Processing of bulk nanostructured Ni-Fe materials
Processing of bulk nanostructured Ni-Fe materials
复制标题
块状纳米结构镍铁材料的加工
DOI：
10.1016/s1359-6462(01)00780-1
复制
发表时间：
2001
影响因子：
6
通讯作者：
Y. Kang
中科院分区：
文献类型：
--
作者：
J. Lee;Y. Kang
结论采用纳米γ-Ni-Fe团聚体粉末经高压压制和无压烧结，成功制备了全密度纳米γ-Ni-Fe块体材料。通过高压压实消除团聚体间的孔隙被解释为负责这个全密度过程的动力学主要是由扩散控制的晶粒bouquet和三重连接。讨论了烧结过程中晶粒生长的显著减缓是由于化学稳定性和
ConclusionsFull density nanograined γ-Ni-Fe bulk material was successfully fabricated by high pressure compaction and pressureless sintering of γ-Ni-Fe nano-agglomerate powders. The elimination of inter-agglomerate pores by high pressure compaction was explained to be responsible for this full density process of which kinetic is mainly controlled by diffusion in grain boudaries and triple junctions. Remarkable slowdown of grain growth during sintering was discussed to result from chemical stability and