LOW-MELTING GLASS FOR JOINING MAGNETIC HEAD ELEMENTS Russian patent published in 1994 - IPC

Abstract SU 1319487 A1

FIELD: glass compositions used for joining constructional members end cores in the magnetic head block and for joining the magnetic head elements for disc accumulators. SUBSTANCE: the glass comprises (wt %): 54-64.4 PbO; 10.4-11 B₂O₃; 2.6-3 SiO₂; 0.1-1 Al₂O₃; 15-22 Bi₂O₃; 5.7-6 ZnO; 0.2-4.5 Y₂O₃. The glass has a tec of 85-90 10^-7 and a microhardness of 401-436 SRS. EFFECT: improved microhardness. 1 tbl

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SU 1 319 487 A1

Authors

Мaksimov N.N.

Solov'Eva L.N.

Dates

1994-09-30—Published

1985-08-07—Filed