CERAMIC BINDER FOR TOOL MADE OF CUBIC BORON NITRIDE Russian patent published in 1994 - IPC

Abstract RU 2024465 C1

FIELD: polishing tools. SUBSTANCE: ceramic binder has, wt.-%: SiO₂ 60-64; Al₂O₃ 3-6; Na₂O 4-6; K₂O 5-7; CaO 0.1-0.8; MgO 0.1-0.8; Z₂O₂ 2-4; MnO 0.3-0.9; B₂O₃ 3-5; Li₂O 4.5-7.5; BaO 6-10, and oxides of B₂O₃, Li₂O and BaO are taken at the ratio 1:1.5:2, respectively. EFFECT: prevention of microfissure formation, providing of optimal density and microhardness of glass-phase matrix. 2 cl, 2 tbl

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RU 2 024 465 C1

Authors

Starodubova G.N.

Kolomazin V.M.

Ehfros M.G.

Cherkudinov A.S.

Golubev V.P.

Dates

1994-12-15—Published

1991-07-15—Filed