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应用共沉淀－还原扩散法成功地合成了ＹＴｉ（Ｆｅ（１－ｘ）ＣＯｘ）（１１）系列稀土永磁合金（ｘ＝０．０，０．１５，０．２５，０．５），确定了其最佳合成条件，采用ＸＲＤ研究了其晶体结构及在Ｍ１５５型振动样品磁强计上测了其居里温度和磁化强度。得出：ＹＴｉ（Ｆｅ（１－ｘ）ＣＯｘ）（１１）系列合金均具有ＴｈＭｎ（１２）型结构，其晶胞参数随Ｃｏ掺入量增大而减小；居里温度点随Ｃｏ掺入量增大而升高；比饱和磁化强度在ｘ＝０．１５处达到最大。
The YTi (Fe (1-x) COx) (11) rare earth permanent magnet alloys (x = 0.0,0.15,0.25,0.5) were successfully synthesized by coprecipitation- The optimum synthesis conditions were investigated. The crystal structure and the Curie temperature and magnetization of the sample were measured by XRD. The results show that all of the YTi (Fe (1-x) COx) (11) alloys have a ThMn (12) type structure and their unit cell parameters decrease with the increase of Co content. The amount increases and rises; the specific saturation magnetization reaches the maximum at x = 0.15.