Impact of shock waves on vibrational and structural properties of glycine phosphite

Abstract

This article carries the findings of the effect of shock waves on glycine phosphite (GPI) powder samples which have been investigated under pre and post shock loaded conditions with the shock pulses of 50 and 100 at the Mach number of 2.2. Molecular structural stability and crystal structural stabilities have been established by Fourier transform infrared spectroscopy (FTIR) and powder X-ray diffractometry (XRD). From XRD studies, it has been observed that there is change in crystalline peak intensity, peak distortion and formation of new peaks in shock wave loaded samples whereas no alteration in the original crystal system. There is no change observed in FTIR profiles at shock loaded conditions. The obtained crystallographic studies prove with substantial evidence that the crystal has molecular stability and stable crystallographic structure against the impact of applied shock waves. On the other hand, many of the crystalline planes have disappeared and re-appeared with respect to number of shock waves but maintaining the same crystallographic phase. From the shock wave impact study; the authors suggest that GPI crystal, particularly (21-1) orientation, is suitable for devices used in harsh environment and high power laser application due to the relative stability of the crystalline properties.