scholarly journals Optical and luminescence properties of Er,Yb:YAG crystals grown by horizontal directional crystallization method

2019 ◽  
Vol 26 (1) ◽  
pp. 35-40
Author(s):  
S.V. Nizhankovskyi ◽  
Keyword(s):  
Luminescence Properties ◽  
Directional Crystallization ◽  
Crystallization Method ◽  
Horizontal Directional Crystallization

Cathodoluminescence and scintillation characteristics of YAG:Ce crystals grown by horizontal directional crystallization in a protective atmosphere

2009 ◽  
Vol 35 (10) ◽  
pp. 964-966 ◽  
Author(s):  
S. V. Nizhankovsky ◽  
A. Ya. Dan’ko ◽  
O. V. Zelenskaya ◽  
V. A. Tarasov ◽  
Yu. V. Zorenko ◽  
...  
Keyword(s):  
Protective Atmosphere ◽  
Directional Crystallization ◽  
Horizontal Directional Crystallization

High-resistant castable corrosion-resistant nickel alloy for monocrystalline casting by the directional crystallization method

2008 ◽  
Vol 50 (1-2) ◽  
pp. 13-17
Author(s):  
S. B. Belikov ◽  
A. G. Andrienko ◽  
S. V. Gaiduk ◽  
V. V. Kononov ◽  
V. E. Zamkovoi
Keyword(s):  
Nickel Alloy ◽  
Directional Crystallization ◽  
Corrosion Resistant ◽  
Crystallization Method

scholarly journals La1–yBayF3–y Solid Solution Crystals as an Effective Solid Electrolyte: Growth and Properties

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 629
Author(s):  
Irina I. Buchinskaya ◽  
Denis N. Karimov ◽  
Nikolay I. Sorokin
Keyword(s):  
Solid Solution ◽  
Electrical Conductivity ◽  
Ionic Conductivity ◽  
Solid Electrolyte ◽  
Solid Electrolytes ◽  
Directional Crystallization ◽  
Ionic Radii ◽  
Crystallization Method ◽  
Maximum Conductivity ◽  
Weak Influence

A series of nonstoichiometric La1–yBayF3–y (0 ≤ y ≤ 0.12) single crystals with a tysonite-type structure (sp. gr. P-3c1) was grown from the melt by the directional crystallization method in a fluorinating atmosphere, and some physical properties were characterized. The concentration dependence of electrical conductivity σdc(y) La1–yBayF3–y crystals was studied. The composition of the ionic conductivity maximum for this solid electrolyte was refined. It was confirmed that the maximum conductivity σmax = 8.5 × 10–5 S/cm (295 K) was observed at the composition ymax = 0.05 ± 0.01. Analysis of the electrophysical data for the group of tysonite-type solid electrolytes R1–yMyF3–y (M = Ca, Sr, Ba, Eu2+ and R = La, Ce, Pr, Nd) showed that the compositions of the maxima of their conductivity were close and amount to y = 0.03−0.05. This fact indicates a weak influence of the size effect (ionic radii R3+ and M2+) on the value of ymax for R1–yMyF3–y solid electrolytes.

scholarly journals Modelling and numerical analysis of structures made of single-crystal materials

Haditechnika ◽  
2020 ◽  
Vol 54 (6) ◽  
pp. 22-26
Author(s):  
Tetiana Berlizova
Keyword(s):  
Single Crystal ◽  
Gas Turbine ◽  
Power Plants ◽  
Cooling System ◽  
Operating Conditions ◽  
Directional Crystallization ◽  
Turbine Engine ◽  
Heat Resistant ◽  
Crystallization Method ◽  
Turbine Construction

In gas turbine construction, heat-resistant single-crystal materials have taken a strong place. Single-crystal alloy blades are used in aircraft, ships, power plants, etc. Today, the temperature of the blades exceeds the temperature of heat-resistant alloys in normal operating conditions, and they can withstand such high temperatures only with the help of an effective cooling system. In the production of single-crystal blades of a gas turbine engine, the directional crystallization method has been widely used.

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