Thermophysical and Ultrasonic Properties on Magnesium Oxide
U C Srivastava1, S P Singh2
1Dr U C Srivastava*, Assistant Professor,Deptt.of Physics,Amity university,Noida-India.
2Dr S P Singh, Assistant Professor,Deptt.of Physics, Swami Vivekanand Govt.P.G. College, Lohaghat, Champawat , Uttrara khand, India.
Manuscript received on 5 August 2019. | Revised Manuscript received on 11 August 2019. | Manuscript published on 30 September 2019. | PP: 1567-1571 | Volume-8 Issue-3 September 2019 | Retrieval Number: C4321098319/2019©BEIESP | DOI: 10.35940/ijrte.C4321.098319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In present manuscript phonon dynamics of alkaline-earth oxides, MgO by including the three-body interconnections in the framework of ‘van der Waals three-body force shell model’ (VTBFSM) is based on my thorough theoretical study of the relevant research papers on this topic. The studies of lattice energy and other properties made by Huggins and Sakamoto  .The instigate work of Kellerman  for lattice dynamics of the alkali halides has provided attentive theoretically as well as experimentally. The thermal properties, densities of states (DOS), structure analysis, direction-dependent ultrasonic velocities and Debye velocity of magnesium oxide have been evaluated in present investigation. However, a considerable improvement in computational results has been obtained by the use of the present model and successfully predicted the lattice dynamic of MgO for the study of bulk thermo-elastic properties. The results of this investigation are discussed successfully with available experimental data.
Keywords: Phonon, Thermodynamic properties, Density of state, Ultrasonic velocity.
Scope of the Article: Properties and Mechanics of Concrete