The influence of micro-structure on magnetic properties of amorphous powder core was investigated. The results show that the amorphous powders of the powder core become crystallized with the increase of annealing temperature, and the permeability decreases from 60 to 12, the core loss increases from 0.2 to 0.3 W·cm-3 , DC-bias characteristic was improved with further increase of annealing temperature, and the magnetic properties become deteriorated due to decrease of permeability and enhancement of coercive force resulting from the crystallization of amorphous powder.
参考文献
[1] | Yagi M;Endo I .Magnetic properties of Fe-based amorphous powder cores produced by a hot-pressing method[J].Journal of Magnetism and Magnetic Materials,2000,215-216:284. |
[2] | Dobrzanskia L A;Nowosielskia R .Properties and structure of the toroidal magnetically soft cores made from the amorphous strips,powder,and composite materials[J].Journal of Materials Processing Technology,2004,157-158:669. |
[3] | Lefebvre L P .Effect of electrical resistivety on core losses in soft magnetic iron powder materials[J].Journal of Magnetism and Magnetic Materials,1997,196:L93. |
[4] | Raja MM.;Majumdar B.;Narayanasamy A.;Chattopadhyay K.;Ponpandian N. .Soft magnetic properties of nanostructured FINEMET alloy powder cores[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(0):1062-1065. |
[5] | 张亮,卢志超,李德仁,陆曹卫,张宏浩.Fe78-2xCrxMoxSn2P10Si4B4C2(x=2,4)块体非晶合金的制备和性能[J].金属功能材料,2004(01):1-3. |
[6] | Dobrza'nski L A .Properties and structure of the toroidal magnetically soft cores made from the amorphous strips,powder,and composite materials[J].Journal of Materials Processing Technology,2004,157-158:669. |
[7] | Shoji Yoshida;Takao Mizushima;Akihiro Makino;Akihisa Inoue .Structure and soft magnetic properties of bulk Fe-Al-Ga-P-C-B-Si glassy alloys prepared by consolidating amorphous powders[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(0):1019-1022. |
[8] | Kollar P .Structure and magnetic properties of hot pressed Co-based powder[J].Journal of Magnetism and Magnetic Materials,2004,278:373. |
[9] | 蒲健,王敬丰,甘章华,易回阳,肖建中.块体Pd77.5Cu6Si16.5非晶合金的晶化动力学研究[J].稀有金属,2003(06):709-713. |
[10] | Guo Yicheng;Wang Zhenxi.Amorphous Physics[M].北京:科学出版社,1984:370. |
[11] | Lu Caowei .Investigation of amorphous powder for nominal composition Fe74Al4Sn2P10C2B4Si4 and its powder core[J].Chinese Physics,2006,55(05):2553. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%