Elastic and anelastic behavior of TBCs sprayed at high deposition rates

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F14%3A00436553" target="_blank" >RIV/61389021:_____/14:00436553 - 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

Elastic and anelastic behavior of TBCs sprayed at high deposition rates

Popis výsledku v původním jazyce

Coatings sprayed at high deposition rates often result in stiff, dense, and highly stressed coatings. The high deposition temperature at which the coatings are formed is responsible for these characteristics. In this paper, TBCs were sprayed at high deposition rates increasing the tensile quenching stresses beyond the threshold of crack opening during spraying. Dense structures were observed within a pass, in presence of micro and macro defects specifically horizontal cracks within interpasses and vertical segmentation cracks. Mechanical properties, mainly the elastic and anelastic behaviour of TBCs were significantly affected by the strain accommodation and friction occurring within intersplats and interpass interfaces. The strain tolerance obtained in as-sprayed conditions decreased as the microstructure and defects sintered during high temperature heat cycles.The non-linearity degree decreased while the elastic modulus of the various coatings increased to a maximum value.

Název v anglickém jazyce

Elastic and anelastic behavior of TBCs sprayed at high deposition rates

Popis výsledku anglicky

Coatings sprayed at high deposition rates often result in stiff, dense, and highly stressed coatings. The high deposition temperature at which the coatings are formed is responsible for these characteristics. In this paper, TBCs were sprayed at high deposition rates increasing the tensile quenching stresses beyond the threshold of crack opening during spraying. Dense structures were observed within a pass, in presence of micro and macro defects specifically horizontal cracks within interpasses and vertical segmentation cracks. Mechanical properties, mainly the elastic and anelastic behaviour of TBCs were significantly affected by the strain accommodation and friction occurring within intersplats and interpass interfaces. The strain tolerance obtained in as-sprayed conditions decreased as the microstructure and defects sintered during high temperature heat cycles.The non-linearity degree decreased while the elastic modulus of the various coatings increased to a maximum value.

Druh

D - Stať ve sborníku

CEP obor

JK - Koroze a povrchové úpravy materiálu

OECD FORD obor

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Projekt

<a href="/cs/project/GPP108%2F12%2FP552" target="_blank" >GPP108/12/P552: Procesy porušování vrstvených materiálů v blízkosti fázových rozhraní</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

ITSC 2014 :Interational Thermal Spray Conference and Exposition, Abstracts (including manuscripts on CD-ROM)

ISBN

978-3-87155-574-9

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

13-19

Název nakladatele

DVS Media GmbH

Místo vydání

Düsseldorf

Místo konání akce

Barcelona

Datum konání akce

21. 5. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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