Study of nano-nitramine explosives: preparation,sensitivity and application |
| |
Institution: | National Special Superfine Powder Engineering Research Center of China, Nanjing University of Science and Technology, Nanjing 210094, China;Nanjing University of Science and Technology, China |
| |
Abstract: | Nano-nitramine explosives (RDX, HMX, CL-20) are produced on a bi-directional grinding mill. The scanning electron microscope (SEM) observations show that the prepared particles are semi-spherical, and the narrow size distributions are characterized using the laser particle size analyzer. Compared with the micron-sized samples, the nano-products show obvious decrease in friction and impact sensitivities. In the case of shock sensitivities, nano-products have lower values by 59.9% (RDX), 56.4% (HMX), and 58.1% (CL-20), respectively. When nano-RDX and nano-HMX are used in plastic bonded explosives (PBX) as alternative materials of micron-sized particles, their shock sensitivities are significantly decreased by 24.5% (RDX) and 22.9% (HMX), and their detonation velocities are increased by about 1.7%. Therefore, it is expected to promote the application of nano-nitramine explosives in PBXs and composite modified double-based propellants (CMDBs) so that some of their properties would be improved. |
| |
Keywords: | Nano-nitramine explosive PBX Sensitivity Detonation velocity Application |
本文献已被 ScienceDirect 等数据库收录! |
|