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Titolo:
Phase stability in nanostructures
Autore:
Herr, U;
Indirizzi:
Univ Ulm, Fac Engn, Div Mat, D-89081 Ulm, Germany Univ Ulm Ulm Germany D-89081 lm, Fac Engn, Div Mat, D-89081 Ulm, Germany
Titolo Testata:
ADVANCED ENGINEERING MATERIALS
fascicolo: 11, volume: 3, anno: 2001,
pagine: 889 - 893
SICI:
1438-1656(200111)3:11<889:PSIN>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
TO-GLASS-TRANSITION; POLYMORPHIC CRYSTALLIZATION; AMORPHOUS FE; CRYSTAL; FILMS; FE100-XZRX; THICKNESS; ALLOYS; MODEL; IRON;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Herr, U Univ Ulm, Fac Engn, Div Mat, Albert Einstein Allee 47, D-89081 Ulm, Germany Univ Ulm Albert Einstein Allee 47 Ulm Germany D-89081 lm, Germany
Citazione:
U. Herr, "Phase stability in nanostructures", ADV ENG MAT, 3(11), 2001, pp. 889-893

Abstract

Nanostructured materials provide access to tailor-made materials properties by microstructural design. Excellent mechanical properties such as high strength or wear resistance are often found in nanocrystalline materials. For magnetic materials, the design of nanostructured composites offers advantages if the structural scales match the intrinsic magnetic length scales. In some cases, as in the new nanocrystalline soft magnetic alloys, the combination of amorphous and nanocrystalline phases is necessary to obtain the desired properties. This rises the question of the limiting size for a stable crystalline structure, especially in contact with an amorphous phase. These considerations, which have been of interest for basic research in the context of the microcrystalline model for amorphous materials, are of technical importance for the optimization of nanostructured composites. Recent model experiments about the stability of thin Fe-based glass forming alloy films are reviewed. A relationship between phase stability, composition, and interface density has been established. The implications of the results for the design of nanostructured alloy systems are discussed.

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Documento generato il 29/09/20 alle ore 09:50:58