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Träfflista för sökning "WFRF:(Cheng Laifei) srt2:(2010)"

Sökning: WFRF:(Cheng Laifei) > (2010)

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1.
  • Wang, Cao, et al. (författare)
  • FEM analysis of the temperature and stress distribution in spark plasma sintering : Modelling and experimental validation
  • 2010
  • Ingår i: Computational materials science. - : Elsevier. - 0927-0256 .- 1879-0801. ; 49:2, s. 351-362
  • Tidskriftsartikel (refereegranskat)abstract
    • A fully thermal-electrical-mechanical coupled and dynamic finite element model (FEM) is implemented to analyze of the temperature and stress distribution in spark plasma sintering (SPS) process. The real densification behaviour is also integrated by the moving mesh technique. The simulation studies were conducted using COMSOL and a range of die sizes, heating rates and uniaxial stresses were considered. The further validation experiments are implemented to validate the simulation results. The detailed microstructure investigations generally demonstrate that the temperature and stress profile obtained in present model are correct. But further development of complicated models is still needed for more precise prediction of sintering condition and microstructure development in SPS.
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2.
  • Zhao, Zhe, et al. (författare)
  • Finite element modelling of temperature distribution in spark plasma sintering
  • 2010
  • Ingår i: Key Engineering Materials. - 1013-9826 .- 1662-9795. ; 434-435, s. 808-813
  • Tidskriftsartikel (refereegranskat)abstract
    • A finite element model (FEM) is developed to simulate the temperature distribution in the sample/die/punch assembly during the spark plasma sintering (SPS) process. A thermal–electrical coupled model with temperature dependent thermal and electrical properties is implemented. The simulation studies were conducted using COMSOL and a range of heating-rates and die sizes were considered. Also, both temporary and equilibrium condition during heating process were evaluated in order to express the real temperature development in the sintering. During the spark plasma sintering process, the temperature difference between the sample center and the die surface depend on the heating-rate and die size. The simulation results also revealed that the temperature gradient during the heating process is much bigger than that in the dwelling period. It is necessary to consider the temporary state during the spark plasma sintering process in order to guarantee a well–controlled microstructure, especially in non-conductive ceramic materials.
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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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Wang, Cao (2)
Cheng, Laifei (2)
Zhao, Zhe, 1973- (1)
Zhao, Zhe (1)
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Stockholms universitet (2)
Kungliga Tekniska Högskolan (1)
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Engelska (2)
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Naturvetenskap (1)
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2010 (2)Ta bort avgränsningen

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