THERMAL-STABILITY OF FE3SI-BASED NANOCRYSTALS

被引：13

作者：

GAO, ZQ

FULTZ, B

机构：

[1] W.M. Keck Laboratory, 138-78, California Institute of Technology, Pasadena, 91125, CA

来源：

HYPERFINE INTERACTIONS | 1994年 / 94卷 / 1-4期

关键词：

D O I：

10.1007/BF02063764

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

We studied the thermal stability of nanocrystalline (Fe3Si)(0.95)Nb-0.05 and Fe3Si alloys prepared by high-energy ball milling. Alloys were characterized by Mossbauer spectrometry, as well as X-ray diffractometry and transmission electron microscopy. The Nb-containing alloy was considerably more stable against grain growth than was the binary Fe3Si alloy. Mossbauer spectrometry showed that the Nb atoms segregated away from the DO3 ordered domains, probably to grain boundaries, and thus provided a strong suppression on grain growth.

引用

页码：2213 / 2218

页数：6

共 18 条

[1] ISOMER-SHIFTS AND THEIR RELATION TO CHARGE-TRANSFER IN DILUTE FE ALLOYS [J].