Studium mikrosegregací legujících prvků ve wolframu a molybdenu během elektronového zonálního tavení

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F06%3A00014342" target="_blank" >RIV/61989100:27360/06:00014342 - 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

Study of microsegregations of alloying elements in tungsten and molybdenum single crystals during the electron beam zone melting

Popis výsledku v původním jazyce

The growth of single crystals from melts may be accompanied by creating a sequence of structural imperfections in the solid phase which is given by the conditions of crystallization and the crystal chemical composition. A periodical variation of the crystallization rate happens under certain conditions of the heat and mass transfer, which leads to a variation of the character of distribution of admixtures in the volume of the growing single crystal and its substructure. An accumulation of admixtures infront of the crystallization boundary and increasing of the crystallization undercooling may cause a considerable rise of the speed of movement of the crystallization front and changes of the admixture occupation in the growing crystal on the phase boundary surface. The variation of the microscopic crystallization rate causes a creation of a band structure observed on longitudinal sections of single crystals. This phenomenon was observed in single crystals in the area of solid solutions

Název v anglickém jazyce

Study of microsegregations of alloying elements in tungsten and molybdenum single crystals during the electron beam zone melting

Popis výsledku anglicky

The growth of single crystals from melts may be accompanied by creating a sequence of structural imperfections in the solid phase which is given by the conditions of crystallization and the crystal chemical composition. A periodical variation of the crystallization rate happens under certain conditions of the heat and mass transfer, which leads to a variation of the character of distribution of admixtures in the volume of the growing single crystal and its substructure. An accumulation of admixtures infront of the crystallization boundary and increasing of the crystallization undercooling may cause a considerable rise of the speed of movement of the crystallization front and changes of the admixture occupation in the growing crystal on the phase boundary surface. The variation of the microscopic crystallization rate causes a creation of a band structure observed on longitudinal sections of single crystals. This phenomenon was observed in single crystals in the area of solid solutions

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

Development of Materials Science in Research and Education

ISBN

80-901748-7-6

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

14-15

Název nakladatele

Czech and Slovak Crystallographic Association Praha

Místo vydání

Praha

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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