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NMR microscopy ‐ limitations and applications in material sciences ‐
Author(s) -
Kuhn W.,
Eichhoff U.
Publication year - 1990
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19900340120
Subject(s) - polymer , materials science , relaxation (psychology) , spin–lattice relaxation , porous medium , nuclear magnetic resonance spectroscopy , ceramic , spin echo , nuclear magnetic resonance , spectroscopy , microscopy , chemical physics , porosity , analytical chemistry (journal) , chemistry , magnetic resonance imaging , physics , optics , organic chemistry , medicine , psychology , social psychology , radiology , quantum mechanics , composite material , nuclear quadrupole resonance
Alongside the numerous applications of NMR spectroscopy in analytical chemistry, materials sciences and morphological studies by magnetic resonance imaging (MRI), NMR microscopy makes possible a whole new range of applications in materials sciences such as the development and non destructive testing of polymers and ceramic materials. This includes imaging of microscopic structures and structural changes in such materials. The contrast in the images is determined by the NMR specific parameters chemical shift δ, spin density ρ, spin lattice relaxation time T 1 , spin spin relaxation time T 2 and spin lattice relaxation time in the rotating frame T 1ρ . The numerous well developed methods available make it possible to study dynamic processes by fast imaging, the measurement of diffusion constants of solvents or liquids, the mobility of fluids in polymers or ceramics or the three dimensional evaluation of pore sizes in porous materials.