D.L.، نويسنده ,
Abstract :
We used the aerodynamic levitation technique combined with CO2 laser heating to study the structures of liquid CaAl2O4 and MgAl2O4 above their melting point with X-ray and neutron diffraction. We determined the structure factors and corresponding pair correlation functions describing the short-range order in the liquids. The combination of the two scattering techniques makes it possible to derive information not accessible with a single measurement. We also obtained information on the dynamics of liquid MgAl2O4 with inelastic X-ray scattering. In particular, we determined the sound velocity and the longitudinal viscosity.
Keywords :
Medium-range order , Short-range order , Neutron diffraction/scattering , Sychrotron radiation , Oxide glasses , X-ray diffraction
