晶体生长建模软件FEMAG蓝宝石生长模拟.ppt

晶体生长建模软件FEMAG Sapphire growth simulation FEMAGSoft ? 2013 Sapphire growth FEMAGSoft ? 2013 Steel pulling axis Sapphire Iridium crucible Zirconium oxide Zirconium oxide granules Quartz Simulation of sapphire crystal growth by the Czochralski method Furnace model Sapphire growth (cont’d) FEMAGSoft ? 2013 Melt meshes BLM (boundary layer mesh) Coarse mesh Sapphire growth (cont’d) FEMAGSoft ? 2013 Local temperature field Result using coarse mesh Result using BLM mesh Results for 20 cm crystal length Sapphire growth (cont’d) FEMAGSoft ? 2013 Velocity field Result using coarse mesh Result using BLM mesh Sapphire growth (cont’d) FEMAGSoft ? 2013 Global temperature field FEMAG-CZ quasi-steady simulation of the growth of an HEM Sapphire crystal Sapphire growth (cont’d) FEMAGSoft ? 2013 c-grown crystal a-grown crystal von Mises invariant isovalues (Pa) Sapphire growth (cont’d) * * * * * * * * * * * * * *