The reactions of two nano-thermites, aluminum (Al) with copper oxide (CuO) and Al with nickel oxide (NiO) are studied. These oxidizers were selected based on their predicted properties: similar flame temperatures but significantly opposing gas generation. Thermal equilibrium calculations predict that Al+CuO will have a high gas output and the Al+NiO will produce little gas. Flame propagation rates and peak pressure measurements were taken for both composites at various equivalence ratios using an instrumented flame tube. Results show that the Al+CuO had approximately twice the propagation...