FIELD: metallurgy. SUBSTANCE: composition has, wt. -% : boron carbide 5-35; copper oxide 0.05-0.25; ammonium chloride 0.05-0.1; corundum 64.65-94.9. EFFECT: enhanced quality of composition. 1 tbl
Authors
Dates
1994-05-15—Published
1991-11-12—Filed