A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Pandey, D. K.
- Ultrasonic Properties of β-Phase Nickel Aluminide
Authors
1 Physics Department, Allahabad University, Allahabad-211002, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 28, No 1 (2006), Pagination: 4-11Abstract
The ultrasonic attenuation due to phonon-phonon interaction has been evaluated in β-phase NiAl in high temperature interval 300-1400K along the crystallographic directions <100>, <110> and <111> for longitudinal and shear waves. For this evaluation we have calculated second and third order elastic constants (SOEC and TOEC) at the different temperatures using only two basic parameters. Ultrasonic velocities and Non-linearity parameters are calculated using the elastic constants. Structural stability, abrupt change in ductility, disordering at TC may be predicted on the basis of temperature variation of the elastic constants and the ultrasonic attenuation.- Ultrasonic Attenuation in Yttrium Monochalcogenides
Authors
1 USICT, Guru Gobind Singh Indraprastha University, Sector 16C, Dwarka , New Delhi-110078, IN
2 Amity Institute of Applied Sciences, Amity University, Noida-201313, IN
3 State Council of Educational Research & Training Haryana, Gurugram-122 001, IN
4 Amity School of Engineering and Technology, Delhi, Noida-201313, IN
5 Amity Institute of Nanotechnology, Amity University, Noida-201313, IN
6 Department of Physics, P.P.N. (P.G.) College, Kanpur-208001, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 40, No 4 (2018), Pagination: 93-99Abstract
The present paper reports ultrasonic properties of yttrium chalcogenides (YCh: Ch=S, Se and Te) along <110> direction in the temperature region 100-500 K. The Coulomb and Bom-Mayer potential model is applied to compute the higher order elastic constants. These elastic constants are used to utilise for computing ultrasonic velocity, ultrasonic Grüneisen parameters, thermal conductivity and ultrasonic attenuation. Additionally, the second order elastic constants has been applied to evaluate many mechanical properties such as Young modulus, bulk modulus, Cauchy's relation, Zener's anisotropy factor, toughness to fracture ratio for the prediction about the chosen materials. The YCh follow the Born stability criterion, so these materials are mechanical stable. The toughness to fracture is greater than 0.57, so these materials are brittle in nature. The thermal conductivity is also computed by means of Slack and Berman approach. Finally the temperature ultrasonic attenuation due to phonon-phonon interaction and thermo-elastic relaxation mechanisms has been computed along <110> at room temperature. The achieved results for yttrium monochalcogenides are discussed with similar type of materials.
Keywords
Monochalcogenides, Elastic Constants, Ultrasonic Properties, Thermal Properties.References
- Vaitheeswaran G., Kanchana V., Svane A., Christensen N. E., Staun Olsen J., Jorgensen J.-E. and Gerward L., High-pressure structural study of yttrium monochalcogenides from experiment and theory, Phys. Rev. B: Condens. Matter. 83 (2011), 184108.
- Shinde S. M., Gupta S., Gupta S. K. and Jha P. R., Lattice dynamics and thermodynamical study of yttrium monochalcogenides, Comput. Mat .Sc. 92 (2014), 69-75.
- Sahoo B.D., Joshi K.D. and Gupta S.C., Pressure effect on elastic, lattice dynamic and superconducting behaviour of yttrium sulfide: A first principle study, J. Appl. Phys. 115 (2014), 123502.
- Maachou A., Aboura H., Amrani B., Khenata R., BinOmran S. and Varshney D., Structural stabilities, elastic and thermodynamic properties of scandium chalcogenides via first-principles calculations, Comput. Mater. Sci. 50 (2011), 3123-3130.
- Seddik T., Khenata R., Bouhemadou A., Guechi N., Sayede A., Varshney D., Al-Douri Y., Reshak A. H. and Bin-Omran S., External temperature and pressure effects on thermodynamic properties and mechanical stability of yttrium chalcogenides YX (X=S, Se and Te), Physica B 428 (2013), 78-88.
- Bhalla V., Singh D. and Jain S.K., Mechanical and thermophysical properties of rare-earth monopnictides, Int. J. Comput. Mater. Sci. Eng. 5 (2016), 1650012 (14pp.).
- Bhalla V. and Singh D., Anisotropic assessment of ultrasonic wave velocity and thermal conductivity in ErX (X: n, As), Indian J. Pure Appl. Phys. 54 (2016), 40-45.
- Roedhammer P., Reichardt W. and Holtzberg F., Soft-mode behavior in the phonon dispersion of YS, Phys. Rev. Lett. 40 (1978), 465-468.
- Hulliger F. and Hull J.G.W., Superconductivity in rocksalt-type compounds, Solid State Commun. 8 (1970), 1379-1382.
- Tutüncü H.M. and Srivastava G.P., Ab-initio investigations of phonon anomalies and superconductivity in the rock-salt YS, Philos. Mag. 87 (2007) 4109-4118 . 11 Steiner M.M., Eschrig H. and Monnier R., Longitudinal-acousticphonon softening in YS, LaS, and CeSe, Phy. Rev. B 45 (1992), 7183-7187.
- Morelli D.T. and Slack G.A., High Thermal Conductivity Materials, Springer, New York, (2006).
- Born M. and Mayer J.E., Zur Gittertheorie der Ionenkristalle, Z. Phys. 75 (1932), 1-18.
- Fumi F.G. and Tosi M.P., Ionic sizes and Born repulsive parameters in the NaCl-type alkali 361 halides-I. J. Phys. Chem. Solids 25 (1964), 31-43.; Tosi M.P. and Fumi F.G., Ionic sizes and Born repulsive parameters in the NaCl-type alkali 359 halides-II, J. Phys. Chem. Solids 25 (1964), 45-52.
- Leibfried G. and Haln H., Zur Temperaturabhangigkeit der Elastischen Konstantaaen von Alhalihalogenidkristallen, Z. Phys. 150 (1958), 497-525.
- Mori S. and Hiki Y., Calculation of the third- and fourth-order elastic constants of alkali halide crystals, J. Phys. Soc. Jpn. 45 (1978), 1449-1456.
- Bhalla V., Singh D. and Jain S.K., Mechanical and thermophysical properties of cerium monopnictides, Int. J. Thermophys. 37 (2016), 33 (17 pp.).
- Langueur H. and Kassali K., Density functional study of the carbon dependence of the structural, mechanic, thermodynamic, and dynamic properties of SiC alloys, Int. J. Thermophys. 38 (2017), 41.
- Singh D., Kaushik S., Pandey S. K., Mishra G. and Bhalla V., Mechanical and thermophysical properties of neptunium monopnictides, VNU J. Sc. Math- Phys. 32 (2016), 43-53.
- Bhalla V., Singh D., Mishra G. and Wan M., Mechanical and thermophysical properties of neptunium monopnictides, J. Pure Appl. Ultrason. 38 (2016) 23-27.
- Singh D., Kaushik S., Tripathi S., Bhalla V. and Gupta A.K., Temperature dependent elastic and ultrasonic properties of berkelium monopnictides, Arab. J. Sci. Eng. 39 (2014), 485-494.
- Mason W.P. and Batemann T.B., Relation between third order elastic moduli and the thermal attenuation of ultrasonic waves in nonconducting and metallic crystals, J. Acoust. Soc. Am. 40, (1966), 852.
- Yadav R.R. and Singh D., Ultrasonic attenuation in lanthanum monochalcogenides, J. Phys. Soc. Jpn. 70 (2001) 1825-1832.
- Singh D., Pandey D. K., Singh D.K. and Yadav R.R., Propagation of ultrasonic waves in neptunium monochalcogenides, Appl. Acoust. 72 (2011), 737-741.
- Bhalla V., Singh D., Mishra G. and Wan M., Mechanical and thermophysical properties of europium mono-chalcogenides, J. Pure Appl. Ultrason. 38 (2016), 23-27.
- Cousin C.S.G., New relations between elastic constants of different orders under central force interactions, J. Phys. C: Solid State Phys. 4 (1971), 1117-1123.
- Hiki Y. and Granato A.V., Anharmonicity in noble metals; higher order elastic constants, Phys. Rev. 144 (1966), 411-419.
- Bhalla V., Kumar R., Tripathy C. and Singh D., Mechanical and thermal properties of praseodymium monopnictides: an ultrasonic study, Int. J. Mod. Phys. B 27 (2013), 1350116 (28 pp.).
- Karki B.B., Ackland G.J. and Crain, Elastic instabilities in crystals from ab-initio stress-strain relations. J. Phys.: Condens. Matter 9 (1997), 8579-8590.
- Kaushik S., Bhalla V. and Singh D., Temperature dependent elastic and ultrasonic properties of silver halide crystals, J. Pure Appl. Ultrason. 36 (2014), 85-90.
- Kumar A., Singh D., Thakur R.K. and Kumar R., Mechanical and thermophysical properties of lutetium mochalcogenides: an ultrasonic study, J. Pure Appl. Ultrasonic. 39 (2007), 43-48.
- Kor S.K., Singh D. and Srivastava A.K., Ultrasonic studies of thulium monochalcogenides, Indian J. Pure Appl. Phys. 43 (2005), 355-358.
- Elastic and Ultrasonic Properties of Cadmium Oxide
Authors
1 University School of Information & Communication Technology, Guru Gobind Singh Indraprastha University, New Delhi-110 078, IN
2 Amity School of Engineering & Technology Delhi, A.U.U.P. Premises, Noida-201 313, IN
3 Department of Physics, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical Sciences for Study and Research, Veer Bahadur Singh Purvanchal University, Jaunpur-222 003, IN
4 Department of Physics, P.P.N. (P.G.) College, Kanpur-208 001, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 42, No 3 (2020), Pagination: 78-80Abstract
The attenuation of ultrasonic waves has been estimated in rocksalt type (B1) and CsCl type (B2) structures of CdO at room temperature along , and directions. First of all, the higher order elastic constants have been computed using Born model with Mori and Hiki approach. Then, the second order elastic constants (SOECs) were applied to compute the mechanical constants such as shear modulus, Young's modulus, bulk modulus, tetragonal modulus, Poisson's ratio, Pugh's indicator for finding performance of CdO. Numerous physical quantities, such as ultrasonic velocity, Debye temperature, thermal conductivity, ultrasonic Gruneisen parameter and acoustic coupling constants have been determined for the chosen material. Finally, the attenuation of ultrasonic waves has been compared in B1 and B2 phases of CdO and discussed in correlation with available findings.Keywords
Cadmium Oxide, Elastic Constants, Thermal Properties, Ultrasonic Properties.References
- Quiñones-Galván J.G., Lozada-Morales R., JiménezSandoval S., Camps E., Castrejón-Sánchez V.H., Campos-González E., Zapata-Torres M., PérezCenteno A. and Santana-Aranda M.A., Physical properties of a non-transparent cadmium oxide thick film deposited at low fluence by pulsed laser deposition. Mater. Res. Bull. 76 (2016) 376-383.
- Sagadevan S. and Veeralakshmi A., Synthesis, Structural and Dielectric Characterization of Cadmium Oxide Nanoparticles. Int. J. Chem. Mol. Eng. 8 (2014) 1492-1495.
- Yang, Y., Jin, S., Medvedeva, J.E., Ireland, J.R., Metz, A.W., Ni, J., Hersam, M.C., Freeman, A.J. and Marks, T.J., CdO as the archetypical transparent conducting oxide. Systematics of dopant ionic radius and electronic structure effects on charge transport and band structure. J. Am. Chem. Soc. 127 (2005) 8796-8804.
- Sarma, H. and Sarma, K.C., Structural characterization of cadmium oxide nanoparticles by means of X-ray line profile analysis. J. Basic App. Eng. Res. 2 (2015) 1773-1780.
- Sahoo B.D., Joshi K.D. and Gupta S.C., Ab initio calculations on structural, elastic and dynamic sta-bility of CdO at high pressures. J. Appl. Phys. 112 (2012) 093523.
- Bhardwaj P., Structural and thermophysical properties of cadmium oxide. ISRN Thermodynamics. (2012) 1-4.
- Jentys A., Grimes R.W., Gale J.D. and Catlow C.R.A., Structural properties of CdO and CIS clusters in Zeolite, Y.J. Phys. Chem. 97 (1993) 13535-13538.
- Moreno R.J.G. and Takeuchi N., First principles calculations of the ground-state properties and struc-tural phase transformation in CdO. Phys. Rev. B 66 (2002) 205205.
- Dou Y., Egdell R.G., Law D.S.L., Harrison N.M. and Searle B.G., An experimental and theoretical investigation of the electronic structure of CdO. J. Phys. Condens. Matter. 38 (1998) 8447.
- Piper L.F.J., DeMasi A., Smith K.E., Schleife A., Fuchs F., Bechstedt F., Zuniga-Pérez J. and Munoz-Sanjosé V., Electronic structure of single-crystal rocksaltCdO studied by soft x-ray spectroscopies and ab initio calculations. Phys. Rev. B 77 (2008) 125204.
- Bhalla V., Kumar R., Tripathy C. and Singh D., Mechanical and thermal properties of praseodymium monopnictides: an ultrasonic study. Int. J. Mod. Phys. B 27 (2013) 1350116.
- Jyoti B., Singh S.P., Gupta M., Tripathi S., Singh D. and Yadav R.R., Investigation of zirconium nanowire by elastic, thermal and ultrasonic analysis, Z. Naturforsch. 2020 (Article in Press), doi: 10.1515/zna-2020-0167.
- Mori S. and Hiki Y., Calculation of the third-and fourth-order elastic constants of alkali halide crystals. J. Phys. Soc. Jpn. 45 (1975) 1449-1456.
- Singh D. and Pandey D.K., Ultrasonic investigations in intermetallics. Indian Acad. Sci. 72 (2009) 389-398.