Study on the temperature field of large-sized sapphire single crystal furnace

摘要：

　　In this paper,the temperature field of large-sized(120kg,200kg and 300kg grade)sapphire single crystal furnace was simulated.By keeping the crucible diameter ratio and the insulation system unchanged,the power consumption,axial and radial temperature gradient,solid-liquid surface shape,stress distribution and melt flow were studied.The simulation results showed that with the increase of the single crystal furnace size,the power consumption increased,the temperature field insulation effect became worse,the growth stress value increased and the stress concentration phenomenon occurred.To solve these problems,the middle and bottom insulation system should be enhanced during designing the large-sized sapphire single crystal furnace.The appropriate radial and axial temperature gradient was favorable to reduce the crystal stress and prevent the occurrence of cracking.Expanding the interface between the seed and crystal was propitious to avoid the stress accumulation phenomenon.

作者: J P Zhai J W Jiang K G Liu X B Peng D L Jian I L Li

作者单位: Shenzhen Key Laboratory of Laser Engineering,College of Optoelectronic Engineering,Shenzhen Universi College of Electronic Science and Technology,Shenzhen University,Shenzhen 518060,P.R.China College of Mechatronics and Control Engineering,Shenzhen University,Shenzhen,518060,P.R.China

会议类型: 国际会议

会议名称: 第二届新型材料与化学工业国际学术会议

会议地点: 三亚

会议语种:英文

页码: 1-7

在线出版日期: 2017-11-18（万方平台首次上网日期，不代表论文的发表时间）