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Title: 一些鐵磁薄帶之磁彈性質
Magneto-elastic properties of some ferromagnetic ribbons
Authors: Shang-Pin Wang
王上賓
Contributors: NTOU:Institute of Optoelectronic Sciences
國立臺灣海洋大學:光電科學研究所
Keywords: 薄帶;鐵鈷鎵硼;磁致伸縮;弧光放電;樣品振動磁力計;X射線繞射儀
ribbon;FeCoGaB;Magnetostriction;Arc;VSM;XRD
Date: 2012
Issue Date: 2013-10-07T02:45:22Z
Abstract: 磁伸縮材料能將電磁能與機械能互相轉換,在微機電及感測元件的應用上極具潛力,因此引起廣泛的討論與研究。本論文針對 (Fe81-XCoXGa19)B20(X =0、7、11、19、23)用弧光放電變成錠,噴成薄帶後的磁致伸縮研究,以X光繞射儀(XRD)與震動式樣品磁力計(VSM)觀察磁性質。 然後對VAC-6030薄帶熱處理,觀察磁致伸縮特性與震動式樣品磁力計(VSM)觀察磁性質。 在量測磁性部份,(Fe81-XCoXGa19)B20(X =0、7、11、19、23) 薄帶經由VSM量測結果,我們發現隨X含量的增加,矯顽磁力(Hc)隨之上升的情況,代表磁偶極隨著鈷的增多,磁偶極愈不易翻轉,而在飽和磁化量 隨著X的增加而減少,表示磁性質隨之下降。 磁致伸縮部份,是以應變規量測飽和磁致伸縮 ,Co在23%的磁致伸縮沒有Co在0%的好,而且當轉的角度變高時,磁致伸縮的數值有上升的現象。 VAC6030對as-cast,200,250,300,340度做了VSM,發現熱處理後造成的影響其實不大,磁致伸縮在高角度時伸縮有變大的現象,而熱處理溫高,伸縮值感覺反而變小。
The magnetostrictive materials are potential for MEMS and device application, because of their capability to convert magnetic energy to mechanical energy. This thesis focuses on (Fe81-XCoXGa19)B20(X =0、7、11、19、23) arc discharge into ingots, spray into a thin strip of magnetostrictive, to X-ray diffraction (XRD) and vibration sample magnetometer (VSM), observed magnetic properties. VAC-6030 thin with heat treatment, to observe the magnetostrictive characteristics of vibrating sample magnetometer (VSM), the nature of the observed magnetic. Measured the magnetic part, (Fe81-XCoXGa19)B20(X =0、7、11、19、23) ribbons through the VSM measurement results, we found that with the increase in X-content, along with the coercive force (Hc)rising on behalf of the magnetic dipole with the increase of cobalt, the magnetic dipole are more difficult to flip, and saturation magnetization decrease with increasing X, indicating that the magnetic properties fall. Of magnetostriction part of strain gage to measure the saturation magnetostriction, Co 23% magnetostrictive Co 0% good, and when the turn angle is high, the value of the magnetostriction rise phenomenon. VAC6030 on the as-cast, 200,250,300,340 degrees do VSM, found that heat treatment, the impact will be negligible magnetostriction at high angle stretching larger, while the heat treatment temperature is high, stretching the value of feeling but smaller.
URI: http://ethesys.lib.ntou.edu.tw/cdrfb3/record/#G0019988017
http://ntour.ntou.edu.tw/handle/987654321/34683
Appears in Collections:[Institute of Optoelectronic Sciences] Dissertations and Theses

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