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Titolo:
X-RAY-SCATTERING STUDY OF EARLY-STAGE SPINODAL DECOMPOSITION IN AL0.62ZN0.38
Autore:
MAINVILLE J; YANG YS; ELDER KR; SUTTON M; LUDWIG KF; STEPHENSON GB;
Indirizzi:
BOSTON UNIV,DEPT PHYS,590 COMMONWEALTH AVE BOSTON MA 02215 MCGILL UNIV,CTR PHYS MAT MONTREAL PQ H3A 2T8 CANADA MCGILL UNIV,DEPT PHYS MONTREAL PQ H3A 2T8 CANADA IBM CORP,THOMAS J WATSON RES CTR,DIV RES YORKTOWN HTS NY 10598
Titolo Testata:
Physical review letters
fascicolo: 14, volume: 78, anno: 1997,
pagine: 2787 - 2790
SICI:
0031-9007(1997)78:14<2787:XSOESD>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHASE-SEPARATION; KINETICS; MIXTURES; ALLOYS; WATER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
J. Mainville et al., "X-RAY-SCATTERING STUDY OF EARLY-STAGE SPINODAL DECOMPOSITION IN AL0.62ZN0.38", Physical review letters, 78(14), 1997, pp. 2787-2790

Abstract

In situ small-angle x-ray scattering studies of the spinodal decomposition kinetics in an AlZn alloy at the critical composition have been performed with a time resolution of 10 ms. The kinetics of fluctuationrelaxation above the critical point merges smoothly with the early-stage kinetics of fluctuation growth below T-c. Strong nonlinearities are present at the earliest times measured, even above the critical point. The nonlinear theory of Langer, Bar-on, and Miller [Phys. Rev. A 11, 1417 (1975)] quantitatively fits the data with reasonable thermodynamic and transport parameters.

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Documento generato il 19/09/20 alle ore 14:49:23