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OwnerViktor Ivanovich Bezruk, Mikhail Nikolaevich Dyakonov +3inventors
InventorsViktor Ivanovich Bezruk, Mikhail Nikolaevich Dyakonov, Ivan Stepanovich Lavrov, Alexandr Nikolaevich Lazarev, Iosif Vulfovich Netupsky
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A method of making bulk porous anodes for electrolytic capacitors consists of preparing a suspension of a valve metal powder, selected from the group consisting of tantalum, niobium and titanium in an amount of 30-250 parts by weight, a binding material, which is also a charger of powder metal particles, constituting a 0.2-1.5% aqueous solution of a salt selected from the group consisting of sodium and ammonium salts of carboxymethyl cellulose of celluloseglycolic acid in an amount of 10-35 parts by volume, and a dispersion medium being alcohol or acetone an amount of 15-30 parts by volume. Said suspension is subjected to the effect of an electric field established by a voltage applied to the electrodes and causing deposition of metal powder of the latter with a bulk porous body being thus formed, which is then sintered at a temperature of 1600-2000.degree. C to produce a bulk porous anode. Said method is intended for the production of electrolytic capacitors of various shapes and sizes.
A method of making bulk porous anodes for electrolytic capacitors, which comprises preparing a suspension consisting of a powdered valve metal selected from the group consisting of tantalum, niobium and titanium in an amount of 30-250 parts by weight, a binding material, being a charger of said powdered metal particles, constituting a 0.2-1.5% aqueous solution of a salt selected from the group consisting of sodium and ammonium salts of carboxymethyl cellulose or celluloseglycolic acid in an amount of 10-35 parts by volume, and a dispersion medium selected from the group consisting of alcohol and acetone in an amount of 15-30 parts by volume;
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