Published January 2002 | Version v1
Journal article Metadata-only

Dynamic scaling of quasielastic neutron scattering spectra from interfacial water

Creators

  • 1. Department of Chemistry and CSGI, University of Florence, via Gino Capponi 9, 50121 Florence (Italy)
  • 2. Department of Nuclear Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
  • 3. Department of Materials and Nuclear Engineering, University of Maryland, College Park, Maryland 20742 (United States)
  • 4. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)

Description

A method for analysis of high-resolution quasielastic neutron scattering (QENS) spectra of water in porous media is proposed and applied to the case of water in hydrated tricalcium and dicalcium silicates. We plot the normalized frequency-dependent susceptibility as a function of a scaling variable vertical bar ω vertical bar/ωp, where ωp is the peak position of the susceptibility function. QENS data have been scaled into a single master curve and fitted with an empirical formula proposed by Bergman to obtain three independent parameters describing the relaxation dynamics of hydration water in calcium silicates

Additional details

Identifiers

DOI
10.1103/PhysRevE.65.010201;

Publishing Information

Journal Title
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Journal Volume
65
Journal Issue
1
Journal Page Range
p. 010201-010201.4
ISSN
1063-651X
CODEN
PLEEE8

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36001601
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Descriptors DEI
CALCIUM SILICATES; ENERGY RESOLUTION; FREQUENCY DEPENDENCE; HYDRATION; INTERFACES; NEUTRON DIFFRACTION; NEUTRON SPECTRA; QUASI-ELASTIC SCATTERING; RELAXATION; SCALING LAWS; WATER
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; DIRECT REACTIONS; HYDROGEN COMPOUNDS; NUCLEAR REACTIONS; OXYGEN COMPOUNDS; QUASI-FREE REACTIONS; RESOLUTION; SCATTERING; SILICATES; SILICON COMPOUNDS; SOLVATION; SPECTRA

Optional Information

Contract/Grant/Project number
Contract DE-FG02-90ER45429
Notes
(c) 2001 The American Physical Society