Racing Crystallization Mechanism for Economical Design of Single-Crystal Hollow ZSM-5 with the Broken Limit of Si/Al Ratio and Improved Mass Transfer

2021 ◽  
Author(s):  
Yi Zhai ◽  
Xubin Zhang ◽  
Fumin Wang ◽  
Guojun Lv ◽  
Tao Jiang ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Single Crystal ◽  
Crystallization Mechanism ◽  
Economical Design

NATURAL CONVECTION DURING CZOCHRALSKI SINGLE CRYSTAL GROWTH OF SUPERCONDUCTING MATERIALS

2004 ◽  
Vol 18 (30) ◽  
pp. 1533-1536 ◽  
Author(s):  
Y. R. LI ◽  
S. Y. WU ◽  
P. LAN ◽  
C. H. FENG
Keyword(s):  
Mass Transfer ◽  
Crystal Growth ◽  
Single Crystal ◽  
Temperature Difference ◽  
Radial Direction ◽  
Oscillatory Flow ◽  
Czochralski Method ◽  
Single Crystal Growth ◽  
Small Temperature ◽  
Flow Heat

To understand the characteristics of the flow, heat and mass transfer in the Ba - Cu - O melt for superconducting material YBa 2 Cu 3 O 2-x ( Y 123) single crystal growth by Czochralski method, this paper presents the numerical simulations of the two-dimension unsteady flow, thermal and Y concentration fields in the Ba - Cu - O melt for Y123 single crystal growth. The results show that the flow is steady at a small temperature difference. As the temperature difference in the radial direction increases, the simulation can predict oscillatory flow.

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