| 摘要 |
PURPOSE:To provide an additive adding method for manufacturing nonmagnetic substrates for magnetic heads composed basically of CoO and NiO or NiO. CONSTITUTION:In a method for manufacturing nonmagnetic substrates for magnetic heads composed basically of CoO and NiO or NiO, which contains a raw material powder mixing process, calcining process, grinding process, sintering process, etc., an additive, such as Al2O3, TiO2, CaO, MnO, etc., is added to the raw material powder in the raw material mixing process. When this manufacturing method is applied, a compact sintered body having a stable transverse strength and small crystal grain diameter can be obtained even when the sintered body is sintered at a low temperature. Therefore, this manufacturing method has an economical advantage, because the occurrence of chipping which occurs at the time of machining can be reduced and the yield can be increased at the time of machining. |
