Porous Silicon-based Preparation Of Energetic Materials And Explosive Performance Research

We will introduce a porous silicon-based composite energetic materials and do some research on the preparation of this material and its explosive performance. Porous silicon-based composite energetic materials have the following advantages: 1. energy density is higher; 2. with a high activation threshold of energy release. Therefore, porous silicon-based composite energetic materials is paid closed attention by research institutions in countries all around the world , but until today, the performance of its research is not comprehensive and mature enough. With the situation at home and abroad, this paper take P-type and N-type silicon film as the object of study, make porous silicon by electrochemical anodic oxidation, and prepare porous silicon-based composite energetic materials with the oxidant of high-sodium chlorate ,and study the influence by preparation conditions and influence of various factors on the explosive performance.1. study the influence of blast performance of compounded composite energetic materials with different components and different concentrations of filled oxidant The results show that the organic solvent with key filled component is more suitable for materials synthesis2. study the performance of porous silicon composite materials using different methods and under different filling conditions ,save up the finished composite materials, analysis the influence of blast performance of different storage methods .The study found that time after time subsection filling method of 4 to 6 times can greatly improve the energy density of material3. using SEM figure the structure of the prepared porous silicon under different current conditions, P-type porous silicon thickness up to 93um, N-type porous silicon thickness up to 108um. Porous silicon structures is uniform and multilayer structure can be seen on profile section.4. study the threshold of activation of the energy release of materials and found that the composite energetic materials with a high activation threshold, the activation temperature of 733K or more.