Glass composition and magnetic head employing glass composition

Details Glass composition and magnetic head employing glass composition Glass composition and magnetic head employing glass composition

1997-04-01

1999-08-03

Zimmerman, John J.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

360120, C03C 3072, G11B 5235

Patent

active

059325046

ABSTRACT:
A glass composition contains PbO of 67 to 74 weight %, SiO.sub.2 of 11 to 20 weight %, B.sub.2 O.sub.3 of 3 to 8 weight %, TeO.sub.2 of 3 9 weight %, Na.sub.2 O of 0 to 3 weight %, and ZrO.sub.2 of 1 weight % smaller (except 0). A magnetic head according to the present invention includes a gap forming material, a spacing filling material, a bonding material, or an insulating material for a magnetic head. The gap forming material, the spacing filling material, the bonding material, or the insulating material is made of a glass composition containing PbO of 67 to 74 weight %, SiO.sub.2 of 11 to 20 weight %, B.sub.2 O.sub.3 of 3 to 8 weight %, TeO.sub.2 of 3 to 9 weight %, Na.sub.2 O of 0 to 3 weight %, and ZrO.sub.2 of 1 weight % or smaller (except 0).

REFERENCES:
patent: 4721690 (1988-01-01), Ross et al.

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