Title |
Preparation and Characterization of Nano-structured HMX |
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Author |
Chonghua PEI1,*, Zhaoqian Li2, Qingping LUO1, Guangcheng YANG3, Fude NIE3, Hui HUANG3 |
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Institute
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1. School of Material Science and Engineering, Southwest University of Science and Technology,
Mianyang 621010, P.R.China; 2. Institute of Science and Technology, Hainan University, Haikou 570228, P.R.China; 3. Institute of Chemical Materials, CAEP, Mianyang 621900, P.R.China. |
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Keywords: |
nano-structured material; HMX |
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| Abstract | Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine(HMX) is a high explosive. Nano-structured HMX is prepared by a new process. The appearance of the sample is observed by scanning electron microscopy (SEM), it is found that the structure of HMX particles is necklace-like. The results are suggested that average content of the HMX is 88%, measured by high performance liquid chromatography(HPLC). Thermogravimetry and Differential Scanning Calorimetric (TG-DSC) is used to determine the thermal property of the sample and the results show that the decomposition of HMX takes place at the temperature of 276.1℃, approximately 6℃ shift toward low temperature region compared with raw micron HMX. X-ray diffraction (XRD) result reveals that the diffraction peaks of nano-structured HMX are weakened compared with those of micron HMX, and the corrected average crystallite size is 40~60 nm based on the Scherrer formula. |
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