3Boyer Ⅲ,Charles E.Borchers Eric J,et a1.Microwave absorber employing acicular magnetic metallic filaments[P].US:5 085 931.1992—02—04.
4Gemhenson M,Schdl T.Method and apparatus for the manufacture of metMlic filaments[P].US:4 853 030.1989.
5Yoshiaki Sawada,Yoshiteru Kageyama,Masashi lwata,et a1.Synthesis and magnetic prope~ies of uhrafine iron panicles prepared by pyrolysis of carbonyliron[J].Jpn Appl Phys,1992,31(12A):3858—3861.