Transformation of Combustion Nanocatalysts inside Solid Rocket Motor under Various Pressures.

ABSTRACT: In this paper, the dependences of the morphology, particle sizes, and compositions of the condensed combustion products (CCP) of modified double-base propellants (1,3,5-trimethylenetrinitramine (RDX) as oxidizer) on the chamber pressure (<35 MPa) and nickel inclusion have been evaluated under a practical rocket motor operation. It has been shown that higher pressure results in smaller average particle sizes of the CCPs. The CCPs of Ni-containing propellants have more diverse morphologies, including spherical particles, large layered structures, and small flakes coated on large particles depending on the pressure. The specific surface area (SSA) of CCPs is in the range of 2.49 to 3.24 m² g-1 for propellants without nickel are less dependent on the pressure, whereas it is 1.22 to 3.81 Ni-bas

SUBMITTER: Li JQ 

PROVIDER: S-EPMC6473950 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature