硼粉表面化学镀镍技术及其燃烧特性研究

Boron ( B ) powder has a very high energy density and is often used as an additive in solid propellants. However, its high melting point and the presence of an oxide layer on the surface lead to ignition difficulties and incomplete combustion. This problem can be effectively improved by adding other metal particles. Therefore, B-xwt % Ni was prepared by adding nickel ( Ni ) nanoparticles to B powder by electroless plating. The effects of different Ni contents on the combustion characteristics of B powder were investigated, the morphology of the composites was characterized, and the deposition process and mechanism of nano-nickel were analyzed. The experimental results show that the addition of an appropriate amount of Ni nanoparticles to B powder can significantly reduce the initial oxidation temperature and effectively increase the heat release. These results can provide a reference for the application of Ni nanoparticles in boron-based solid propellants.