Hills B P
AFRC Institute of Food Research, Norwich Laboratory, Colney, UK.
Magn Reson Imaging. 1994;12(2):183-90. doi: 10.1016/0730-725x(94)91512-1.
NMR water proton relaxation times are reported for suspensions of silica powder of varying silica/water ratios. Pore size distributions and pore connectivities are derived from the relaxation time distributions for the water-saturated suspension. Capillary theory appears to explain the relaxation behaviour of the unsaturated, packed suspensions. The relaxation data in suspensions that have lower solid/liquid ratios than the saturated, packed suspension are sensitive to the particular radial distribution function. This is analysed with a simple cluster model.
报道了不同二氧化硅/水比例的二氧化硅粉末悬浮液的核磁共振水质子弛豫时间。孔径分布和孔隙连通性由水饱和悬浮液的弛豫时间分布推导得出。毛细管理论似乎可以解释不饱和填充悬浮液的弛豫行为。固体/液体比例低于饱和填充悬浮液的悬浮液中的弛豫数据对特定的径向分布函数敏感。用一个简单的簇模型对此进行了分析。
