中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Optimization of the quality control parameters in sapphire single crystal preparation using the Kyropoulos method

文献类型:期刊论文

作者Xu, Jia4; Qiao, Tiezhu3,4; Dong, Huijie3; Zhang, Haifeng2; Yan, Gaowei1
刊名CRYSTENGCOMM
出版日期2023-02-01
卷号25期号:7页码:1136-1145
ISSN号1466-8033
DOI10.1039/d2ce01675c
产权排序3
英文摘要

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.

语种英语
出版者ROYAL SOC CHEMISTRY
WOS记录号WOS:000917871100001
源URL[http://ir.opt.ac.cn/handle/181661/96326]  
专题西安光学精密机械研究所_动态光学成像研究室
通讯作者Qiao, Tiezhu
作者单位1.Taiyuan Univ Technol, Coll Elect & Power Engn, Taiyuan 030024, Peoples R China
2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Shanxi, Peoples R China
3.Taiyuan Univ Technol, Coll Optoelect, Taiyuan 030024, Peoples R China
4.Taiyuan Univ Technol, Key Lab Adv Transducers & Intelligent Control Syst, Minist Educ, 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.

入库方式: OAI收割

来源:西安光学精密机械研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。