Thermal transport in graphene–HMX composites with grafted interface

Enhancing the interfacial thermal conductance of Si/PVDF by strengthening atomic couplings

“…In terms of the interface, the match/mismatch of two materials significantly influences its ITC. 13,17 When one side is an amorphous structure, the range of phonon modes is much 27 Cu/TiC/diamond, 28 Cr/Cu/Ni, 29 β-Ga 2 O 3 /ZrO 2 /sapphire, 30 diamond/graphene/copper, 31 graphene/organic, 32 graphene/epoxy, 33 graphene/HMX, 34 Au/Qz, 35 graphene/silicone, 36 Si/CNT 37 and Cu/SiO 2 broader than that in a crystal. This may lead to an abundance of matching phonon modes across the interface, which facilitates efficient interfacial thermal conduction.…”

“…24 Currently, there are various approaches available to enhance ITC, including the utilization of interface defects, [25][26][27] interlayers [28][29][30][31] and surface chemical treatment. [32][33][34][35][36][37][38] While the utilization of interface defects does not require the introduction of external materials, more controllable and accurate methods for defect introduction still need to be explored. 39 The introduction of interlayers offers a simpler approach.…”

“…(b) TTC of composite structures: for Si/P-PVDF, Si/U-PVDF, and Si/A-PVDF composite structures, through modification of the Si surface TTC of composite structures can be increased by 266%, 83%, and 76%. (c) Increased ratio of ITC versus those of other modulation methods (graphene/h-BN,25 BP/MoS 2 , 26 graphene/MoS 2 ,27 Cu/TiC/diamond,28 Cr/Cu/Ni,29 β-Ga 2 O 3 /ZrO 2 /sapphire,30 diamond/graphene/copper, 31 graphene/organic, 32 graphene/epoxy, 33 graphene/HMX,34 Au/Qz,35 graphene/silicone,36 Si/CNT 37 and Cu/SiO 2…”

Gas-Phase Synthesis of Perfluoroalkyl-Functionalized Graphene and Its Desensitization Effect on 1,3,5,7-Tetranitro-1,3,5,7-Tetraazacyclooctane

“…Compared to raw HMX, both E K1 and E K2 values are reduced for G/HMX and GO/HMX composites, supporting previous research on the catalytic effect of G and GO on the thermal decomposition of energetic materials. 12,13 It should be noted that if the apparent activation energy obtained by the same method differs by less than 5%, it may be due to errors. Therefore, only the cases where the change in E a is greater than 5% are discussed here.…”

“…Recent studies have shown that the sensitivity of a single energetic compound is largely influenced by its crystal size, morphology, purity, defects, and the microstructure of intercrystalline voids. − The corresponding desensitizing techniques were adopted to decrease the sensitivity of HMX. Among which, surface coating with an energetic desensitizer, viton, polymer, − and graphene and its derivatives − were well investigated and efficient desensitizing effect was illustrated. Especially, graphene (G), graphene oxide (GO), and amino-functionalized graphene oxide (AG)-modified HMXs exhibit enhanced thermal stability and lowered mechanical sensitivity.…”