WATER PROTON RELAXATION STUDIES OF PORE MICROSTRUCTURE IN MONODISPERSE GLASS BEAD BEDS

被引：20

作者：

HILLS, BP

SNAAR, JEM

机构：

[1] Institute of Food Research, Norwich Research Park, Norwich, NR4 7UA, Colney Lane

来源：

MOLECULAR PHYSICS | 1995年 / 84卷 / 01期

关键词：

D O I：

10.1080/00268979500100111

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The distribution of water proton transverse and longitudinal relaxation times observed in water-saturated, randomly packed beds of monodisperse glass beads is used to analyse the pore size distribution and pore connectivity in the beds. It is shown that, contrary to expectation, the pore size distribution is not continuous, but shows four discrete pore size categories associated with distorted octahedral, tetrahedral and triangular pores. The pulse spacing dependence of the transverse relaxation times associated with each of these pore sizes is used to determine the magnitude of the internal localized magnetic fields in the pores.

引用

页码：141 / 157

页数：17

共 20 条

[11]

HILLS BP, 1993, MOL PHYS, V1, P77

[12] DECAY OF NUCLEAR MAGNETIZATION BY DIFFUSION IN A PARABOLIC MAGNETIC-FIELD - AN EXACTLY SOLVABLE MODEL [J].