Crystal-Growth Process of Single-Crystal-like Mesoporous ZnO through a Competitive Reaction in Solution

2012 ◽  
Vol 12 (6) ◽  
pp. 2923-2931 ◽  
Author(s):  
Eiji Hosono ◽  
Takashi Tokunaga ◽  
Shintaro Ueno ◽  
Yuya Oaki ◽  
Hiroaki Imai ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Growth Process ◽  
Competitive Reaction ◽  
Crystal Growth Process ◽  
Mesoporous Zno ◽  
Reaction In Solution

Preliminary Exploration on the Preparation of LYSO:Ce Single Crystal Using Verneuil Method

2020 ◽  
Vol 1003 ◽  
pp. 247-253
Author(s):  
Zhi Xin Ma ◽  
Xiao Guo Bi ◽  
Xu Dong Liu ◽  
Xiao Dong Li ◽  
Ji Guang Li ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
High Purity ◽  
Growth Process ◽  
Growth Parameter ◽  
Czochralski Method ◽  
Improved Method ◽  
Crystal Growth Process ◽  
Crystal Fracture

LYSO:Ce single crystal was widely manufactured by Czochralski method. Considering its high cost and the pollution of the crucible, we tried to prepare the crystal by Verneuil method. Unlike Czochralski method, the Verneuil method need the powders with excellent fluidity and high purity. By comparing the powders annealed at 1100°C,1200°C,1300°C,1400°C and 1500°C, we can obtained the needed powders at 1500°C. We also increased the content of silica to satisfy the volatilization in crystal growth process. The single crystal was prepared by changing the growth parameter. We investigated the phase and the microstructure of the powders and observed the microstucture of the crystal fracture. We discussed the improved method of the process of crystal growth.

scholarly journals Heat and Fluid Flow in Solvothermal Autoclave for Single-Crystal Growth Process

2012 ◽  
Vol 7 (2) ◽  
pp. 379-386 ◽  
Author(s):  
Yoshio MASUDA ◽  
Akira SUZUKI ◽  
Tohru ISHIGURO ◽  
Chiaki YOKOYAMA
Keyword(s):  
Fluid Flow ◽  
Crystal Growth ◽  
Single Crystal ◽  
Growth Process ◽  
Single Crystal Growth ◽  
Crystal Growth Process ◽  
Heat And Fluid Flow

Effects of Conical Transition Section on Microstructure of a Ni3Al-Base Single Crystal Superalloy IC6SX

2010 ◽  
Vol 650 ◽  
pp. 214-218
Author(s):  
Li Wu Jiang ◽  
Shu Suo Li ◽  
Ya Fang Han
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Growth Process ◽  
Yield Ratio ◽  
Alloy Specimen ◽  
Dendrite Morphology ◽  
Transition Section ◽  
The Third ◽  
Single Crystal Alloy ◽  
Crystal Growth Process

Ni3Al based single crystal alloy IC6SX was prepared by election spiral crystal method. The effect of the conical transition section of the single crystal on the microstructure of the single crystal was studied in this work. The results showed that, in the crystal growth process, the effect of the conical transition section on the orientation of single crystal was significant. The yield ratio of the single crystal alloy specimen with <001> orientation could be improved significantly by adding cone transition section. With the angle of the cone transition section increasing from 20 º to 43 º, the dendrite arm spacing increased gradually, and dendrite morphology was coarsened and the third dendrite arm appeared.

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