Nanokrystalizace rychle chlazených Fe-Mo-Cu-B pásků : Povrchové a objemové efekty

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F08%3A00005759" target="_blank" >RIV/61989592:15310/08:00005759 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

NANOCRYSTALLIZATION IN RAPIDLY QUENCHED Fe-Mo-Cu-B: SURFACE AND VOLUME EFFECTS

Popis výsledku v původním jazyce

Transformations in rapidly quenched ribbons Fe91-xMo8Cu1Bx for x=12-20 were investigated by diverse methods of kinetic and structure analysis. The importance of Cu as nanocrystal former was shown on the case of Fe80Mo8B12. It was shown that a change of mechanism from a two-stage process to a single stage transformation takes place with increasing boron content. The crystallization products were identified as bcc-Fe(Mo) with the degree of supersaturation decreasing with increasing boron content, B2Mo2Fe,Fe23B6 and small amounts of Fe3B. Special effects related to the appearance of crystalline phases at the surface layers of as-quenched ribbons were observed which contradict the usual pattern of surface crystallinity formation due to insufficient quenching rates or glass forming ability. These effects were correlated with changes of alloy composition and with addition of another element. Possible micromechanisms leading to this behavior were discussed in terms of quenched-in cluster str

Název v anglickém jazyce

NANOCRYSTALLIZATION IN RAPIDLY QUENCHED Fe-Mo-Cu-B: SURFACE AND VOLUME EFFECTS

Popis výsledku anglicky

Transformations in rapidly quenched ribbons Fe91-xMo8Cu1Bx for x=12-20 were investigated by diverse methods of kinetic and structure analysis. The importance of Cu as nanocrystal former was shown on the case of Fe80Mo8B12. It was shown that a change of mechanism from a two-stage process to a single stage transformation takes place with increasing boron content. The crystallization products were identified as bcc-Fe(Mo) with the degree of supersaturation decreasing with increasing boron content, B2Mo2Fe,Fe23B6 and small amounts of Fe3B. Special effects related to the appearance of crystalline phases at the surface layers of as-quenched ribbons were observed which contradict the usual pattern of surface crystallinity formation due to insufficient quenching rates or glass forming ability. These effects were correlated with changes of alloy composition and with addition of another element. Possible micromechanisms leading to this behavior were discussed in terms of quenched-in cluster str

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/1M0512" target="_blank" >1M0512: Centrrum výzkumu práškových nanomateriálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Reviews on Advanced Materials Science

ISSN

1605-8127

e-ISSN

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Svazek periodika

18

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

RU - Ruská federace

Počet stran výsledku

13

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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