Methods of passivating fuel materials for use in solid propellants, and related solid fuels, ramjet engines, and methods

Abstract

A method of forming a solid fuel. The method comprises passivating a fuel material comprising a metalloid. Passivating the fuel material comprises combining the fuel material, a solvent, and an isocyanate passivation agent to form a solution, and passivating exposed surfaces of the fuel material with the isocyanate passivation agent to form a passivated fuel material. The method further comprises combining the passivated fuel material with at least one binder to form a mixture, and combining a curing agent with the mixture to form a solid fuel. Related solid fuels, solid fuel ramjet engines, and methods of passivating boron and forming a solid fuel ramjet engine are also disclosed.

Dependencies are inferred from the claim text.