FMAA-MS Investigation into Ni_(68)Fe_(32) Nanoalloy with Sample Length Less than 30mm  

作　　者：LI Ping-Yun CAO Zhen-Hua JIANG Zhong-Hao MENG Xiang-Kang 李平云;操振华;江中浩;孟祥康(National Laboratory of Solid State Microstructures,Department of Materials Science and Engineering,Nanjing University,Nanjing 210093;School of Materials Science and Engineering,Key Laboratory of Automobile Materials,Jilin University,Changchun 130025)

机构地区：[1]National Laboratory of Solid State Microstructures,Department of Materials Science and Engineering,Nanjing University,Nanjing 210093 [2]School of Materials Science and Engineering,Key Laboratory of Automobile Materials,Jilin University,Changchun 130025

出　　处：《Chinese Physics Letters》2011年第8期221-224,共4页中国物理快报（英文版）

基　　金：by the National Basic Research Program of China under Grant No 2010CB631004;the Fundamental Research Funds for the Central Universities(1112021302,1106021343 and 1116021301);the PAPD,and the National Natural Science Foundation of China(11004098,50831004,51001060).

摘　　要：An investigation into the properties of nanocrystalline(NC)materials with sample lengths less than 30 mm seems to be a challenge by using conventional mechanical spectroscopy(MS).We use a newly developed frequency modulation acoustic attenuation mechanical spectroscopy(FMAA-MS)to investigate phase transition in Ni68Fe32 NC alloy(22 nm)where the length of the sample is 10 mm.An internal friction peak accompanied by an abrupt increase in resonant frequency occurs at 641 K,which originates from order-disorder phase transition,confirmed by a vibrating sample magnetometer and differential scanning calorimetry.

关 键 词：alloy FRICTION MAGNETOMETER 

分 类 号：TG1[金属学及工艺—金属学]