numerical modelling of the czochralski growth of β-ga2o3

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ID: 189273
2017
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Abstract
Our numerical modelling of the Czochralski growth of single crystalline β-Ga 2 O 3 crystals (monoclinic symmetry) starts at the 2D heat transport analysis within the crystal growth furnace, proceeds with the 3D heat transport and fluid flow analysis in the crystal-melt-crucible arrangement and targets the 3D thermal stress analysis within the β-Ga 2 O 3 crystal. In order to perform the stress analysis, we measured the thermal expansion coefficients and the elastic stiffness coefficients in two samples of a β-Ga 2 O 3 crystal grown at IKZ. Additionally, we analyse published data of β-Ga 2 O 3 material properties and use data from literature for comparative calculations. The computations were performed by the software packages CrysMAS, CGsim, Ansys-cfx and comsol Multiphysics. By the hand of two different thermal expansion data sets and two different crystal orientations, we analyse the elastic stresses in terms of the von-Mises stress.
Reference Key
miller2017crystalsnumerical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Wolfram Miller, Klaus Böttcher, Zbigniew Galazka, Jürgen Schreuer
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Journal turk kardiyoloji dernegi arsivi
Year 2017
DOI
10.3390/cryst7010026
URL
http://www.mdpi.com/2073-4352/7/1/26
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