This studymakes an attempt to demonstrate a technique to embed the catalyst on ammoniumperchlorate surface. In the present study, various techniques like differential scanning calorimeter, thermogravimetric analysis, scanning electron microscope, and x-ray computed tomography scan analysis as well as others were used to establish the effectiveness of this technique.Micron-sized iron oxide was used in this study for embedding the catalyst on ammonium perchlorate. Burn rates of pellets containing different fractions of iron oxide from various sources were measured to establish an optimumfraction for highest burn rate of ammoniumperchlorate pellets achievable with iron oxide. These burn ratesweremeasured using aCrawford bomb, and a fraction of1%iron oxide (Sigma-Aldrich)was highestamong them for pellets. The burn rate of the ammoniumperchlorate pellet with 1%iron oxide at 70 bar pressure recordedwas 13.33 mm/s. This fraction of iron oxide was also used to study the effect of embedding the catalyst on ammonium perchlorate surface when used in nonaluminized composite solid propellants. It is observed that catalyst-embedded ammonium perchlorate yields a higher burn rate as compared to the mechanically mixed catalyst. ©2017 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.