Mechanical and Thermophysical Properties of Cerium Monopnictides

Bhalla, Vyoma; Singh, Devraj; Jain, Shalini

doi:10.1007/s10765-016-2038-0

Cited by 12 publications

(1 citation statement)

References 29 publications

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“…The Debye average velocity increases with the increase of temperature. This type of behavior of wave velocity for the chosen material is similar to other NaCl-type materials [31,32].…”

Section: Directionsupporting

confidence: 77%

Temperature Dependence of Elastic and Ultrasonic Properties of Sodium Borohydride

Singh¹,

Mishra²,

Kumar³

et al. 2017

Comm. in Phys.

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We present the temperature dependent elastic and ultrasonic properties of sodium borohydride. The second and third order elastic constants of NaBH 4 have been computed in the temperature range 0-300K using Coulomb and Born-Mayer potentials. The sodium borohydride crystallizes into NaCl-type structure. The computed values of second order elastic constants have been applied to evaluate the temperature dependent mechanical properties such as bulk modulus, shear modulus, tetragonal modulus, Poisson's ratio and Zener anisotropy factor and ultrasonic velocity to predict futuristic information about sodium borohydride. The fracture to toughness ratio (bulk modulus/shear modulus) in sodium borohydride varied from 1.91 to 1.62, which shows its behavioral change from ductile to brittle on increasing the temperature. Then, ultrasonic Grüneisen parameters have been computed with the use of elastic constants in the temperature regime 100-300K. The obtained results have been discussed in correlation with available experimental and theoretical results.

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“…The Debye average velocity increases with the increase of temperature. This type of behavior of wave velocity for the chosen material is similar to other NaCl-type materials [31,32].…”

Section: Directionsupporting

confidence: 77%