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

被引:15
作者
Sivakumar, A. [1 ]
Dhas, S. Sahaya Jude [2 ]
Dhas, S. A. Martin Britto [1 ]
机构
[1] Sacred Heart Coll, Abdul Kalam Res Ctr, Dept Phys, Vellore 635601, Tamil Nadu, India
[2] Kings Engn Coll, Dept Phys, Chennai 602117, Tamil Nadu, India
关键词
Shock wave; GPI crystal; Molecular stability; Structural stability; Microdistortions; PHASE-TRANSITION; UNIDIRECTIONAL GROWTH; HIGH-PRESSURE; CRYSTAL; STATE;
D O I
10.1016/j.solidstatesciences.2020.106452
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
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.
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页数:6
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