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Padole, N. N.
- Study of Enhancement of Ultrasonic Velocity in Methanol Based Silver Nanoparticle Suspension
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PDF Views:2
Authors
Affiliations
1 Department of Physics, RTM Nagpur University, Nagpur-440003, IN
2 Department of Physics, RTM Nagpur University, Nagpur-440033, IN
3 Department of Physics, Arts, Commerce and Science College, Maregaon-445303, IN
4 Department of Physics, S.P. Pune University, Pune-411007, IN
1 Department of Physics, RTM Nagpur University, Nagpur-440003, IN
2 Department of Physics, RTM Nagpur University, Nagpur-440033, IN
3 Department of Physics, Arts, Commerce and Science College, Maregaon-445303, IN
4 Department of Physics, S.P. Pune University, Pune-411007, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 39, No 3 (2017), Pagination: 79-82Abstract
In this study, the methanol-based nanofluids was prepared by synthesizing silver nanoparticles by thermal decomposition method and then dispersed Ag nanoparticles in pure methanol using magnetic stirring equipment. The main objective of this paper is to measure the acoustic and thermo physical parameters of the methanol-based nanofluids at different concentration and at different temperature. We have also measured the particle size, Miller indices and lattice parameters of silver nanoparticles. The multifrequency interferometer techniques at the frequency of piezoelectric transducers 1 MHz is applied for measuring the ultrasonic velocity of methanol-based nanofluids with an accuracy of ±0.1 m. The results show that ultrasonic velocity decreases initially with an increase of the nanoparticle weight/volume fraction, and then again increases and the enhancement is observed at concentration of 0.008 ?. Dipole-Induced dipole type of interaction and Agglomerisation of nanoparticles is considered to be the main reason for the ultrasonic velocity enhancement.Keywords
Silver Nanoparticles, XRD, Ultrasonic Velocity.Full Text
References
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- Chimankar O.P., Padole N.N., Pawar N.R. and Dhoble S.J., Acoustic wave propagation in CaCO3 nanofluids, J.Nanoflu. 4 (2015) 151-156.
- Varughese G., Lincy T., Sincy S. and Usha K.T., Characterization and elastic study on zinc sulphide nanofluid doped with neodymium, Am. Chem. Sci. J. 5 (2015) 148-155.
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- Ultrasonic Velocity and Absorption Study of Binary Mixtures of Methanol With Acrylonitrile by Interferometric Method at Different Frequencies
Abstract Views :168 |
PDF Views:0
Authors
Affiliations
1 Department of Physics, RTM Nagpur University, Nagpur-440033, IN
2 Department of Electronics, Anand Niketan College, Warora, IN
1 Department of Physics, RTM Nagpur University, Nagpur-440033, IN
2 Department of Electronics, Anand Niketan College, Warora, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 34, No 2-3 (2012), Pagination: 49-52Abstract
Ultrasonic velocity and absorption measurement provides qualitative information regarding the nature and strength of interaction in the liquid mixtures. These studies are important because of their extensive use in the engineering, process industries, textile industries, pharmaceutical industries, nuclear energy industries. A growing specialty application for acrylonitrile is in the manufacture of carbon fibers. These are produced by pyrolysis of oriented poly acrylonitrile fibers and are used to reinforce composites for high-performance applications in the aircraft, defense and aerospace industries. Present paper reports the ultrasonic velocity (u), absorption (α), density (ρ), and viscosity (η), which has been measured at different frequencies (1 MHz to 10 MHz) in the binary mixtures of methanol with acrylonitrile over the entire range of composition at temperature 303 K. Van der Waal’s constant (b), adiabatic compressibility (β), acoustic impedance (Z), molar volume (V), relaxation time (τ), Wada constant (W), free length (Lf), isothermal compressibility (βi), etc have been calculated. The result has been used to discuss the nature and strength of molecular intermolecular interactions in the system. These variations depend on structural changes due to intermolecular interactions in short regions around the molecules.Keywords
Ultrasonic Velocity, Absorption, Compressibility, Van Der Waal’s Constant, Acrylonitrile and Methanol.Full Text