New model of the bond diffractometer for precise determination of lattice parameters and thermal expansion of single crystals

1978 ◽  
Vol 13 (5) ◽  
pp. 561-567 ◽  
Author(s):  
K. Łukaszewicz ◽  
D. Kucharczyk ◽  
M. Malinowski ◽  
A. Pietraszko
Keyword(s):  
Thermal Expansion ◽  
Single Crystals ◽  
Precise Determination ◽  
Lattice Parameters ◽  
New Model

scholarly journals Precise determination of phonon constants in lead-free monoclinic (K0.5Na0.5)NbO3 single crystals

2014 ◽  
Vol 104 (1) ◽  
pp. 011902 ◽  
Author(s):  
Muhammad Asif Rafiq ◽  
Peter Supancic ◽  
M. Elisabete Costa ◽  
Paula M. Vilarinho ◽  
Marco Deluca
Keyword(s):  
Single Crystals ◽  
Precise Determination ◽  
Lead Free

Polymorphic transformations and thermal expansion of some modifications in Ag1.5Cu0.5Se and Ag0.4Cu1.6Se

2019 ◽  
Vol 33 (23) ◽  
pp. 1950271 ◽  
Author(s):  
Y. I. Aliyev ◽  
Y. G. Asadov ◽  
A. O. Dashdemirov ◽  
R. D. Aliyeva ◽  
T. G. Naghiyev ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
High Temperature ◽  
Temperature Dependence ◽  
Single Crystals ◽  
Diffraction Method ◽  
Lattice Parameters ◽  
X Ray Diffraction ◽  
Polymorphic Transformations ◽  
X Ray

The Ag[Formula: see text]Cu[Formula: see text]Se and Ag[Formula: see text]Cu[Formula: see text]Se compounds have been synthesized and grown as single crystals. High-temperature X-ray diffraction method was used to study polymorphic transformations. It is shown that the Ag[Formula: see text]Cu[Formula: see text]Se crystals of high-temperature FCC modification are decomposed into Ag2Se and AgCuSe when the temperature decreases below T = 488 K and Ag[Formula: see text]Cu[Formula: see text]Se is decomposed into Cu2Se and AgCuSe when the temperature decreases below T = 540 K. Transformations in both compounds are reversible. Crystalline parameters are obtained and the temperature dependence of the lattice parameters for each phase is built.

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