SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Ergin Emrecan 1988) "

Sökning: WFRF:(Ergin Emrecan 1988)

  • Resultat 1-2 av 2
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Freihofer, G., et al. (författare)
  • Piezospectroscopic measurements capturing the evolution of plasma spray-coating stresses with substrate loads
  • 2014
  • Ingår i: ACS Applied Materials & Interfaces. - : American Chemical Society (ACS). - 1944-8252 .- 1944-8244. ; 6:3, s. 1366-1369
  • Tidskriftsartikel (refereegranskat)abstract
    • Plasma-spray coatings have a unique microstructure composed of various types of microcracks and weakly bonded interfaces which dictate their nonlinear mechanical properties. The intrinsic photo-luminescence (PL) characteristics of alpha-alumina (α-Al2O3) within these coatings offer a diagnostic functionality, enabling these properties to be probed experimentally at the microscale, under substrate loading. The piezospectroscopic (PS) measurements from the coatings are capable of revealing microstructural stress at high spatial resolution. Here, for the first time, the evolution of stresses within air plasma spray (APS) coatings under increasing substrate loads were captured using piezospectroscopy. With mechanical cycling of the substrate, the PS properties revealed anelastic and inelastic behavior and a relaxation of residual tensile stress within the APS coatings. With decreasing substrate thickness, the coating was observed to sustain more stress, as the substrate's influence on the mechanical behavior decreased. The findings provide an insight into the microstructural response that can serve as the basis for model validation and subsequently drive the design process for these coatings.
  •  
2.
  • Freihofer, G., et al. (författare)
  • Prediction of piezospectroscopic properties with nanoparticle load transfer theories
  • 2013
  • Ingår i: International SAMPE Technical Conference. ; 2013, s. 1749-1757
  • Konferensbidrag (refereegranskat)abstract
    • Embedded alumina nanoparticles acting as stress sensors enable a wide array of applications for non destructive evaluation and materials testing. This work aims to predict the stress sensitive properties of these nanocomposites through theoretical models and finite element simulations. The Eshelby model is accurate in representing the piezospectroscopic (PS) properties for low volume fractions, but modifications were needed to predict higher volume fractions. An iterative technique which uses the framework of the Eshelby model is able to predict the PS properties for intermediate volume fractions. Finite element models were developed to investigate the effects of various microstructural features on the PS properties. The introduction of isotropic interfaces and neighbouring interacting particles in the model improved correlation with experimental data for higher volume fractions. Microcracks included in the model were capable of creating correlation with experimental data for lower volume fractions. These qualitative results give insight into the direction for future nanoparticle load transfer theories.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-2 av 2
Typ av publikation
konferensbidrag (1)
tidskriftsartikel (1)
Typ av innehåll
refereegranskat (2)
Författare/redaktör
Raghavan, S (2)
Freihofer, G. (2)
Ergin, Emrecan, 1988 (2)
Schülzgen, A. (2)
Gupta, A. (1)
Jones, A. (1)
visa fler...
Seal, S. (1)
Fugon-Dessources, D. (1)
Van Newkirk, A. (1)
Fugon, D. (1)
Tat, H. (1)
visa färre...
Lärosäte
Chalmers tekniska högskola (2)
Språk
Engelska (2)
Forskningsämne (UKÄ/SCB)
Teknik (2)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy