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Optimization of the quality control parameters in sapphire single crystal preparation using the Kyropoulos method
Xu, Jia1; Qiao, Tiezhu1,2; Dong, Huijie2; Zhang, Haifeng3; Yan, Gaowei4
作者部门飞行器光学成像与测量技术研究室
2023-02-01
发表期刊CRYSTENGCOMM
ISSN1466-8033
卷号25期号:7页码:1136-1145
产权排序3
摘要

The production of sapphire single crystals with high quality and low cost is an important goal of the sapphire industry. The quality of seeding has a direct impact on the final growth quality of sapphire crystals when sapphire is prepared using the Kyropoulos method. Keeping the crystal/melt contact stable is essential for lowering the number of seeding defects. In order to reduce the preparation cost of sapphire, an optimization strategy integrating computational fluid dynamics, artificial neural networks, and genetic algorithm is proposed to optimize the growth parameters of crystal seeding. The optimization goals are to stabilize the crystal/melt growth interface and increase seeding effectiveness. Three growth parameters, namely, melt temperature, seed crystal rotation speed and pulling speed, are selected as optimization variables. The samples produced by numerical calculation are combined with the actual production data to train and test the neural networks. The genetic algorithm is coupled with artificial neural networks to solve the multi-objective conflict between improving seeding efficiency and reducing the formation of crystal defects in the seeding process. The influence of the mechanism of different combinations of seeding parameters on seeding quality is discussed, and the optimization of seeding growth process is realized. The results show that the optimized combination of parameters gained in this study can improve the seeding speed and ensure the stability of the solid-liquid interface. This work is helpful to reduce the formation of seeding defects, improve the seeding quality, and shorten the seeding time.

DOI10.1039/d2ce01675c
收录类别SCI ; EI
语种英语
WOS记录号WOS:000917871100001
出版者ROYAL SOC CHEMISTRY
EI入藏号20230613537564
引用统计
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/96326
专题飞行器光学成像与测量技术研究室
通讯作者Qiao, Tiezhu
作者单位1.Taiyuan Univ Technol, Key Lab Adv Transducers & Intelligent Control Syst, Minist Educ, Taiyuan 030024, Peoples R China
2.Taiyuan Univ Technol, Coll Optoelect, Taiyuan 030024, Peoples R China
3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Shanxi, Peoples R China
4.Taiyuan Univ Technol, Coll Elect & Power Engn, Taiyuan 030024, Peoples R China
推荐引用方式
GB/T 7714
Xu, Jia,Qiao, Tiezhu,Dong, Huijie,et al. Optimization of the quality control parameters in sapphire single crystal preparation using the Kyropoulos method[J]. CRYSTENGCOMM,2023,25(7):1136-1145.
APA Xu, Jia,Qiao, Tiezhu,Dong, Huijie,Zhang, Haifeng,&Yan, Gaowei.(2023).Optimization of the quality control parameters in sapphire single crystal preparation using the Kyropoulos method.CRYSTENGCOMM,25(7),1136-1145.
MLA Xu, Jia,et al."Optimization of the quality control parameters in sapphire single crystal preparation using the Kyropoulos method".CRYSTENGCOMM 25.7(2023):1136-1145.
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