Refine your search
Collections
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
Paikaray, R.
- Study of Physical and Acoustical Properties of Silver Nanofluid
Abstract Views :166 |
PDF Views:3
Authors
Affiliations
1 Department of Physics, Veer Surendra Sai University of Technology, Sambalpur -768018, IN
2 Department of Physics, Ravenshaw University, Cuttack -753003, IN
1 Department of Physics, Veer Surendra Sai University of Technology, Sambalpur -768018, IN
2 Department of Physics, Ravenshaw University, Cuttack -753003, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 38, No 2 (2016), Pagination: 35-39Abstract
Nanoparticles (1-100 nm) in base fluids have numerous exceptional physiochemical properties absolutely different from those of bulk metal due to their extremely small size and large superficial area to volume. A one-step chemical method has been developed for the preparation of stable, non agglomerated silver nano fluid without using any surfactant. Silver nanofluid is prepared by using silver nitrate as a source for silver nanoparticles, distilled water as a base fluid, and tannic acid (tannin) as reducing agent of Ag+ ions. The formation of colloidal silver was followed by X-ray diffraction topography, UV-visible absorption spectroscopy monitoring the growth of the nanoparticles. Investigation of sample was carried out to study physical properties like absorbance; electrical conductance. The ultrasonic study has been done in different concentration of silver nano fluid at different temperature. The different acoustical parameters are calculated using the experimental data of ultrasonic velocity, density and viscosity. The characteristic behaviors of the acoustic parameters are observed at the particular temperature/particle concentration. The results are discussed in correlation with the thermophysical properties predicting the enhanced thermal conductivity of the samples. The absorbance values and the electrical conductance of the samples increase with the gradual addition of silver nitrate solution to tannic acid.Keywords
Nanofluid, Colloidal Solution, Ultrasonic Velocity, Acoustical Parameter, Absorbance, Electrical Conductance.Full Text
- Ultrasonic Treatment in Surface Modification of Sisal Fiber
Abstract Views :156 |
PDF Views:0
Authors
Affiliations
1 Department of Physics, Christ College, Cuttack, IN
2 Department of Physics, Veer Surendra Sai University of Technology, Sambalpur, Burla, IN
3 Department of Chemistry, Veer Surendra Sai University of Technology, Sambalpur, Burla, IN
4 Department of Physics, Ravenshaw University, Cuttack, IN
1 Department of Physics, Christ College, Cuttack, IN
2 Department of Physics, Veer Surendra Sai University of Technology, Sambalpur, Burla, IN
3 Department of Chemistry, Veer Surendra Sai University of Technology, Sambalpur, Burla, IN
4 Department of Physics, Ravenshaw University, Cuttack, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 36, No 4 (2014), Pagination: 80-84Abstract
Ultrasonic wave propagation in solvent mixture is an important technique in fiber engineering technology. Surface bleaching and surface modification of natural fiber can be well maintained when the basic interaction can be studied in natural fiber-reinforced composites with solvent mixture. In the present investigation sisal fiber has been chosen as natural fiber and its surface is treated with solvent mixture of malleic acid with ethanol. The ultrasonic velocities are determined in binary mixture of malleic acid and ethanol with different frequencies (1 MHz, 3 MHz and 5 MHz) at temperature 303 K. The different acoustical properties like intermolecular free length, isentropic compressibility, acoustic impedance and bulk modulus are computed from the ultrasonic velocity and density of the mixture. The variation of these parameters relating to chemical composition of fiber and solvent mixture are discussed in terms of intermolecular interactions.Keywords
Ultrasonic Velocity, Binary Mixture, Intermolecular Free Length, Isentropic Compressibility, Acoustic Impedance, Bulk Modulus.Full Text
- Study of Ultrasonic Velocity in DBP-Polar Liquid Mixtures
Abstract Views :189 |
PDF Views:0
Authors
N. Mohanty
1,
R. Paikaray
1
Affiliations
1 Department of Physics, Ravenshaw University, Cuttack-753003, IN
1 Department of Physics, Ravenshaw University, Cuttack-753003, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 40, No 3 (2018), Pagination: 80-83Abstract
Ultrasonic velocity of binary mixture of Di-n-butyl phthalate (DBP) with polar liquid aniline is measured experimentally at different frequencies (1MHz, 3MHz, 5MHz and 7MHz) and at constant temperature 308K. Using theoretical relations such as Nomoto's relation (NR), Free length theory (FLT), and ideal mixing relation (IMR), Junjie's relation(JM), and Schaaffs collision factor theory(CFT) ultrasonic velocity (U) is evaluated at constant temperature 308K and at frequencies 1MHz, 3MHz, 5MHz and 7MHz for the binary mixture of DBP with aniline. The percentage of deviation of experimental values from theoretical values and average absolute percentage of deviation (AAPD) are calculated. The relative applicability and merits of these theories were checked and discussed.Keywords
Binary Mixture, Ultrasonic Velocity, Frequency.Full Text
References
- Nath G. and Paikaray R., Effect of frequency on acoustic parameters in a binary mixture of polar liquids, Ind. J.Phys. 83 (2009), 1567-1574.
- Paikaray R. and Mohanty N., Ultrasonic investigation of molecular interactions in a binary mixture of DBP with Benzene at different frequencies, J. Acoust. Soc. Ind. 37 (2010), 70-73.
- Vysyaraju S. Diwakar P.P. and Samatha K., Mesurement of ultrasonic velocity in binary liquid mixture of N,Ndimethyl actetamide(NNDA)+diethyl-amine(DEA), IJIRSET, 5(11) (2016), 18972-18978.
- Nath G., Sahu S. and Paikaray R., Acoustical investigation of molecular interaction in binary mixture of acetone and xylene (mixed isomers) at different frequencies, J. Acoust. Soc. Ind. 35 (2008), 115-120.
- Resa P., Elvira L., Montero de Espinosa F. and GomezUllate Y., Ultrasonic velocity in water-ethanol-sucrose mixtures during alcoholic fermentation, Ultrasonics, 43(4) (2005), 247-252.
- Petak A. and Dolcek A., Excess molar volumes of binary liquid mixtures of cyclohexane - carbon tetrachloride and toluene - benzene at various temperatures, Acta Chem. Slov. 45 (1998), 153-160.
- Sathyanarayana B., Savitha T., Jyostna and Satyanarayana N., Acoustic studies of binary mixtures of N-methylacetamide with some chloroethanes and chloroethenes at 308.15 K, Indian J Pure Appl. Phys. 44 (2006), 587-591.
- Zatale D.A., Chaware A.R. and Zatale K.D., Study and analysis of thermoacoustic parameters of petrochemical product and its mixtures at different temperatures from 298.15K to 318.15K, Arch. Phys. Res., 2(1) (2011), 202-207.
- Rama Rao G.V., Sarma A.V. , Siva J. Krishna R. and Ramababu C., Theoretical evaluation of ultrasonic velocities in binary liquid mixtures of o-chlorophenol at different temperatures, Indian J. Pure Appl. Phys., 43(5) (2005), 355-358.
- Pandiyan V., Oswal S.L., Malek N.I. and Vasantharani P., Thermodynamic and acoustic properties of binary mixtures of ethers. V. Diisopropyl ether or oxolane with 2- or 3-chloroanilines at 303.15, 313.15 and 323.15K, Thermochim. Acta, 524 (2011), 140-150.
- Mohanty N. and Paikaray R., Theoretical evaluation of ultrasonic velocity of binary mixture of Di-n-Butyl(DBP) with phenol, Open J. Phys. 19(1) (2012), 117-120.
- Mohanty N. and Paikaray R., Evaluation of Thermodynamical Acoustic Parameters of Binary mixture of DBP with Toluene at 308 K and at Different Frequencies, Res. J. Chem. Sci., 3(5) (2013), 71-82.
- Bhatnagar D., Joshi D., Gupta R., Kumar Y., Kumar A. and Jain C.L., Studies on Thermo acoustic Parameters in binary liquid mixtures of MIBK with 1-Propanol, 1Butanol and 1-Pentanol at 303.15K-A new approach by Direct Measurement of Acoustic Impedance, Res. J. Chem. Sci., 1(5) (2011), 6-13.
- Rama Rao G.V., Sandhya Sri P.B., Sarma A.V. and Rambabu C., Comparative study of theoretical ultrasonic velocities of binary mixtures of methanol and pyridine at different temperatures, Indian J. Pure Appl. Phys., 45(2) (2007), 143-150.