There are a number of techniques based on Nuclear Magnetic Resonance
that can be used to study porous materials, both directly and
indirectly -
All of these techniques are available at the Kent University
These techniques are listed in approximately length-scale order
to which they are best suited :
3 page Summary
Centre for Materials Research :
NMR spectral techniques are sensitive to structure at atomic length
scales, Cryoporometry works well for 1nm to 1um, bounded liquid fraction
from 0.1um to 10um, and direct 3D imaging from about 100um; the upper length
scales used to be limited by what would fit in the magnet and sample coil -
with mobile NMR there is now no upper limit to the length scale that
can be studied.
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