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Titolo:
Thickness effects of water overlayer on its explosive evaporation at heated metal surfaces
Autore:
Dou, YS; Zhigilei, LV; Postawa, Z; Winograd, N; Garrison, BJ;
Indirizzi:
Penn State Univ, Dept Chem, University Pk, PA 16802 USA Penn State Univ University Pk PA USA 16802 m, University Pk, PA 16802 USA Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22903 USA Univ Virginia Charlottesville VA USA 22903 Charlottesville, VA 22903 USA Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland Jagiellonian Univ Krakow Poland PL-30059 t Phys, PL-30059 Krakow, Poland
Titolo Testata:
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
, volume: 180, anno: 2001,
pagine: 105 - 111
SICI:
0168-583X(200106)180:<105:TEOWOO>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
FROZEN AQUEOUS-SOLUTIONS; ASSISTED-LASER-DESORPTION/IONIZATION; FLIGHT MASS-SPECTROMETRY; MOLECULAR-DYNAMICS; ORGANIC-SOLIDS; ABLATION; DNA; SIMULATION; PROTEINS;
Keywords:
explosive evaporation; explosive boiling; phase explosion; MALDI mass spectrometry; ice matrix; water film; molecular dynamics simulation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Dou, YS Penn State Univ, Dept Chem, 152 Davey Lab, University Pk, PA 16802USA Penn State Univ 152 Davey Lab University Pk PA USA 16802 16802 USA
Citazione:
Y.S. Dou et al., "Thickness effects of water overlayer on its explosive evaporation at heated metal surfaces", NUCL INST B, 180, 2001, pp. 105-111

Abstract

Molecular dynamics (MD) simulations have been employed to investigate the effect of the thickness of a water overlayer on the character of its ejection from a heated Au surface. The simulations are performed for five systemsdiffering in the thickness of the water overlayer which was adsorbed on a metal substrate heated to 1000 K. For each system, an explosive evaporationoccurs in the part of the water film adjacent to the metal surface and theupper part of the film is pushed off by the generated force. The average maximum temperature of the water film decreases as the film thickness increases. In contrast, the temperature achieved by the fast cooling due to the explosive evaporation shows an inverse trend. The significance of these model calculations to matrix-assisted laser desorption and ionization (MALDI) mass spectrometry is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 23:11:03