Modelling of the Influence of Sources and Sinks for Vacancies and Stress State on Diffusion in Crystalline Solids

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00363693" target="_blank" >RIV/68081723:_____/11:00363693 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Modelling of the Influence of Sources and Sinks for Vacancies and Stress State on Diffusion in Crystalline Solids

Popis výsledku v původním jazyce

Diffusion in solids is a well-known phenomenon that has many consequences in technology and material science. Modelling of diffusion- controlled processes requires both a reliable theory of diffusion and reliable kinetic coefficients, as well as other thermodynamic data. Often the classical Darken theory, valid for stress-free systems with ideal vacancy source and sink activity, is generalized to multicomponent systems with ideal vacancy source and sink activity. Nazarov and Gurov presented a theory forstress-free systems with no vacancy source and sink activity. Recently we published a general theory of diffusion that accounted for the role of non-ideal vacancy source and sink activity, as well as the stress state. Since diffusion theories are testedand diffusion coefficients measured usually on diffusion couples, this paper presents evolution equations based on that general theory for a diffusion couple. In the limit, the equations of the Darken theory and the Nazarov and Gurov the

Název v anglickém jazyce

Modelling of the Influence of Sources and Sinks for Vacancies and Stress State on Diffusion in Crystalline Solids

Popis výsledku anglicky

Diffusion in solids is a well-known phenomenon that has many consequences in technology and material science. Modelling of diffusion- controlled processes requires both a reliable theory of diffusion and reliable kinetic coefficients, as well as other thermodynamic data. Often the classical Darken theory, valid for stress-free systems with ideal vacancy source and sink activity, is generalized to multicomponent systems with ideal vacancy source and sink activity. Nazarov and Gurov presented a theory forstress-free systems with no vacancy source and sink activity. Recently we published a general theory of diffusion that accounted for the role of non-ideal vacancy source and sink activity, as well as the stress state. Since diffusion theories are testedand diffusion coefficients measured usually on diffusion couples, this paper presents evolution equations based on that general theory for a diffusion couple. In the limit, the equations of the Darken theory and the Nazarov and Gurov the

Druh

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

CEP obor

BJ - Termodynamika

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP204%2F10%2F1784" target="_blank" >GAP204/10/1784: Modelování difúzních fázových transformací v mnohasložkových systémech s mnoha stechiometrickými fázemi</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Acta Materialia

ISSN

1359-6454

e-ISSN

—

Svazek periodika

59

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

1212-1219

Kód UT WoS článku

000286690100036

EID výsledku v databázi Scopus

—