磁界配向したSr-フェライト圧粉体の組み合わせ焼結接合

概要

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For the purpose of producing ferrite part with a complicated shape which has different alignment of the ferrite crystallites, the feasibility of combined sinter joining method was studied. Inner disk was compacted under magnetic field of 0-915 kA·m-1 and outer ring compacted under non-magnetic field, respectively. The two compacts was assembled into a unit. CIP treatment was operated to the combined compact and then sintered at 1225°C. It was found that the joint strength of the sinter joined compact produced under the magnetic field is superior to that of the compact fabricated under the non-magnetic field, and that the optimum magnetic field is 250 kA·m-1 because the probability of occurrence of cracks may be enhanced by applying the magnetic field of higher than 250 kA·m-1. The maximum joint strength of 50.8 MPa was obtained by applying the pressure of 100 MPa for the combined green compact at the CIP treatment.
社団法人粉体粉末冶金協会の論文
2000-02-15