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

李平云; 操振华; 江中浩; 孟祥康

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

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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.

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《中国物理快报：英文版》 |2011年第8期|221-224|共4页
作者
李平云; 操振华; 江中浩; 孟祥康;
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作者单位

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;

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原文格式 PDF
正文语种 chi
中图分类金属学与热处理;
关键词
alloy; friction; magnetometer;

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

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