DIFFUSION OF Tl+ IONS THROUGH THE INTERFACE OF SOLID NaCl, KCl OR RbCl AND LIQUID TlCl

2002 ◽  
Vol 16 (01n02) ◽  
pp. 108-113
Author(s):  
W. YU ◽  
A. FUJII
Keyword(s):  
Sodium Chloride ◽  
Single Crystals ◽  
Optical Method ◽  
Diffusion Constant ◽  
Liquid Interface ◽  
Diffusion Constants ◽  
Diffusion Phenomena ◽  
Diffusion Source ◽  
Solid Liquid Interface ◽  
Solid Liquid

The diffusion phenomena of thallous ions ( Tl + ions) through solid-liquid interface of liquid Tl + ions diffusion source and sodium chloride (NaCl) , potassium chloride (KCl) or rubidium chloride (RbCl) single crystals are studied by optical method. The characterisic absorption peaks of Tl + center in NaCl, KCl or RbCl single crystals were used as the tracer for measurements and the diffusion constants are evaluated at various temperatures. The results show that the diffusion constant of solid-liquid interface is about 103 times larger than that of solid-solid interface of KCl and TlCl .

scholarly journals Numerical Analysis of Difficulties of Growing Large-Size Bulk β-Ga2O3 Single Crystals with the Czochralski Method

Crystals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 25
Author(s):  
Xia Tang ◽  
Botao Liu ◽  
Yue Yu ◽  
Sheng Liu ◽  
Bing Gao
Keyword(s):  
Crystal Growth ◽  
Single Crystals ◽  
Czochralski Method ◽  
Liquid Interface ◽  
Spiral Growth ◽  
Growth Time ◽  
Large Size ◽  
Crystal Diameter ◽  
Solid Liquid Interface ◽  
Solid Liquid

The difficulties in growing large-size bulk β-Ga2O3 single crystals with the Czochralski method were numerically analyzed. The flow and temperature fields for crystals that were four and six inches in diameter were studied. When the crystal diameter is large and the crucible space becomes small, the flow field near the crystal edge becomes poorly controlled, which results in an unreasonable temperature field, which makes the interface velocity very sensitive to the phase boundary shape. The effect of seed rotation with increasing crystal diameter was also studied. With the increase in crystal diameter, the effect of seed rotation causes more uneven temperature distribution. The difficulty of growing large-size bulk β-Ga2O3 single crystals with the Czochralski method is caused by spiral growth. By using dynamic mesh technology to update the crystal growth interface, the calculation results show that the solid–liquid interface of the four-inch crystal is slightly convex and the center is slightly concave. With the increase of crystal growth time, the symmetry of cylindrical crystal will be broken, which will lead to spiral growth. The numerical results of the six-inch crystal show that the whole solid–liquid interface is concave and unstable, which is not conducive to crystal growth.

Effects of the diameter of rutile (TiO2) single crystals grown using tilting-mirror-type infrared heating image furnace on solid–liquid interface and etch pit density

2011 ◽  
Vol 317 (1) ◽  
pp. 135-138 ◽  
Author(s):  
Md. Abdur Razzaque Sarker ◽  
Satoshi Watauchi ◽  
Masanori Nagao ◽  
Takashi Watanabe ◽  
Isamu Shindo ◽  
...  
Keyword(s):  
Single Crystals ◽  
Liquid Interface ◽  
Infrared Heating ◽  
Etch Pit Density ◽  
Rutile Tio2 ◽  
Etch Pit ◽  
Solid Liquid Interface ◽  
Solid Liquid

scholarly journals Morphologies of solid-liquid interface and surface steps during rapid growth of BaB2O4 single crystals

2007 ◽  
Vol 50 (4) ◽  
pp. 539-545 ◽  
Author(s):  
XiuHong Pan ◽  
Fei Ai ◽  
WeiQing Jin ◽  
Yan Liu ◽  
Ying Zhang
Keyword(s):  
Single Crystals ◽  
Rapid Growth ◽  
Liquid Interface ◽  
Surface Steps ◽  
Solid Liquid Interface ◽  
Solid Liquid

Observation of Femtosecond Acoustic Anomaly in a Solid Liquid Interface

2020 ◽  
Vol 124 (5) ◽  
pp. 2987-2993
Author(s):  
Chi-Kuang Sun ◽  
Yi-Ting Yao ◽  
Chih-Chiang Shen ◽  
Mu-Han Ho ◽  
Tien-Chang Lu ◽  
...  
Keyword(s):  
Liquid Interface ◽  
Acoustic Anomaly ◽  
Solid Liquid Interface ◽  
Solid Liquid
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