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Titolo:
X-ray scattering measurements of helium adsorption into silica aerogel.
Autore:
Lurio, LB; Mulders, N; Paetkau, M; Lee, M; Mochrie, SGJ; Chan, MHW;
Indirizzi:
MIT, CMSE, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139MIT, CMSE, Cambridge, MA 02139 USA Univ Delaware, Dept Phys, Newark, DE USA Univ Delaware Newark DE USAUniv Delaware, Dept Phys, Newark, DE USA Penn State Univ, Dept Phys, University Pk, PA USA Penn State Univ University Pk PA USA v, Dept Phys, University Pk, PA USA So Illinois Univ, Dept Phys, Carbondale, IL 62901 USA So Illinois Univ Carbondale IL USA 62901 t Phys, Carbondale, IL 62901 USA
Titolo Testata:
JOURNAL OF LOW TEMPERATURE PHYSICS
fascicolo: 5-6, volume: 121, anno: 2000,
pagine: 591 - 596
SICI:
0022-2291(200012)121:5-6<591:XSMOHA>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
MIXTURES; HE-4;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Lurio, LB MIT, CMSE, 77 Massachusetts Ave, Cambridge, MA 02139 USA MIT 77 Massachusetts Ave Cambridge MA USA 02139 ge, MA 02139 USA
Citazione:
L.B. Lurio et al., "X-ray scattering measurements of helium adsorption into silica aerogel.", J L TEMP PH, 121(5-6), 2000, pp. 591-596

Abstract

We have performed simultaneous adsorption isotherm and small angle x-ray scattering (SAXS) measurements of He-4 adsorption into 98% porous aerogel at3.5K. Measurements indicate a true phase coexistence at vapor pressures slightly below the bulk liquid-vapor equilibrium point. SAXS data are interpreted according to a model which consists of the coexistence of a film phasewhere the aerogel strands are coated with a liquid film and a filled-pore phase were the pores defined by neighboring strands are filled with liquid.

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Documento generato il 29/09/20 alle ore 00:18:52