Journal of Pure and Applied Ultrasonics

Vyoma Bhalla ¹, Devraj Singh ², S. K. Jain ³

Affiliations
1 Amity Institute of Applied Sciences, Amity University, Noida-201303, IN
2 Department of Applied Physics, Amity School of Engineering and Technology, Bijwasan, New Delhi-110061, IN
3 Department of Applied Sciences, The NorthCap University, Sector 23A, Gurgaon-122017, IN

Abstract

The ultrasonic properties of terbium monophosphide have been investigated with its mechanical properties along <100>, <110> and <111> orientations. The second and third order elastic constants have also been calculated at 0K - 300K temperatures range using Coulomb and Born-Mayer potential. For finding the stability and ionic nature of TbP, some of the mechanical parameters have also been evaluated at room temperature. Additionally, thermal conductivity is also calculated using Slack's approach. Finally, ultrasonic attenuation in TbP is calculated. Obtained results of the present investigation are discussed in correlation with available results of previous findings.

Keywords

Terbium Monophosphide, Elastic Properties, Thermal Conductivity, Ultrasonic Properties.

Full Text

   

Pranati Purohit ¹, S. K. Jain ¹

Affiliations
1 Department of Applied Sciences, The Northcap University, Huda, Sector 23A Gurgaon-122017, IN

Abstract

Determination of shear wave attenuation coefficient in rubbers has significance in many applications, for example in non-destructive evaluation of bonding of rubber linings, acoustic absorbing/transparent coatings in air and underwater acoustic devices, shear wave attenuation tissue characterization, etc. Generally an elaborate and expensive acoustic test setup is used for measurement of acoustic properties of rubber and other acoustic materials. In the present work, a piezoelectric resonator method based on bandwidth of a radial mode piezoelectric disc is proposed. Piezoelectric resonators like quartz controlled microbalance (QCM) are well-known for their use in thin film thickness monitor in vacuum coating units based on based on resonance of quartz element. Likewise, quartz oscillator has also been deployed for viscosity determination. The present work describes a radial mode piezoelectric resonator coupled with rubber pads, wherein the radial oscillations excite shear waves into the rubber. The bandwidth of the resonator is related to the penetration depth (attenuation coefficient) of the shear waves. Bandwidth based on data from literature on decay time constant of a damped piezoelectric resonator has been used to compute the shear wave attenuation coefficient in rubbers. A good degree of agreement is observed between the calculated attenuation coefficient and the experimental value from the literature. The proposed method would provide a simple solution to measure shear wave attenuation coefficient in rubbers or other visco-elastic media at discrete frequencies.

Keywords

Piezoelectric Resonator, Radial Mode, Shear Wave Attenuation.

Full Text

   

Mahavir Singh ¹, S. K. Jain ¹

Affiliations
1 CSIR-NPL, New Delhi, IN

Abstract

* 1-5 July, 2012, Lviv University, Ukraine, 13^th Meeting of European Society of Sonochemistry http://www.ess13.org

* 02-06 July 2012, Edinburgh, UK, 11^th European Congress on Underwater Acoustics http://www.acua2012.com

* 08-12 July 2012, Vilnius, Lithuania, 18th International Congress on Sound and Vibration (ICSV19) http://www.icsv19.org

* 11-13 September, 2012, Daventry, U.K., 51^st Annual Conference of British Institute of NDT http://www.bindt.org

Full Text

   

Mahavir Singh ¹, S. K. Jain ¹

Affiliations
1 CSIR-NPL, New Delhi, IN

Abstract

* 16-20 April 2012, Durban, South Africa, 18^th World Conference on Non-destructive Testing http://www.wcnpl2012.org

* 1-5 July, 2012, Lviv University, Ukraine, 13^th Meeting of European Society of Sonochemistry http://www.ess13.org

* 02-06 July 2012, Edinburgh, UK, 11th European Congress on Underwater Acoustics http://www.acua2012.com

* 08-12 July 2012, Vilnius, Lithuania, 18^th International Congress on Sound and Vibration (ICSV19) http://www.icsv19.org.

Full Text

   

S. K. Jain

Abstract

Dear Colleagues,

It is my pleasure to greet you on the eve of completion of 40 years of publication of Journal of Pure and Applied Ultrasonics. The journal has been regular since its inception in 1979 and has continuously been gaining popularity among international ultrasonic scientific community. I congratulate all the editorial personnel and publication committee personnel who were associated with the journal over different periods and have made immense contribution in bringing the journal to this status.

Full Text

   

S. K. Jain

Abstract

The Journal of Pure and Applied Ultrasonics has been publishing research papers, review articles, thesis summary, etc.on physical ultrasonics besides the other subjects such as non-destructive NDE, underwater acoustics, instrumentation, transducers, etc.. The studies on physical ultrasonicsinclude thermo-acoustic parameters of (i) organic liquid mixtures and inorganic electrolytes, (ii) mechanical and thermal properties of single crystals of various elements and their inter-metallic compositions based on various series of periodic table. It is amazing to see how the subject has developed over the years and authors are looking various possibilities where this research can lead to potential applications in determination of properties such as effective blending of polymers, polymer chain lengths, ionicdissociation, thermal and refractory properties of industry relevant solids.

Full Text

   

S. K. Jain

Abstract

The Journal of Pure and Applied Ultrasonics has been publishing research papers, review articles, thesis summary, etc.on physical ultrasonics besides the other subjects such as non-destructive NDE, underwater acoustics, instrumentation, transducers, etc.. The studies on physical ultrasonicsinclude thermo-acoustic parameters of (i) organic liquid mixtures and inorganic electrolytes, (ii) mechanical and thermal properties of single crystals of various elements and their inter-metallic compositions based on various series of periodic table. It is amazing to see how the subject has developed over the years and authors are looking various possibilities where this research can lead to potential applications in determination of properties such as effective blending of polymers, polymer chain lengths, ionicdissociation, thermal and refractory properties of industry relevant solids.

Full Text

   

S. K. Jain

Abstract

A Need for Review of Published Research on Ultrasonic Studies of Solids and Liquids

Full Text

   

S. K. Jain

Abstract

No Abstract.

Full Text

   

S. K. Jain

Abstract

No Abstract.

Keywords

No Keywords.

Full Text

   

S. K. Jain ¹

Affiliations
1 Chief Editor, Journal of Pure and Applied Ultrasonics, IN

Abstract

No Abstract.

Keywords

No keywords

Full Text

   

S. K. Jain ¹

Affiliations
1 Chief Editor, Journal of Pure and Applied Ultrasonics, IN

Abstract

No Abstract.

Keywords

No keywords

Full Text

   

S. K. Jain ¹

Affiliations
1 Chief Editor., IN

Abstract

No Abstract.

Full Text

   

S. K. Jain ¹

Affiliations
1 Chief Editor.

Abstract

No Abstract.

Full Text