On the theory of the temperature variation of the elastic constants of solid solutions of alkali halides

1973 ◽  
Vol 16 (6) ◽  
pp. 866-868
Author(s):  
A. A. Botaki ◽  
O. V. Danilin ◽  
A. V. Sharko
Keyword(s):  
Temperature Variation ◽  
Solid Solutions ◽  
Elastic Constants ◽  
Alkali Halides

Elastic constants of solid solutions of single crystals of the alkali halides

1973 ◽  
Vol 16 (7) ◽  
pp. 938-941
Author(s):  
V. L. Ul'yanov ◽  
A. A. Botaki ◽  
A. V. Sharko
Keyword(s):  
Single Crystals ◽  
Solid Solutions ◽  
Elastic Constants ◽  
Alkali Halides

Elastic constants of some NaCl type alkali halides

1966 ◽  
Vol 18 (1) ◽  
pp. 265-277 ◽  
Author(s):  
R. C. Lincoln ◽  
K. M. Koliwad ◽  
P. B. Ghate
Keyword(s):  
Elastic Constants ◽  
Alkali Halides

Defects and Ion Transport Properties of Yttrium Doped Zirconia

1996 ◽  
Vol 453 ◽  
Author(s):  
P. J. Chaba ◽  
P. E. Ngoepe
Keyword(s):  
Molecular Dynamics ◽  
Oxygen Vacancy ◽  
Ion Transport ◽  
Transport Properties ◽  
Temperature Variation ◽  
Yttrium Oxide ◽  
Elastic Constants ◽  
Oxygen Transport ◽  
Solid Oxide ◽  
Set Up

AbstractA comparison of calculated and experimental temperature variation of elastic constants were used to predict types of oxygen—vacancy dopant clusters in yttria stabilised cubic zirconia, which serves as an electrolyte in solid oxide fuelcells. Such clusters were incorporated in supercells set up for molecular dynamics studies, where oxygen transport properties were investigated at concentrations of 9.4 and 24 mol % of yttrium oxide and up to 1600K.

scholarly journals Interionic Potentials for Some Alkali Halides from Crystal Data Measured at Different Temperatures

1974 ◽  
Vol 29 (8) ◽  
pp. 1202-1205 ◽  
Author(s):  
Silvano Romano ◽  
Chiara Margheritis ◽  
Cesare Sinistri
Keyword(s):  
Elastic Constants ◽  
Pair Potential ◽  
Alkali Halides ◽  
Crystal Data ◽  
Lattice Constants ◽  
Interionic Distance ◽  
Repulsive Potentials ◽  
Different Temperatures

Values at different temperatures of lattice constants and their derivatives with respect to T. and of elastic constants were used to obtain the derivatives with respect to the minimum interionic distance of the repulsive potentials for the crystals CsCl, CsBr, ClI, NaCl, KCl and KBr. The derivatives thus calculated were then subjected to a computer fitting to yield the aij and b constants of the interionic repulsive pair potential: Rφij = aij exp{ - brij}.

Absorption in Solid Solutions of Alkali Halides

1968 ◽  
Vol 24 (2) ◽  
pp. 356-362 ◽  
Author(s):  
Nobukata Nagasawa ◽  
Hideyuki Nakagawa ◽  
Yoshio Nakai
Keyword(s):  
Solid Solutions ◽  
Alkali Halides

Elastic Constants of the Alkali Halides at 4.2°K

1967 ◽  
Vol 161 (3) ◽  
pp. 877-887 ◽  
Author(s):  
J. T. Lewis ◽  
A. Lehoczky ◽  
C. V. Briscoe
Keyword(s):  
Elastic Constants ◽  
Alkali Halides

scholarly journals Non-destructive characterization of superionic conductor: lithium nitride

2014 ◽  
Vol 32 (4) ◽  
pp. 626-632 ◽  
Author(s):  
Pramod Yadawa
Keyword(s):  
Low Temperature ◽  
Temperature Variation ◽  
Elastic Constants ◽  
Ultrasonic Attenuation ◽  
Thermal Relaxation ◽  
Industrial Applications ◽  
Superionic Conductor ◽  
Lithium Nitride ◽  
Thermal And Electrical Properties ◽  
Non Destructive

AbstractHigher order elastic constants have been calculated in hexagonally structured superionic conductor Li3N at room temperature using the interaction potential model. The temperature variation of the ultrasonic velocities was evaluated along different angles with z axis (unique axis) of the crystal, using the second order elastic constants. The ultrasonic velocity decreased with the temperature along a particular orientation of the unique axis. Temperature variation of the thermal relaxation time and Debye average velocities was also calculated along the same orientation. The temperature dependency of ultrasonic properties was discussed in correlation with elastic, thermal and electrical properties. It has been found that the thermal conductivity is the main contributor to the behavior of ultrasonic attenuation as a function of temperature and the cause responsible for attenuation is phonon-phonon interaction. The mechanical properties of Li3N at low temperature are better than at high temperature because at low temperature it has low ultrasonic attenuation. Superionic conductor lithium nitride has many industrial applications, such as those used in portable electronic devices.

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