Ultrasonic properties of binary mixture of Mannitol+water at room temperature

2019 ◽  
Author(s):  
S. S. Pachore ◽  
M. S. Thane ◽  
T. P. Kulkarni ◽  
J. P. Bokare ◽  
G. T. Jinklore ◽  
...  
Keyword(s):  
Binary Mixture ◽  
Room Temperature ◽  
Ultrasonic Properties

Ultrasonic properties of binary mixture of Mannitol+rice bran oil at room temperature

2019 ◽  
Author(s):  
M. S. Thane ◽  
S. S. Pachore ◽  
T. P. Kulkarni ◽  
J. P. Bokare ◽  
G. T. Jinklore ◽  
...  
Keyword(s):  
Binary Mixture ◽  
Rice Bran ◽  
Room Temperature ◽  
Rice Bran Oil ◽  
Ultrasonic Properties

Pressure dependent ultrasonic properties of hcp hafnium metal

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ramanshu P. Singh ◽  
Shakti Yadav ◽  
Giridhar Mishra ◽  
Devraj Singh
Keyword(s):  
Elastic Constants ◽  
Pressure Range ◽  
Room Temperature ◽  
Ultrasonic Attenuation ◽  
Coupling Constants ◽  
Ultrasonic Properties ◽  
Acoustic Coupling ◽  
Third Order Elastic Constants ◽  
The Stability ◽  
The Given

Abstract The elastic and ultrasonic properties have been evaluated at room temperature between the pressure 0.6 and 10.4 GPa for hexagonal closed packed (hcp) hafnium (Hf) metal. The Lennard-Jones potential model has been used to compute the second and third order elastic constants for Hf. The elastic constants have been utilized to calculate the mechanical constants such as Young’s modulus, bulk modulus, shear modulus, Poisson’s ratio, and Zener anisotropy factor for finding the stability and durability of hcp hafnium metal within the chosen pressure range. The second order elastic constants were also used to compute the ultrasonic velocities along unique axis at different angles for the given pressure range. Further thermophysical properties such as specific heat per unit volume and energy density have been estimated at different pressures. Additionally, ultrasonic Grüneisen parameters and acoustic coupling constants have been found out at room temperature. Finally, the ultrasonic attenuation due to phonon–phonon interaction and thermoelastic mechanisms has been investigated for the chosen hafnium metal. The obtained results have been discussed in correlation with available findings for similar types of hcp metals.

Further studies on the collision-induced absorption of the fundamental band of hydrogen at room temperature

1969 ◽  
Vol 47 (24) ◽  
pp. 2745-2751 ◽  
Author(s):  
G. Varghese ◽  
S. Paddi Reddy
Keyword(s):  
Binary Mixture ◽  
Infrared Absorption ◽  
Path Length ◽  
Room Temperature ◽  
Absorption Coefficients ◽  
Fundamental Band ◽  
Induced Absorption ◽  
Two Peaks

The collision-induced infrared absorption of the fundamental band of hydrogen in H2–O2 and H2–Xe mixtures was studied at room temperature at a path length of 105.2 cm at pressures up to 250 atm for different base pressures of hydrogen. The enhancement absorption profiles of the band in H2–O2 mixtures show the usual features of collision-induced absorption. However, the enhancement profiles in H2–Xe mixtures show some interesting new features. These are: the separation between the peaks of the two components of the Q branch remains almost constant with increasing density of the mixture; at all densities, the intensities of these two peaks are almost equal; and the lines of the quadrupolar branches O and S are more pronounced than those in any other binary mixture of hydrogen studied previously. Integrated absorption coefficients were measured for each of the mixtures and the binary and ternary absorption coefficients were derived. The values of the binary coefficients are 6.12 × 10−35 cm6 s−1 for H2–O2, and 11.34 × 10−35 cm6 s−1 for H2–Xe. The ternary coefficient is zero for H2–O2, whereas it has a large negative value for H2–Xe.

Ideal Gas Solubilities and Solubility Selectivities in a Binary Mixture of Room-Temperature Ionic Liquids

2008 ◽  
Vol 112 (8) ◽  
pp. 2335-2339 ◽  
Author(s):  
Alexia Finotello ◽  
Jason E. Bara ◽  
Suguna Narayan ◽  
Dean Camper ◽  
Richard D. Noble
Keyword(s):  
Ionic Liquids ◽  
Binary Mixture ◽  
Room Temperature ◽  
Ideal Gas ◽  
Room Temperature Ionic Liquids ◽  
Gas Solubilities

ELASTIC AND ACOUSTIC PROPERTIES OF HEXAGONALCr2NbCOMPOUND

2014 ◽  
Vol 02 (03n04) ◽  
pp. 1450001
Author(s):  
PRAMOD KUMAR YADAWA
Keyword(s):  
Sound Velocity ◽  
Room Temperature ◽  
Ultrasonic Attenuation ◽  
Acoustic Properties ◽  
Third Order ◽  
Jones Potential ◽  
Ultrasonic Properties ◽  
Third Order Elastic Constants ◽  
Ultrasonic Sound ◽  
Thermal And Electrical Properties

The ultrasonic properties like ultrasonic sound velocity in the hexagonal structured Cr2Nb compound have been studied along unique axis at room temperature. The second- and third-order elastic constants (SOECs and TOECs) have been calculated for this compound using Lennard–Jones potential. The velocities VLand VS1have minima and maxima respectively with 45° with unique axis of the crystal, while VS2increases with the angle from unique axis. Debye average sound velocities of Cr2Nb have been found to be increasing with the angle and has maximum at 55° with unique axis at room temperature. Hence, when a sound wave travels at 55° with unique axis of this material, then the average sound velocity is found to be maximum. The inconsistent behavior of angle dependent velocities is associated to the action of SOECs. The ultrasonic properties are discussed in correlation with elastic, thermal and electrical properties. It has been found that the thermal conductivity is the main contributor to the behavior of ultrasonic attenuation and the cause of attenuation is phonon–phonon interaction. The mechanical properties of Cr2Nb are better than other chromium-based alloys ( Cr2Ta , Cr2Zr and Cr2Hf ) at room temperature, because it has high ultrasonic velocity and low ultrasonic attenuation.

scholarly journals Computations of Ultrasonic Parameters in Alloys

2011 ◽  
Vol 2011 ◽  
pp. 1-7
Author(s):  
Pramod Kumar Yadawa
Keyword(s):  
Sound Velocity ◽  
Elastic Constants ◽  
Room Temperature ◽  
Ultrasonic Attenuation ◽  
Physical Parameters ◽  
Third Order ◽  
Ultrasonic Properties ◽  
Third Order Elastic Constants ◽  
Ultrasonic Parameters

The ultrasonic properties like ultrasonic attenuation, sound velocity in the hexagonal alloys have been studied along unique axis at room temperature. The second- and third-order elastic constants (SOEC & TOEC) have been calculated for these alloys using Lennard-Jones potential. The velocities and have minima and maxima, respectively, at 45° with unique axis of the crystal, while increases with the angle from unique axis. The inconsistent behaviour of angle-dependent velocities is associated to the action of second-order elastic constants. Debye average sound velocities of these alloys are increasing with the angle and has maximum at 55° with unique axis at room temperature. Hence, when a sound wave travels at 55° with unique axis of these alloys, then the average sound velocity is found to be maximum. The mechanical and ultrasonic properties of these alloys will be better than pure Zr and Sn due to their high SOEC and ultrasonic velocity and low ultrasonic attenuation. The comparison of calculated ultrasonic parameters with available theoretical/experimental physical parameters gives information about classification of these alloys.

Induction of a room temperature ferroelectric SmC* phase in binary mixtures with moderate spontaneous polarization and sub-millisecond switching time

RSC Advances ◽  
2016 ◽  
Vol 6 (87) ◽  
pp. 84369-84378 ◽  
Author(s):  
A. Debnath ◽  
P. K. Mandal ◽  
D. Węglowska ◽  
R. Dąbrowski
Keyword(s):  
Binary Mixture ◽  
Binary Mixtures ◽  
Spontaneous Polarization ◽  
Room Temperature ◽  
Switching Time

Induction of room temperature SmC* phase in binary mixture.

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