纳米晶(Fe,Cr)-N的制备与磁性  

Preparation and Magnetic Properties of Nano-Crystalline(Fe,Cr)-N

作　　者：封文江[1] 方戈亮[1] 王传银[2] 徐琦[1] 张礼庆[1] 

机构地区：[1]沈阳师范大学物理科学与技术学院,辽宁沈阳110034 [2]沈阳师范大学实验中心,辽宁沈阳110034

出　　处：《沈阳师范大学学报（自然科学版）》2008年第1期61-64,共4页Journal of Shenyang Normal University:Natural Science Edition

基　　金：沈阳师范大学博士科研基金资助项目(55440104015)

摘　　要：在氮气气氛下,球磨Fe80Cr20得到纳米晶(Fe,Cr)-N单相.通过X射线衍射分析,可知其为立方岩盐型CrN晶体结构.直到773 K纳米晶还保持单相,在更高的温度分解为(Fe,Cr)-N和Fe-Cr固溶体.由于Fe原子和N原子的结合,Fe原子的内秉磁矩被消减.The nano-crystalline （Fe, Cr）N was prepared as a single phase by milling Fe80Cr20 in a nitrogen atmosphere. Its crystal structure is determined to be the cubic rock salt-type CrN by X-ray diffraction measurements. The nano- crystalline is stable up to above 773 K and then decomposes into （Fe,Cr）N and Fe-Cr solid solution. Due to the combination of Fe and N atoms. the intrinsic magnetic moment of Fe atoms is reduced, which is confirmed by our measurements.

关 键 词：纳米晶 晶体结构 Fe-Cr固溶体 内秉磁矩 

分 类 号：TF125[冶金工程—粉末冶金]