5P4、Ni12P5及Ni3P。經(jīng)過熔體旋淬處理后，其薄帶試樣中磷化物主要以Ni12P5和Ni3P形式存在。此外，對比發(fā)現(xiàn)，合金內(nèi)鎳含量的增加在一定程度上促使了磷化物相的粗化。通過調(diào)控合金的凝固行為及物相提取工藝，可獲得多級孔結(jié)構(gòu)的Ni-P顆粒，其孔洞是由于腐蝕過程中銅基體、共晶組織內(nèi)及固溶部分的銅被去除而形成的。通過對典型合金進(jìn)行物相提取，實(shí)現(xiàn)了可控合成磷化物，這對于拓展功能性磷化物的應(yīng)用具有促進(jìn)作用。;Cu-Ni-P alloys with different atomic ratios of Ni:P (2:1, 3:1, 4:1 and 5:1) were designed, and the microstructure characteristics and phase extraction treatments of ingots and melt-spun ribbons were discussed. Results show that Cu-xNi-4.5P ingots are composed of Cu and multiple Ni-P phases, including Ni5P4, Ni12P5 and Ni3P. With melt-spun process, the phosphides mainly exist in the form of Ni12P5 and Ni3P compounds. Meanwhile, further increasing nickel concentration of alloys can cause the structure-coarsening of phosphides in some degree. By controlling the solidification behavior and phase extraction process, Ni-P particles with multistage pore structure can be obtained, in which the pores are formed due to the etching of Cu dendrites and Cu existing in eutectic structure and solid solution region. Thus, phase extraction from metallic alloys provides a new controllable method to synthesize functional multistage porous phosphides."/>