FIELD: electricity.
SUBSTANCE: for formation of cathode there used is the mixture containing titanium diboride powder, carbon-containing filler, carbon-containing binding agent and boron-containing additive, namely boron oxide or boric acid in amount of 1-7 parts by weight at titanium diboride content of not more than 60 parts by weight. For cathode manufacture the mixture is compacted under pressure of 1-2 t/cm2, dried, hardened at 200°C and calcined at 700-1200°C in reducing or inert medium.
EFFECT: improving oxidation resistance and water affinity with aluminium of compositional cathodes with diboride content.
5 cl, 1 ex, 2 tbl
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