抄録
The formation of metastable TbCu7-type disordered compounds and their magnetic properties for rapidly quenched (Fe1-xCox)17Sm2 (0 ≤ x ≤ 1.0) alloys were investigated by X-ray diffraction and thermomagnetization analysis. The disordered compound is formed with single phase in the range 0.5 ≤ x ≤ 1.0 at the disk velocity of 42 m/s. The disordered phase is magnetically harder than the ordered phase of Th2Zn17 structure.