Single crystal research — Crystal quality control — Industrial production

1985 ◽  
Vol 57 (3-4) ◽  
Author(s):  
R. Voszka
Keyword(s):  
Quality Control ◽  
Single Crystal ◽  
Industrial Production ◽  
Crystal Quality

Fine-control-valve of halide perovskite single crystal quality for high performance X-ray detection

2021 ◽  
Author(s):  
Weijun Li ◽  
Huayang Li ◽  
Jinmei Song ◽  
Chunjie Guo ◽  
Huimao Zhang ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Performance ◽  
Control Valve ◽  
Crystal Quality ◽  
X Ray ◽  
Fine Control ◽  
Halide Perovskite

scholarly journals Precursor Phenomena of Barium Titanate Single Crystals Grown Using a Solid-State Single Crystal Growth Method Studied with Inelastic Brillouin Light Scattering and Birefringence Measurements

Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3171 ◽  
Author(s):  
Soo Han Oh ◽  
Jae-Hyeon Ko ◽  
Ho-Yong Lee ◽  
Iwona Lazar ◽  
Krystian Roleder
Keyword(s):  
Crystal Growth ◽  
Solid State ◽  
Barium Titanate ◽  
Single Crystal ◽  
Single Crystals ◽  
Melting Process ◽  
Point Of View ◽  
Crystal Quality ◽  
Cubic Phase ◽  
Growth Method

The nature of precursor phenomena in the paraelectric phase of ferroelectrics is one of the main questions to be resolved from a fundamental point of view. Barium titanate (BaTiO3) is one of the most representative perovskite-structured ferroelectrics intensively studied until now. The pretransitional behavior of BaTiO3 single crystal grown using a solid-state crystal growth (SSCG) method was investigated for the first time and compared to previous results. There is no melting process in the SSCG method, thus the crystal grown using a SSCG method have inherent higher levels of impurity and defect concentrations, which is a good candidate for investigating the effect of crystal quality on the precursor phenomena. The acoustic, dielectric, and piezoelectric properties, as well as birefringence, of the SSCG-grown BaTiO3 were examined over a wide temperature range. Especially, the acoustic phonon behavior was investigated in terms of Brillouin spectroscopy, which is a complementary technique to Raman spectroscopy. The obtained precursor anomalies of the SSCG-grown BaTiO3 in the cubic phase were similar to those of other single crystals, in particular, of high-quality single crystal grown by top-seeded solution growth method. These results clearly indicate that the observed precursor phenomena are common and intrinsic effect irrespective of the crystal quality.

SrxBa1−xNb2O6 single crystal fibers: dependence of crystal quality on growth parameters

1992 ◽  
Vol 123 (3-4) ◽  
pp. 423-435 ◽  
Author(s):  
Joyce K. Yamamoto ◽  
Steven A. Markgraf ◽  
Amar S. Bhalla
Keyword(s):  
Single Crystal ◽  
Growth Parameters ◽  
Crystal Quality ◽  
Crystal Fibers

Effects of melt aging and off-stoichiometric melts on CsSrI3:Eu2+ single crystal scintillators

2016 ◽  
Vol 18 (12) ◽  
pp. 8453-8461 ◽  
Author(s):  
Yuntao Wu ◽  
Mariya Zhuravleva ◽  
Jesse Ashby Johnson II ◽  
Hua Wei ◽  
Merry Koschan ◽  
...  
Keyword(s):  
Single Crystal ◽  
Gamma Ray ◽  
Crystal Quality

In this work, the effects of vacuum aging of the melt (melt aging) and use of off-stoichiometric melts via introduction of excess CsI on the crystal quality and scintillation properties of CsSrI3:Eu2+, a promising scintillator for gamma-ray detection applications, are investigated.

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