CAPILLARY CONDENSATION OF HELIUM IN NARROW SLIT PORES

被引：14

作者：

CHENG, E

SWIFT, MR

COLE, MW

机构：

[1] INST PHYS NUCL LYON,DIV PHYS THEOR,BP 1,F-91406 ORSAY,FRANCE

[2] PENN STATE UNIV,DEPT PHYS,UNIV PK,PA 16802

来源：

JOURNAL OF CHEMICAL PHYSICS | 1993年 / 99卷 / 05期

关键词：

D O I：

10.1063/1.466102

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：

We study the capillary condensation of liquid He-4 films inside narrow slit pores with a density functional model and compare the result to the predictions of the Kelvin equation. Our investigation, in the wetting situation, indicates that pores with sizes up to 100 angstrom are still too small for the macroscopic thermodynamic arguments used to derive the Kelvin equation to be successful. The discrepancy is tentatively attributed to the use of a slab-density model and bulk parameters in the region of very thin films.

引用

页码：4064 / 4067

页数：4

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