STUDIES ON GROWTH AND CHARACTERIZATION OF POTASSIUM DIAMMONIUM CHLORIDE (PADC) SINGLE CRYSTAL BY SOLUTION GROWTH TECHNIQUE

Author(s):  
A. Ruby

L-Valine zinc acetate (LVZA) was synthesized and its solubility was estimated in the solvent of double distilled water. Single crystals of LVZA were grown by slow evaporation solution growth technique. The cell parameters were obtained by single crystal X-ray diffraction study. Functional groups of LVZA were identified by FTIR analysis. UV-vis-NIR spectral studies showed the optical nature of LVZA. Kurtz powder technique revealed the SHG efficiency of LVZA. Thermal properties of the grown LVZA crystal were studied from TGA/ DTA and DSC spectrum. Vickers’s mechanical hardness values were found for the grown crystal.


2010 ◽  
Vol 645-648 ◽  
pp. 33-36 ◽  
Author(s):  
Nobuyoshi Yashiro ◽  
Kazuhiko Kusunoki ◽  
Kazuhito Kamei ◽  
Akihiro Yauchi

The stable long time growth with the use of Si -C-Ti ternary solution was realized by improving the thermal condition during the growth. We have succeeded in obtaining a maximum 10 mm thick bulk 6H-SiC crystal, which is the largest bulk crystal ever obtained by the solution growth technique. The obtained crystal was free of cracks and exhibited a homogeneous light green color. The crystallinity of the grown crystal was characterized by X-ray rocking curve measurements using (0006) reflection and by the molten KOH etching. The mapping of the full width at half maximum (FWHM) revealed the average FWHM around 30 arc seconds and the minimal FWHM under 16 arc seconds. The etch pit density (EPD) was typically in the range between 104 and 105 cm-2, which was comparable to that of the crystal seed.


2020 ◽  
Vol 49 (2) ◽  
pp. 181-186 ◽  
Author(s):  
V. Chithambaram ◽  
T. S. Franklin Rajesh ◽  
Geetha Palani ◽  
E. Ilango ◽  
B. Deepanraj ◽  
...  

2013 ◽  
Vol 64 (2) ◽  
pp. 20201 ◽  
Author(s):  
V. Chithambaram ◽  
S. Jerome Das ◽  
Sivakumar Krishnan ◽  
M. Basheer Ahamed ◽  
R. Arivudai Nambi

2017 ◽  
Vol 1 (6) ◽  
pp. 1107-1117 ◽  
Author(s):  
Sonia Sonia ◽  
N. Vijayan ◽  
Mahak Vij ◽  
Prashant Kumar ◽  
Budhendra Singh ◽  
...  

A good quality single crystal was grown by adopting a slow evaporation solution growth technique. The optical, thermal and mechanical properties of the title compound were examined to determine its suitability for device fabrication.


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