Impact of Shock Waves on Molecular and Structural Response of Potassium Dihydrogen Phosphate Crystal

被引：38
|
作者：
Sivakumar, A. [1 ]
Dhas, S. Sahaya Jude [2 ]
Balachandar, S. [3 ]
Dhas, S. A. Martin Britto [1 ]
机构：
[1] Sacred Heart Coll, Abraham Panampara Res Ctr, Dept Phys, Tirupattur 635601, Tamilnadu, India
[2] Loyola Coll, Dept Phys, Chennai 600034, Tamilnadu, India
[3] AKSH Optifiber Private Ltd, Dept Res & Dev, Bhiwadi 301019, Rajasthan, India
来源：
JOURNAL OF ELECTRONIC MATERIALS | 2019年 / 48卷 / 12期
关键词：
Shock waves; KDP crystal; microdistortions; orientation defects; HIGH-PRESSURE; HYDROSTATIC-PRESSURE; OPTICAL-PROPERTIES; PHASE-TRANSITION; SINGLE-CRYSTAL; GROWTH; DIFFRACTION; AMMONIUM; KH2PO4; ADP;
D O I：
10.1007/s11664-019-07605-9
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The physical properties of potassium dihydrogen phosphate powder samples have been investigated before and after shock loading. The optical transmittance and bandgap energy were derived by ultraviolet (UV) diffuse reflectance spectroscopy (DRS). The molecular and structural stability of the test crystal after shock loading were confirmed. Test crystals were exposed to 50 and 100 controlled shock pulses with corresponding Mach number of 2.2 then probed by Fourier-transform infrared (FTIR) spectroscopy and powder x-ray diffraction analysis. FTIR spectra showed no considerable changes in the molecular bands of the crystal after shock loading. XRD analysis illustrated the appearance of a few secondary peaks after 50 and 100 shock pulses but retaining the original crystal phase, which may be due to orientation defects and microdistortions of the crystal caused by the impact of shock waves.
引用
收藏
页码：7868 / 7873
页数：6
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