Abstract
This paper presents the results obtained by nuclear magnetic resonance (NMR) imaging of perfluorinated gases in mesoporuous solids. NMR images of nuclear spin density as a function of gas pressure permits spatially resolved measurements that are analogous to conventional bulk Brunauer-Emmett-Teller adsorption isotherm measurements. The use of NMR imaging allows the nondestructive evaluation of macroscopic spatial variations in the underlying mesoporous structure, for materials such as partially sintered Y-TZP (yttria-stabilized tetragonal-zirconia polycrystal) ceramics. All NMR measurements were performed with octafluorocyclobutane (C4F8) gas, using only the thermal Boltzman nuclear magnetization.
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Beyea, S.D., Caprihan, A., Clewett, C.F.M. et al. Spatially resolved adsorption isotherms of thermally polarized perfluorinated gases in yttria-stabilized tetragonal-zirconia polycrystal ceramic materials with NMR imaging. Appl. Magn. Reson. 22, 175–186 (2002). https://doi.org/10.1007/BF03166101
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DOI: https://doi.org/10.1007/BF03166101