Effect of shock waves on thermophysical properties of ADP and KDP crystals. (April 2019)

• Record Type: Journal Article
• Authors: Sivakumar, A.; Suresh, S.; Balachandar, S.; Thirupathy, J.; Kalyana Sundar, J.; Martin Britto Dhas, S.A.
• Is Part Of: Optics & laser technology. Volume 111(2019)
• Page Start: 284
• Page End: 289
• Publication Date: 2019-04
• Subjects: Shock tube -- Shock waves -- Thermophysical properties -- Photoacoustic spectrometer; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2018.10.001
• Languages: English
• ISSNs: 0030-3992

Abstract

Graphical abstract: Highlights: Enhancement of thermophysical properties of ADP crystal is demonstrated. It is achieved by loading shock waves on the crystal. It enhances the applicability of a crystal in high power laser devices. Shock waves does not alter the thermophysical properties of KDP crystal. KDP is better crystal to be used in fast moving and vibrating devices. Abstract: Ammonium Dihydrogen Phosphate (ADP) and Potassium Dihydrogen Phosphate (KDP) crystals are grown by slow evaporation method at ambient temperature. The said crystals are utilized as a test specimen and subjected to one-dimensional 'loading of shock waves' generated by rupturing a paper diaphragm with Mach number of 1.9 using supersonic low energy table-top shock tube. Thermal diffusivity of crystal is measured using Photoacoustic spectrometer (PAS) for the normal and shock loaded crystals, thermal conductivity and thermal effusivity are computed for the given volumetric specific heat capacity of the crystals. XRD characterization studies reveals that KDP crystal has better immunity to shock wave than ADP crystal.