Spatially resolved adsorption isotherms of thermally polarized perfluorinated gases in yttria-stabilized tetragonal-zirconia polycrystal ceramic materials with NMR imaging

被引：14

作者：

Beyea, SD

Caprihan, A

Clewett, CFM

Glass, SJ

机构：

[1] New Mexico Resonance, Albuquerque, NM 87106 USA

[2] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

APPLIED MAGNETIC RESONANCE | 2002年 / 22卷 / 02期

基金：

美国能源部;

关键词：

D O I：

10.1007/BF03166101

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

This paper presents the results obtained by nuclear magnetic resonance (NMR) imaging of perfluorinated gases in mesoporous 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.

引用

页码：175 / 186

页数：12

共 19 条

[1]

Armstrong R. L., 1987, Magnetic Resonance Review, V12, P91

[2] Adsorption of gases in multimolecular layers [J].