Abstract
Stoichiometric mixtures of Ga and As powders were explosively shocked to create GaAs. The reactants were loaded into stainless steel capsules, which were, in turn, fitted into Sawaoka fixtures. The sample assemblies were struck with flyer plates traveling at 1.3 to 2.5 Km/s. The shocked samples were analyzed by specific gravity measurements, X-ray diffraction (XRD), optical microscopy, and scanning electron microscopy (SEM). The density of the poly crystalline product ranged from 79 to 95 pct of theoretical. The XRD patterns showed only the presence of GaAs; however, small amounts of gallium-rich and arsenic-rich regions were found by energy-dispersive X-ray spectroscopy (EDS) analysis.
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