Probabilistic damage model for the crack propagation in Si3N4 ceramics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00450459" target="_blank" >RIV/68081723:_____/15:00450459 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Probabilistic damage model for the crack propagation in Si3N4 ceramics

Popis výsledku v původním jazyce

The microstructural constitution of silicon nitride possesses the ability to enhance fracture propert ies by changing the grain shape parameters and change the glassy phase composition. The composition of the glassy phase plays significant role in the grain formation. Usually, the elongated beta silicon nitride grains homogeneously distributed within the m icrostructure formed from equi - axed grains creates significant obstacle for propagating crack. There are few mechanisms that acts during the fracture process and led to enhanced fracture resistance of the material. First one is the crack bridging, where op ening of existing crack is constrained by the elongated grain in elastic regime. The second is the grain trans - granular fracture where the elastically loaded bridging grain is fractured and this grain fracture consumes some portion of accumulated energy st ored in the system. The third mechanism can be seen when the crack is somehow forced to change its direction and use delami

Název v anglickém jazyce

Probabilistic damage model for the crack propagation in Si3N4 ceramics

Popis výsledku anglicky

The microstructural constitution of silicon nitride possesses the ability to enhance fracture propert ies by changing the grain shape parameters and change the glassy phase composition. The composition of the glassy phase plays significant role in the grain formation. Usually, the elongated beta silicon nitride grains homogeneously distributed within the m icrostructure formed from equi - axed grains creates significant obstacle for propagating crack. There are few mechanisms that acts during the fracture process and led to enhanced fracture resistance of the material. First one is the crack bridging, where op ening of existing crack is constrained by the elongated grain in elastic regime. The second is the grain trans - granular fracture where the elastically loaded bridging grain is fractured and this grain fracture consumes some portion of accumulated energy st ored in the system. The third mechanism can be seen when the crack is somehow forced to change its direction and use delami

Druh

O - Ostatní výsledky

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

—

Projekt

<a href="/cs/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: CEITEC - central european institute of technology</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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