NEUTRON SCATTERING MESOSCOPIC AND MICROSCOPIC STRUCTURE DETERMINATION OF BINARY LIQUID MIXTURES UNDERGOING NON-METAL TO METAL TRANSITION (APPLICATION TO METAL-AMMONIA AND METAL MOLTEN SALTS)

P. CHIEUX; J.-F. JAL; L. HILY; J. DUPUY; F. LECLERCQ; P. DAMAY

doi:doi:10.1051/jp4:1991501

Numéro		J. Phys. IV France Volume 01, Numéro C5, Décembre 1991 COLLOQUE WEYL VII International Conference on METALS IN SOLUTION


Page(s)		C5-3 - C5-24
DOI		https://doi.org/10.1051/jp4:1991501

COLLOQUE WEYL VII
International Conference on METALS IN SOLUTION

J. Phys. IV France 01 (1991) C5-3-C5-24
DOI: 10.1051/jp4:1991501

NEUTRON SCATTERING MESOSCOPIC AND MICROSCOPIC STRUCTURE DETERMINATION OF BINARY LIQUID MIXTURES UNDERGOING NON-METAL TO METAL TRANSITION (APPLICATION TO METAL-AMMONIA AND METAL MOLTEN SALTS)

P. CHIEUX¹, J.-F. JAL², L. HILY², J. DUPUY², F. LECLERCQ³ and P. DAMAY³

¹ Institute Laue-Langevin, 156X, F-38042 Grenoble cedex, France
² Département de Physique des Matériaux, Université Claude Bernard, F-69621 Lyon Villeurbanne, France
³ Laboratoire de Chimie-Physique, H.E.I., 13 rue de Toul, F-59046 Lille cedex, France

Abstract
A review is given of the microscopic and mesoscopic structure of binary liquid mixtures undergoing a metal to non-metal transition as a function of concentration (such as Metal-Ammonia and Metal-Molten Salts). We present recent progress and perspectives in the structural determination of the pure components ( ND₃, MX, M). Accurate partial structure factors of M-MX at concentrations rich in salt and rich in metal are discussed. Then we review Small Angle Neutron Scattering (SANS) measurements of correlation length ([MATH]) for critical fluctuations and critical indices ([MATH]), away from and very near to the critical point for liquid-liquid immiscibility in M-ND₃ and M-MX. Finally the likelihood of clustering is discussed.