Chemistry and Technology of Metal Powders.
Final rept. 1 Jun 74-14 Jun 77,
NORTH DAKOTA STATE UNIV FARGO DEPT OF CHEMISTRY
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A new process for the preparation of finely divided metal powders has been used in preliminary studies on a number of metal powders. The metals that were examined were found to exhibit far superior reactivity to that described in the literature for these metals or to that which found in the laboratories using the standard metals and techniques. The basic process involves the reduction of a metal salt in an ethereal or hydrocarbon solvent under an argon atmosphere. The reductions in some cases are very exothermic and generally are complete within a few hours. The reduction produces fine black powders of the metal in question. The properties of the black metal powders are, in many cases, highly dependent on the solvent used, the reducing agent, the anion of the metal salt being reduced, the ration of reducing agent such as potassium to the metal salt being reduced, and the temperature at which the reduction is being carried out. The bulk of the effort was devoted to a study to determine if highly reactive transition metal powders could be prepared via this reduction procedure. The metals which were studied were nickel, palladium, cobalt and platinum. Author
- Inorganic Chemistry
- Metallurgy and Metallography