| 摘要 |
FIELD: powder metallurgy, namely production of niobium powder, possibly used manufacture of capacitors and electronic devices. ^ SUBSTANCE: niobium powder for making capacitors contains at least one element selected from group including nitrogen, carbon, boron, sulfur and it has bulk density 0.5 - 2.5 g/ml. Powder is produced by activation treatment of initial niobium powder or niobium material. Sintered material for making capacitors is produced from prepared niobium powder by sintering or extrusion. Sintered material features large number of maximums of pore diameter distribution. ^ EFFECT: large capacity of capacitor for mass unit, low leakage current, high moisture resistance. ^ 63 cl, 2 dwg, 7 tbl, 19 ex |
