Experiment research method of the aluminum in the composite propellant

For the research of the dynamic combustion process at the surface and out of the burning surface of aluminum in the AP/HTPB propellant, the optical imaging methods with the long focal distance microscope, SLR camera and high-speed camera were adopted. The movement and combustion of aluminum droplet from propellant burning surface were obtained with normal temperature and pressure experiment. In the 0. 3 MPa closed experimental device, a single aluminum droplet combustion was photographed with long focal distance microscope and high-speed camera, and its diameter and the flow rate was calculated, which proves the feasibility of the method and lays the foundation for further experimental research at high pressure.