Effect of Shock Waves on Structural, Thermophysical and Dielectric Properties of Glycine Phosphate (GPI) Crystal

A Comparative Investigation on the Structural Stability of the Single and Poly‐Crystalline Sodium Nitrate at Dynamic Shock Wave Loaded Conditions

“…In addition to that, considering a few technologically important crystalline materials such as ammonium dihydrogen phosphate, [ 47 ] potassium dihydrogen phosphate, [ 30 ] and glycine phosphate, [ 31 ] the respective poly‐crystalline samples undergo notable changes observed in terms of the full width at half maximum of the diffraction peaks, peak intensity, and peak shift. [ 30,31 ] More remarkably, in the case of glycine phosphite and potassium dihydrogen phosphate, a couple of diffraction peaks disappear at 50 shock pulses exposed conditions whereas reappear at 100 shock pulses exposed conditions. [ 30 ] Compared to those aforementioned poly‐crystalline samples, [ 30,31,47 ] NaNO 3 samples have high shock resistance.…”

“…[ 30,31 ] More remarkably, in the case of glycine phosphite and potassium dihydrogen phosphate, a couple of diffraction peaks disappear at 50 shock pulses exposed conditions whereas reappear at 100 shock pulses exposed conditions. [ 30 ] Compared to those aforementioned poly‐crystalline samples, [ 30,31,47 ] NaNO 3 samples have high shock resistance. Note that there are a number of material factors expected such as bond type, bond length, bond energy, structural geometry, the complexity of the materials, density, grain size, crystallinity, equilibrium state, number of availabile phases of the particular material and oxygen vacancies that contribute toward the material stability and polymorphic phase transformation under shock wave loaded conditions.…”

“…[ 28,29 ] But, in the case of the poly‐crystalline state of potassium dihydrogen phosphate, a couple of diffraction peaks disappear at 50 shock pulses exposed conditions and reappear at 100 shock pulses exposed conditions. [ 30 ] Glycine Phosphite single [ 31 ] and polycrystalline forms [ 32 ] exhibit similar results as that of potassium dihydrogen phosphate. Hence based on the observed available literature reports, the impact of shock waves on the test samples is highly dependent on the nature of the materials as well as the initial state of the test specimens.…”

High Shock Resistance of Polycrystalline Sodium Sulfate Crystals at Dynamic Shocked Conditions

“…Moreover, the observed results broadly depend on the starting materials which are either in single crystalline or in polycrystalline states. [11,[16][17][18][19][20] For example, the reports on starting materials of bulk-single-crystalline samples such as sapphire, [16] potassium dihydrogen phosphate, [17] glycine phosphite, [18] pentaerythritol tetranitrate (PETN), [19] potassium sulfate, [20] magnesium sulfate heptahydrate, [21] and cyclotrimethylene trinitramine (RDX); [22] the bulk-polycrystalline sample such as ammonium dihydrogen phosphate, [23] potassium dihydrogen phosphate, [17] glycine phosphite, [24] potassium sulfate, [25] and magnesium bromide; [26] and nanocrystalline materials such as titanium oxide, [27] zirconium oxide, [28] cerium oxide, and cobalt oxide reflect the abovementioned features convincingly. [29,30] Based on the previous reports, the outcomes of the shock wave impact analyses also reveal that the mode of changes is dependent on the nature of the starting materials such as single-crystalline, bulk-polycrystalline, and nanosized polycrystalline states as well as the value of transient pressure of the shock waves and the number of shock pulses.…”

Comparative Analysis of Crystallographic Phase Stability of Single and Poly-Crystalline Lead Nitrate at Dynamic Shocked Conditions

“…As for as it is known, the outcomes of dynamic shock wave impact of structural properties on bulk single crystals and poly-crystalline materials (micro and nano-crystalline materials) have been reported which have a lot of interesting behaviors. The structural stability of single crystalline materials such as cyclotrimethylene trinitramine (RDX) [5], sapphire (α = Al 2 O 3 ) [6], pentaerythritol Tetranitrate [7], copper (Cu) [8] cadmium sul de (CdS) [9], potassium sulfate (K 2 SO 4 ) [10], sodium sulfate (Na 2 SO 4 ) [11], ammonium dihydrogen phosphate (ADP) [12], potassium dihydrogen phosphate (KDP) [13], glycine phosphite (GPI) [14] copper sulfate pentahydrate (CuSO 4 .5H 2 O) [15], and lead nitrate (PbNO 3 ) [16] have been investigated after exposing them to shock waves. Among the listed crystals, some of the crystals undergo signi cant crystallographic phase transitions such as potassium sulfate [10] and sodium sulfate [11] at shocked conditions.…”