COMPUTATIONAL SIMULATION |
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Numerical Simulation of Temperature Distribution in Growth Chamber for Preparation of Strontium Titanate Crystal with Flame Fusion Method |
LIU Xudong1, BI Xiaoguo2, SUN Xudong1,3
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1 College of Environmental and Chemical Engineering, Dalian University, Dalian 116622; 2 School of New Energy, Shenyang Institute of Engineering, Shenyang 110136; 3 School of Materials Science and Engineering, Northeastern University, Shenyang 110819 |
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Abstract Temperature distribution in growth chamber for preparation of strontium titanate single crystal with hydro-oxygen flame fusion method was investigated, and the effects of oxygen and hydrogen flow rate and aperture of nozzle on temperature distribution was analyzed. The results showed that the radial temperature and pressure at growth position of crystal decreased with the increasing of diameter. The maximal axial temperature and radial temperature of the melted cap of crystal increased with the increasing of hydrogen flow rate. With the increasing of oxygen flow rate, the radial temperature and pressure of the melted cap of crystal increased gradually in the growth chamber, while the maximal axial temperature decreased. With the increasing of oxygen aperture, the maximal axial temperature, the radial temperature and gradient decreased. The aperture of hydrogen had little effect on the axial and radial temperature in growth chamber.
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Published: 25 August 2017
Online: 2018-05-07
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1 Joseph A Adamski. New oxy-hydrogen burner for flame fusion[J].J Appl Phys,1965,36(5):1784. 2 Khambatta F B, et al. Initial thermal model of the flame fusion crsystal growth process[J].J Cryst Growth,1972,13:710. 3 Hans J Scheel.Historical aspects of crystal growth technology[J].J Cryst Growth,2000,211:1. 4 Liu Xudong, Bi Xiaoguo, Tang Jian, et al. Numerical simulation of the influence of growth parameters on the temperature distribution in growth chamber[J]. Mater Sci Technol,2015,23(6):57(in Chinese). 刘旭东,毕孝国,唐坚,等. 生长工艺对生长室内温度分布影响的数值模拟[J]. 材料科学与工艺,2015,23(6):57. 5 Liu Xudong, Bi Xiaoguo, Tang Jian, et al. Study on combustion characteristic in growth chamber for preparation of single crystal with flame fusion method[J]. Chinese J Mater Res,2015,29(5):394(in Chinese). 刘旭东, 毕孝国, 唐坚, 等. 焰熔法制备单晶体生长室内的燃烧特性[J].材料研究学报,2015,29(5):394. 6 Liu Xudong, Bi Xiaoguo, Tang Jian, et al. Study on temperature distribution in combustion chamber for preparation of single crystal with flame fusion method[J]. J Shenyang Institute of Engineering:Nat Sci,2014(4):378(in Chinese). 刘旭东,毕孝国,唐坚,等.焰熔法生长单晶体燃烧室内温度分布研究[J].沈阳工程学院学报:自然科学版,2014(4):378. 7 Bi Xiaoguo, Xiu Zhimeng, Ma Weimin, et al. Study on effect of growth atmosphere and rate on preparation of rutile (TiO2) single crystal[J]. J Synthetic Crystals,2004,33(4):657(in Chinese). 毕孝国, 修稚萌, 马伟民, 等. 生长气氛和速度在金红石(TiO2)单晶体生长中的作用研究[J]. 人工晶体学报,2004,33(4):657. 8 Bi Xiaoguo, Xiu Zhimeng, Sun Xudong, et al.Experimental study on growth conditions of big-bulk rutile crystal[J].J Synthetic Crystals,2004,33(2):244(in Chinese). 毕孝国, 修稚萌, 孙旭东, 等. 大尺寸金红石(TiO2)单晶体生长条件的实验研究[J].人工晶体学报,2004,33(2):244. 9 Bi Xiaoguo, Xiu Zhimeng, Ma Weimin, et al. Study on growth of rutile (TiO2) single crystals[J]. J Northeastern University:Nat Sci,2004,25(10):977(in Chinese). 毕孝国, 修稚萌, 马伟民, 等. 金红石(TiO2)单晶体的生长研究[J]. 东北大学学报,2004,25(10):977. 10 Scheel H J. Crystal growth technology CGT for energy: Saving energy and renewable energy[J]. J Cryst Growth,2005,275:331. 11 Donnet J B, Oulanti H,et al. Sythesis of large crystal diamond using combustion-flame method[J].Carbon,2006,44(2):374. 12 Bi Xiaoguo, Liu Xudong, Niu Wei. Flame-fusion growth of rutile single crystal[J].Adv Mater Res,2012,535-537:2571. |
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