Study on the performance of alumina, zirconia and molybdenum composite insulation system for sapphire single crystal furnace

6th Annual International Conference on Material Science and Engineering

Zhai, Jianpang^1 ; Jiang, Jianwei^1 ; Liu, Kaige^1 ; Ruan, Shuangchen^1

College of New Materials and New Energies, Shenzhen Technology University, Shenzhen

518118, China^1

关键词: Composite insulation systems;    Effect of temperature;    Heat preservation;    Sapphire single crystal;    Simulation software;    Thermal insulation systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/397/1/012057/pdf
DOI  :  10.1088/1757-899X/397/1/012057

来源: IOP

【 摘 要 】

In this paper, the properties of the combined temperature field of zirconia, alumina and metal have been studied by using the simulation software CGSim. For the first time, a thermal insulation system with the combination of molybdenum, zirconia and alumina screen has been proposed. By keeping the side of the screen thickness unchanged, the heat preservation effect of temperature field turns out to be worse when the molybdenum screen with the same thickness is replaced with alumina. To ensure internal molybdenum screen layers unchanged, the insulation effect of temperature field is significantly enhanced with increasing the thickness of alumina or zirconia, the power consumption is decreased. However, the decrease of power consumption slows down when the thickness of alumina or zirconia increase to a certain thickness.