Magnetic head having layers of amorphous magnetic alloy bonded together with a glass containing vandium oxide phosphorus oxide and antimony oxide

摘要

A magnetic head has a layer of amorphous magnetic alloy arranged to define a magnetic gap therebetween, the layer being bonded with a bonding glass having a viscosity of 105 poises or less at a temperature by at least 50 DEG C. lower than the crystallization temperature of the amorphous magnetic alloy, a good water resistance after sintering and a low coefficient of thermal expansion such as 100x10-7/ DEG C. or less. The bonding glass contains 55 to 70% by weight of V2O5, 17 to 25% by weight of P2O5, 3 to 20% by weight of Sb2O3, 0 to 20% by weight of PbO, 0 to 15% by weight of Tl2O, and 0 to 5% by weight of Nb2O5.