scholarly journals Influence of sodium trimetaphosphate on glycine phosphite single crystals grown by modified thermal gradient method

2021 ◽  
pp. 126404
Author(s):  
Subramani Supriya
Keyword(s):  
Single Crystals ◽  
Gradient Method ◽  
Thermal Gradient ◽  
Sodium Trimetaphosphate

Growth of large (1 mm) MgSiO3 perovskite single crystals: A thermal gradient method at ultrahigh pressure

2007 ◽  
Vol 92 (10) ◽  
pp. 1744-1749 ◽  
Author(s):  
A. Shatskiy ◽  
H. Fukui ◽  
T. Matsuzaki ◽  
K. Shinoda ◽  
A. Yoneda ◽  
...  
Keyword(s):  
Single Crystals ◽  
Gradient Method ◽  
Thermal Gradient ◽  
Ultrahigh Pressure ◽  
Mgsio3 Perovskite

scholarly journals Selective etching of diamond single crystals obtained by thermal–gradient method

2015 ◽  
Vol 3 (5(75)) ◽  
pp. 47
Author(s):  
Елена Михайловна Супрун ◽  
Сергей Алексеевич Ивахненко
Keyword(s):  
Single Crystals ◽  
Gradient Method ◽  
Thermal Gradient ◽  
Selective Etching ◽  
Diamond Single Crystals

Growth and characterization of large-size bismuth germanate single crystals by low thermal gradient Czochralski method

1999 ◽  
Vol 197 (4) ◽  
pp. 865-873 ◽  
Author(s):  
R.V Anantha Murthy ◽  
M Ravikumar ◽  
A Choubey ◽  
Krishan Lal ◽  
Lyudmila Kharachenko ◽  
...  
Keyword(s):  
Single Crystals ◽  
Thermal Gradient ◽  
Czochralski Method ◽  
Bismuth Germanate ◽  
Large Size

Study of effect of thermal annealing on crystalline perfection of bismuth germanate single crystals grown by low thermal gradient Czochralski method

2002 ◽  
Vol 217 (10) ◽  
Author(s):  
A. Choubey ◽  
G. Bhagavannarayana ◽  
Yu. V. Shubin ◽  
B. R. Chakraborty ◽  
K. Lal
Keyword(s):  
Single Crystals ◽  
Thermal Annealing ◽  
Thermal Gradient ◽  
Czochralski Method ◽  
Bismuth Germanate ◽  
Crystalline Perfection

AbstractBismuth germanate single crystals containing low angle and

scholarly journals Nucleation Control in Physical Vapor Transport Growth of AlN Single Crystals on Polycrystal Tungsten Substrates

2019 ◽  
Vol 26 (2) ◽  
pp. 139-142
Author(s):  
Honglei WU ◽  
Zuoyan QIN ◽  
Xueyong TIAN ◽  
Zhenhua SUN ◽  
Baikui LI ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Temperature Field ◽  
High Temperature ◽  
Single Crystals ◽  
Thermal Gradient ◽  
Vapor Transport ◽  
Physical Vapor Transport ◽  
Heating Process ◽  
X Ray ◽  
Tungsten Substrate

The improved resistively-heated furnace with two heaters established a vertical thermal gradient to control nucleation during AlN single crystals Physical Vapor Transport (PVT) growth on polycrystal tungsten substrates. During the high temperature (> 1850 °C) heating process, the reverse temperature field (i.e., the temperature difference between the sublimation zone and the crystalline zone ΔT < 0) was obtained to reduce the number of nuclei on the tungsten substrate. During growth, the proper positive values of ΔT T were chosen to content the supersaturation values (0.25 < S < 0.3). The reverse temperature condition during high temperature (> 1850 °C) cooling was fulfilled to avoid recrystallization on grown AlN crystal. AlN single crystals made through the method were characterized by X-ray diffractions (XRD) and Raman spectroscopy.

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