CRYOPOROMETRY: A NEW NMR METHOD FOR CHARACTERISING POROUS MEDIA
作者:
J. H. STRANGE,
期刊:
Nondestructive Testing and Evaluation
(Taylor Available online 1994)
卷期:
Volume 11,
issue 5
页码: 261-271
ISSN:1058-9759
年代: 1994
DOI:10.1080/10589759408956408
出版商: Taylor & Francis Group
关键词: ZNuclear magnetic Resonance;NMR;pore dimension;porosity;porous silica;gas desorption
数据来源: Taylor
摘要:
A new method to determine pore dimensions in the mesopore range is described. NMR is used to quantify the melting point depression of an absorbed liquid and hence determine pore size distributions in various silica samples. Results are shown to compare well with conventional gas desorption determinations and ultimate resolution considered. The method is relatively simple, rapid and non-destructive. The damage to pore structures caused by ice formation is demonstrated using the technique.
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