Surface Interactions of Transonic Shock Waves with Graphene-Like Nanoribbons

Abstract

Graphene-like nanoribbons (GLNRs) were fabricated (length—20 μm; width—2 μm) and subjected to blast-like pulsed pressure >1.5 GPa (pulse speed ≈1 Mach, impulse duration, ≈µs) to examine the amount of absorption. GLNRs prepared by the chemical vapor deposition technique via controlled biomass combustion were subjected to investigate the structure–property characteristics using microspectroscopic techniques. Following this, GLNRs were employed to high strain rate (HSR) studies with the help of the technique known as split Hopkinson pressure bar (SHPB) to evaluate numerous dynamic parameters. The parameters were extracted from variations in the stress and strain rates. Their analysis provided insight into the damping response of blast energy within GLNRs. By and large, the impact generated modified the microstructure, exhibiting modifications in the number of layers, conjugated loops, and dynamic disorder. Signal processing analysis carried out for incident and transmitted impulse pressure revealed an interaction mechanism of shock wave with GLNR. Details are presented.

Assessment of sustainability on structure-optical properties of prismatic face ADP crystal at dynamic shocked conditions

“…In addition to that, the title crystal belongs to the hydrogen bond family of crystals and the hydrogen bonds have high susceptible nature at hightemperature and high-pressure conditions [36,37]. As per the crystal structure of the prismatic face ADP crystal, N-H•••O is connected to (NH4) 4 (PO4) 3 and O-H•••O lies between (PO4) 3 groups and the corresponding crystal packing along with (200) plane is presented in Fig. 2.…”

“…Much of these experimental works have come about because, in recent times, there have been witnessed a few groundbreaking results that emerge out from research groups owing to their incredible commitment. Space environmental factors can possibly affect the characteristic nature of space materials when they encounter the space condition such as gamma rays, low temperature, shock waves and cosmic rays, etc [1][2][3][4]. Optical devices are used in space mission for electronic types of equipment and laser operating systems to determine the efficiency of lifetime of satellites and data communication [5,6].…”

Sugarcane waste based synthesized graphene like nanocarbon (GNC) for shock absorption application

“…Graphene is a transparent 2D allotrope of carbon with high thermal conductivity (1500-2500 W mK −1 ), electron mobility (100× greater than silicon), impressive mechanical strength (>130 GPa), large surface area (2630 m 2 gm −1 ), stiffness, toughness, and stretchability [1][2][3][4][5]. This unique property of graphene makes it a suitable candidate for supercapacitor, energy storage, gas sensing, shock absorption, self-healing composites, field effect transistors, conducting ink, drug delivery, wearable electronic device applications and many more [6][7][8][9][10][11][12][13][14]. Graphene can be synthesised by various methods, like micromechanical cleavage technique, liquid phase exfoliation, route chemical method, chemical vapour deposition, unzipping of CNTs, oxidative methods, colloidal suspension, etc [7,8,15].…”

“…Kumar et al reported the synthesis of polymer-based graphene for EMI shielding applications using the RT-CVD technique from charcoal powder, Bisphenol A-(epichlorhydrin) epoxy resin, acetylene, KNO 3 , and sulphur powder [31]. Chinke et al have reported fabrication of graphene like nanoribbons (GNRs) by combustion of cotton using the RT-CVD technique and also demonstrated effective use of the same for shock absorption application [6]. The above studies motivated us to use biomass and CVD techniques for the synthesis of graphene like nanocarbon, which may have potential applications as discussed earlier.…”

“…In the current 21st century, terrorist attacks, man-made hazards, disasters, and war-like situations are major threats to society. Hence, it is necessary to develop new materials which can be used for mitigating these waves and for the development of blast resistant blocks and shock absorbing shields useful in defence as well as space applications [5][6][7].…”