机械合金化Co_（80）P_（20）合金的交流磁性

Study on the AC Magnetic Properties of Amorphous Co_(80)P_(20) Alloy by Mechanical Alloying

由行星式高能球磨机采用机械合金化法成功地将纯元素粉末Ｃｏ和Ｐ合成为非晶态Ｃｏ８０Ｐ２０合金．其结构由Ｘ射线衍射仪分析．讨论了交流磁性能随球磨时间的变化规律．在球磨时间为３０ｈ附近出现完全非晶相时样品的交流磁化率ｘ达极大值；而反映铁磁物质磁损耗性能的损耗因子ｔｇδ出现极小值．

The amorphous Co80P20 alloy was successfully synthesized by mechanical alloying of pure elemental powders of Co and P using a planetary high-energy ball mill.The structure of this alloy was analysed by X-ray diffraction. The dependence of the AC magnetic properties on milling time was discussed. The AC magnetic susceptibility x approached maximum and loss factor tgδ representing magnetic loss properties of ferromagnetic materials approached minimum at about 30 hours of milling time,when the structure for the alloy powders was completely amorphous phase.