Dornier System Gmbh

Wolfgang Wagner

Wulf Kock

Rainer Schmidberger

A highly concentrated silver salt suspension and tin salt suspension from which a silver and tin oxide powder can be made under utilization of the reaction spray method is made by adding in small steps a tin II salt solution into a small volume of concentrated nitric acid while maintaining a temperature below 40 degrees C. to obtain an injection suspension of a tin II salt solution, the injection suspension is then mixed with about a three fold quantity (volume) of concentrated 65% nitric acid, the latter mixture is then added in small steps to a watery citrate solution and combined with tin granules until all tin granules are dissolved and changed into a tin IV oxide hydrate suspension; the completed tin IV oxide hydrate suspension as per the preceding step is mixed with a watery silver nitrate solution.

Preparation of a suspension in preparation of powder making

A heterogenous powder comprising particles of tungsten grains with a diameter of less than 1 .mu.m with a binder sponge-like coating of at least one metal selected from the group consisting of nickel, copper, silver, iron, cobalt, molybdenum and rhenium with a particle diameter of 10 to 50 .mu.m, a process for the preparation thereof, method of forming sintered elements therefrom and the elements produced thereby being useful as penetrating projectiles.

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Weingarten, Germany

Wolfgang Wagner