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Titolo:
Grain boundary grooving at the singular surfaces
Autore:
Rabkin, E; Klinger, L; Semenov, V;
Indirizzi:
Technion Israel Inst Technol, Dept Mat Engn, IL-32000 Haifa, Israel Technion Israel Inst Technol Haifa Israel IL-32000 L-32000 Haifa, Israel Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia Russian Acad Sci Chernogolovka Russia 142432 hernogolovka 142432, Russia
Titolo Testata:
ACTA MATERIALIA
fascicolo: 7, volume: 48, anno: 2000,
pagine: 1533 - 1540
SICI:
1359-6454(20000419)48:7<1533:GBGATS>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATOMIC-FORCE MICROSCOPY;
Keywords:
atomic force microscopy (AFM); intermetallic compounds; surface diffusion; grain boundaries;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Rabkin, E Technion Israel Inst Technol, Dept Mat Engn, IL-32000 Haifa, Israel Technion Israel Inst Technol Haifa Israel IL-32000 ifa, Israel
Citazione:
E. Rabkin et al., "Grain boundary grooving at the singular surfaces", ACT MATER, 48(7), 2000, pp. 1533-1540

Abstract

The unusual topographies of the grain boundary thermal grooves in Ni-rich NiAl were observed after annealing at 1400 degrees C. One of the surfaces forming the grain boundary groove exhibited no curvature measurable in the atomic force microscope, thus indicating its singular character. The theory of grain boundary grooving at singular surfaces was developed in the small-slope approximation and under assumption of negligible diffusivity on thesesurfaces. The calculated groove shapes are in good agreement with the experimental data and differ considerably from the shapes predicted by the classical Mullins grooving theory for isotropic surfaces. (C) 2000 Acta Metallurgica Inc. Published by Elsevier Science Ltd. All rights reserved.

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Documento generato il 12/07/20 alle ore 04:12:50