Preparation of Ultrafine Mixed Metallic-Oxide Powders.
OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C
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The patent describes a method for the preparation of ultrafine mixed metallic-oxide powders comprising the steps of comelting stoichiometric amounts of hydrated nitrates of at least two cations, freezing the melt to produce an intimate mixture of the solid hydrated nitrates, partially dehydrating the solid mixture at a subliquidus temperatures and heating the dehydrated mixture in order to drive off the nitrogen and decompose the mixture to the oxide.
- Ceramics, Refractories and Glass