FIELD: capacitors. SUBSTANCE: concentrate comprises, mas.%: TiO2, 48.0-53.0; SiO2, 38.0-41.7; Al2O3, 2.4-5.5; Nb2O5, 0.1; V2O5, 0.1; Fe2O3, 2.5-2.8; MgO, 0.5-0.6; CaO, 0.3-0.4; MnO, 0.04-0.05; P2O5, 0.15-0.20; Cr2O3, 0.01-0.02; ZrO2, 0.25-0.30. Concentrate is mixed with carbon (its quantity is 4-10 mas.%) and half-finished article is formed. These articles are roasted in vacuum at 1500 C. EFFECT: improved efficiency. 1 tbl
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Authors
Dates
1997-06-27—Published
1993-12-20—Filed