2020 年 59 巻 1 号 p. 200-203
In order to produce composite powders exhibiting higher hardness and magnetic properties, pure copper powder and pure zinc powder together with ferrite(FR)powder were mechanically alloyed(MAed)using a vibration type of ball mill. The composite powders were evaluated by hardness, X–ray diffraction(XRD)and magnetic properties. The hardness of the composite powders increased as increasing of MA time and the amount of FR powder. No solid–state reaction among copper, zinc and FR for all composite powders was detected by XRD analysis suggesting that the composite powders can be exhibiting magnetic properties. No change was observed in the saturation magnetic flux after MA process. Whereas the coercive force increased as increasing MA time.