INVESTIGATION ON SHOCK-INDUCED REACTION CHARACTERISTICS OF Ti/PTFE ENERGETIC MATERIAL

Abstract

In recent years, titanium/fluoropolymer composites have become a new type of energetic structural material, which can release energy under high-speed impact. In this study ， Ti/PTFE energetic material was fabricated: mixing by ball milling, molding under 20MPa pressure, sintering at high temperature, and analyzing the micro-morphology of Ti/PTFE energetic material under SEM. And through SHPB impact compression test, the mechanical properties of Ti/PTFE energetic materials under a high strain rate (1*103- 3*103) at room temperature was analyzed. Furthermore, the impact-induced reactivity of Ti/PTFE energetic materials was investigated through a quasi-sealed chamber test. It shows that the exothermic chemical reaction is more intense with the increase of impact velocity.