Many-body effects on the third-order elastic constants and pressure derivatives of the second-order-elastic constants of NaCl-structure alkali halides

1977 ◽  
Vol 15 (4) ◽  
pp. 2337-2347 ◽  
Author(s):  
D. S. Puri ◽  
M. P. Verma
Keyword(s):  
Elastic Constants ◽  
Alkali Halides ◽  
Second Order ◽  
Many Body ◽  
Third Order ◽  
The Third ◽  
Third Order Elastic Constants ◽  
Many Body Effects ◽  
Derivatives Of

scholarly journals Зависимость от давления коэффициентов упругости алюминий-магниевого сплава AMg6 и нанокомпозитного сплава n-Mg6/C-=SUB=-60-=/SUB=-

2018 ◽  
Vol 60 (4) ◽  
pp. 765
Author(s):  
В.М. Прохоров ◽  
Е.Л. Громницкая
Keyword(s):  
Elastic Constants ◽  
Second Order ◽  
Third Order ◽  
Polycrystalline Aluminum ◽  
Piston Cylinder ◽  
Third Order Elastic Constants ◽  
Study Results ◽  
Aluminum Alloy Amg6 ◽  
Mg Content ◽  
Derivatives Of

AbstractThe ultrasonic study results for dependence of the elastic wave velocities and second-order elasticity coefficients of the polycrystalline aluminum alloy AMg6 and its nanocomposite n -AMg6/C_60 on hydrostatic pressure up to 1.6 GPa have been described. The ultrasonic research has been carried out using a highpressure ultrasonic piezometer based on the piston-cylinder device. The pressure derivatives of the secondorder elastic constants of these materials established in the present study have been compared with the results of the third-order elastic constants measurements of the test alloys using the Thurston–Brugger method. Involving available literature data, we determined the relationships between the pressure derivatives of the second-order elastic constants of the AMg6 alloy and the Mg-content and nanostructuring.

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