Combustion Synthesis of Advanced Materialsby J. J. Moore, Colorado Sch of Mines, Golden, United States,
H. J. Feng, Colorado Sch of Mines, Golden, United States,
N. Perkins, Colorado Sch of Mines, Golden, United States,
D. W. Readey, Colorado Sch of Mines, Golden, United States,
Abstract: The combustion synthesis of ceramic-metal composites using an in-situ liquid infiltration technique is described. The effect of varying the reactants and their stoichiometry to provide a range of reactant and product species i.e. solids, liquids and gases, with varying physical properties eg. thermal conductivity, on the microstructure and morphology of synthesized products is also described. Alternatively, conducting the combustion synthesis reaction in a reactive gas environment is also discussed, in which advantages can be gained from the synergistic effects of combustion synthesis and vapor phase transport. In each case, the effect of the presence or absence of gravity (density) driven fluid flow and vapor transport is discussed as is the potential for producing new and perhaps unique materials by conducting these SHS reactions under microgravity conditions.
Subject Headings: Composite materials | Combustion | Material properties | Field tests | Infiltration | Microstructure | Fluid flow | Gravity forces
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