Shock Compression of Porous Powder Compacts

In most cases of interest, shock-induced chemical reactions in solids are studied in mixtures of powders of the potential reactants. In the earlier description of conceptual models it was emphasized that the pores provide space in which the potential reactants can be more intimately mixed in order 

150 Chapter 6. Shock-Compression Processes in Solid State Chemistry 

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In addition to these micromechanical considerations, low pressure shock compression of porous powder compacts has distinctive features not encountered in low pressure solid density samples. Basically, the sample is dominated by the pores, and the wavespeed at pressures less than those required to crush the sample to solid density is unusually low and is little dependent on the properties of the solid. 

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