The states of order and the phase diagram of , investigated by neutron scattering

Autor:	W. Kölker, K. Hilfrich, O. Schärpf, W. Petry, Eckhard Nembach
Rok vydání:	1994
Předmět:	Materials science Silicon Condensed matter physics General Engineering Iron alloys chemistry.chemical_element Crystal structure Neutron scattering Crystallography chemistry Phase (matter) Order (group theory) Phase diagram Solid solution
Zdroj:	Acta Metallurgica et Materialia. 42:743-748
ISSN:	0956-7151
Popis:	The statesof order of iron-silicon solid solutions with atomic fractions c of silicon between 0.06 and 0.2 have been studied in neutron scattering experiments. Up to 873 K, Fe-0.06Si is short-range ordered. The structures of the other alloys can be described as follows. They are DO 3 long-range ordered at far lower c and higher temperatures than indicated in the current phase diagram: e.g. Fe-0.099Si up to at least 900 K and Fe-0.197Si up to at least 1473 K. The DO 3 -order parameter as well as the size of the antiphase domains decrease as the temperature is raised. Some phase boundaries shown in the current phase diagram turned out to be no phase boundaries at all: the respective lines have bearing only on the size of antiphase domains. Revisions of the current FeSi phase diagram are proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::125cbf0a58d5472d86e7255ec52764e1 https://doi.org/10.1016/0956-7151(94)90271-2 Zobrazit plný text záznamu