Tuning the particle size and morphology of high energetic material nanocrystals

• Published in: Defence Technology（防务技术） 2015-12, Vol.11 (4), p.382-389
• Main Authors: Kumar, Raj, Siril, Prem Felix, Soni, Pramod
• Format: Article
• Language: English
• Subjects: High energetic materials; Morphology control; Nano-HMX; Nano-RDX; Nanorods; Spherical nanoparticles; 场发射扫描电子显微镜; 差示扫描量热法; 平均粒径; 形貌; 纳米晶体; 纳米粒子; 纳米颗粒; 高含能材料
• ISSN: 2214-9147; 2214-9147
• DOI: 10.1016/j.dt.2015.07.002

Morphology controlled synthesis of nanoparticles of powerful high energetic compounds （HECs） such as 1,3,5-trinitro-1,3,5-triazinane （RDX） and 1,3,5,7-tetranitro-1,3,5,7-tetrazocane （HMX） were achieved by a simple solvent-antisolvent interaction （SAI） method at 70 ℃. The effects of different solvents on particle size and morphology of the prepared nano-HECs were studied systematically. Particle size and morphology of the nano-HECs was characterized using field emission scanning electron microscopy （FE-SEM） imaging. X-ray diffraction （XRD） and Fourier transform infrared （FTIR） spectroscopy studies revealed that RDX and HMX were precipitated in their most stable poly- morphic forms, i.e. α and β, respectively. Thermogravimetric analysis coupled with differential scanning calorimetry （TGA-DSC） studies showed that the thermal response of the nanoparticles was similar to the respective raw-HECs. HEC nanoparticles with spherical and rod shaped morphology were observed under different solvent conditions. The mean particle size also varied considerably with the use of different solvents.