title: New ways of probing surface nuclear relaxation and microdynamics of water and oil in porous media.
abstract: The microdynamics of water and oil in macroporous media with SiO2 or CaCO3 surfaces has been probed at various temperatures by magnetic field-cycling measurements of spin-lattice relaxation rates. These measurements and an original theory of surface diffusion allow us to obtain surface dynamical parameters such as surface correlation times, residence times and diffusion coefficients. A coefficient of affinity of the liquids for the pore surface is deduced.
authors.affiliation: Laboratoire de Physique de la Matière Condensée, Ecole Polytechnique, 91128, Palaiseau, France
authors.forename: S
authors.initials: S
authors.lastname: Godefroy
authors.forename: J P
authors.initials: JP
authors.lastname: Korb
authors.forename: M
authors.initials: M
authors.lastname: Fleury
authors.forename: R G
authors.initials: RG
authors.lastname: Bryant
mesh_terms: D002119:Calcium Carbonate; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D009821:Oils; D055585:Physical Phenomena; D010825:Physics; D016062:Porosity; D012822:Silicon Dioxide; D014867:Water
chemical_list: D009821:Oils; D014867:Water; D012822:Silicon Dioxide; D002119:Calcium Carbonate