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Träfflista för sökning "L773:2079 6412 srt2:(2015)"

Sökning: L773:2079 6412 > (2015)

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1.
  • Curry, Nicholas, et al. (författare)
  • Performance Testing of Suspension Plasma Sprayed Thermal Barrier Coatings Produced with Varied Suspension Parameters
  • 2015
  • Ingår i: Coatings. - : MDPI AG. - 2079-6412. ; 5:3, s. 338-356
  • Tidskriftsartikel (refereegranskat)abstract
    • Suspension plasma spraying has become an emerging technology for the production of thermal barrier coatings for the gas turbine industry. Presently, though commercial systems for coating production are available, coatings remain in the development stage. Suitable suspension parameters for coating production remain an outstanding question and the influence of suspension properties on the final coatings is not well known. For this study, a number of suspensions were produced with varied solid loadings, powder size distributions and solvents. Suspensions were sprayed onto superalloy substrates coated with high velocity air fuel (HVAF) -sprayed bond coats. Plasma spray parameters were selected to generate columnar structures based on previous experiments and were maintained at constant to discover the influence of the suspension behavior on coating microstructures. Testing of the produced thermal barrier coating (TBC) systems has included thermal cyclic fatigue testing and thermal conductivity analysis. Pore size distribution has been characterized by mercury infiltration porosimetry. Results show a strong influence of suspension viscosity and surface tension on the microstructure of the produced coatings.
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2.
  • Li, Shaohui, et al. (författare)
  • Ab Initio Predicted Alloying Effects on the Elastic Properties of AlxHf1-xNbTaTiZr High Entropy Alloys
  • 2015
  • Ingår i: Coatings. - : MDPI AG. - 2079-6412. ; 5:3, s. 366-377
  • Tidskriftsartikel (refereegranskat)abstract
    • Using ab initio alloy theory, we investigate the equilibrium bulk properties and elastic mechanics of the single bcc solid-solution AlxHf1-xNbTaTiZr (x = 0-0.7, 1.0) high entropy alloys. Ab initio predicted equilibrium volume is consistent with the available experiment. We make a detailed investigation of the alloying effect of Al and Hf on the equilibrium volume, elastic constants and polycrystalline elastic moduli. Results imply that the partial replacement Hf with Al increases the stability of the bcc phase and decreases the ductility of the AlxHf1-xNbTaTiZr HEAs. The inner ductility of Al0.4Hf0.6NbTaTiZr is predicted by the calculations of ideal tensile strength.
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  • Resultat 1-2 av 2
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tidskriftsartikel (2)
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refereegranskat (2)
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Björklund, Stefan, 1 ... (1)
Ni, Xiaodong (1)
Tian, Fuyang (1)
Curry, Nicholas (1)
VanEvery, Kent (1)
Snyder, Todd (1)
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Susnjar, Johann (1)
Li, Shaohui (1)
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Kungliga Tekniska Högskolan (1)
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Engelska (2)
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