Atomic Diffusion Coefficient Dependence on Heating Rate during Spark Plasma Sintering
During spark plasma sintering(SPS),it is widely argued that the densification mechanism of powder particles can be correlated with some specific physical quantities; however,an atomic diffusion coefficient D has yet to be derived.In this work,we report on the establishment of a framework,which can be used to derive the value of the D and further provide significant insight into the densification mechanisms that are active during powder sintering.We validate the framework by comparing the densification behavior of the atomized and milled Ti40.6Zr9.4Cu37.5Ni9.4Sn3.1 metallic glass powders during SPS,and clarifying the underlying densification mechanisms.
Powder consolidation Spark plasma sintering Metallic glass Diffusion coefficient Mechanical milling
Yang Chao Li Xinxin Li Yuanyuan
National Engineering Research Center of Near-net-shape Forming for Metallic Materials,South China Un National Engineering Research Center of Near-net-shape Forming for Metallic Materials,South China Un
国际会议
北京
英文
546-552
2018-09-16（万方平台首次上网日期，不代表论文的发表时间）