RESISTIVE MATERIAL Russian patent published in 2000 - IPC

FIELD: electrical engineering. SUBSTANCE: invention can find use in manufacture of nonlinear recorders utilized, for example, in overvoltage-protection devices. Material contains conducting phase (boron carbide, 10-70%), inorganic or organic binding agents (10-30%), and dielectric filler. The latter contains at least one component selected from group including, wt.%: ZnO, 1-65; CuO, 0.5-50; FeO₃ or FeO, 0.5-50; MnO₂ or MnO, 0.3-2; Co₂O₃ or CoO, 0.5-5; Bi₂O₃, 0.5-5; Sb₂O₃, 0.5-50; CrO₃, 0.3-50; V₂O₇, 0.5-5; K₂Cr₂O₇ or Na₂Cr₂O₇ or NH₄Cr₂O₇, 0.5-0.3. EFFECT: achieved simultaneously high values of nonlinearity factor and initial resistivity. 5 cl, 1 tbl