Published July 1990 | Version v1
Journal article Metadata-only

Bound diffusion of ultrafine particles in generalized anharmonic potential

Creators

  • 1. AN SSSR, Moscow. Inst. Khimicheskoj Fiziki
  • 2. Gosudarstvennyj Komitet po Ispol'zovaniyu Atomnoj Ehnergii SSSR, Moscow. Inst. Atomnoj Ehnergii
  • 3. High School of Chemical Technology, Moscow (USSR)

Description

Bound diffusion of ultrafine particles of ferric hydroxide precipitated inside the polymeric network has been studied by means of Moessbauer spectroscopy. For the samples with low polymer cross-linkage degree the experimental spectra reveal a striking broadening up to hundreds of mm/s. This is a consequence of the crossover from the diffusion of a Brownian oscillator to free diffusion in a restricted volume, the spatial displacements of the particles depending on the cross-linkage and changing from 0.1 to 0.6 A. (orig.)

Additional details

Publishing Information

Journal Title
Hyperfine Interactions
Journal Volume
56
Journal Issue
1-4
Series
Hyperfine Interact.
Journal Page Range
1483-1486
ISSN
0304-3843
CODEN
HYIND

Conference

Title
International conference on the applications of the Moessbauer effect (ICAME '89) and exhibit.
Dates
4-8 Sep 1989.
Place
Budapest (Hungary).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Switzerland
INIS RN
22005922
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
BROWNIAN MOVEMENT; CROSS-LINKING; DIFFUSION; EXPERIMENTAL DATA; ION EXCHANGE MATERIALS; IRON HYDROXIDES; LOW TEMPERATURE; MATRIX MATERIALS; MEDIUM TEMPERATURE; MOESSBAUER EFFECT; PARTICLE SIZE; POLYMERS; TEMPERATURE DEPENDENCE
Descriptors DEC
CHEMICAL REACTIONS; DATA; HYDROGEN COMPOUNDS; HYDROXIDES; INFORMATION; IRON COMPOUNDS; MATERIALS; NUMERICAL DATA; OXYGEN COMPOUNDS; POLYMERIZATION; SIZE; TRANSITION ELEMENT COMPOUNDS