ACOUSTIC PROPERTIES OF MAGNETIC FLUIDS BASED ON TRANSFORMER OIL UNDER MAGNETIC FIELD

被引：5
|
作者：
Kudelcik, Jozef [1 ]
Bury, Peter [1 ]
Kopcansky, Peter [2 ]
Timko, Milan [2 ]
Zavisova, Vlasta [2 ]
机构：
[1] Zilinska Univ Ziline, Dept Phys, Zilina 01026, Slovakia
[2] IEP SAS, Dept Magnetism, Kosice 04001, Slovakia
来源：
JOURNAL OF ELECTRICAL ENGINEERING-ELEKTROTECHNICKY CASOPIS | 2013年 / 64卷 / 06期
关键词：
magnetic fluid; transformer oil; acoustic spectroscopy; clusters; magnetic field; FERROFLUIDS;
D O I：
10.2478/jee-2013-0058
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The structural changes in magnetic fluids based on transformer oil TECHNOL and MOGUL upon the effect of an external magnetic field and temperature were studied by acoustic spectroscopy. When a magnetic field is increased, the interaction between the magnetic field and the magnetic moments of the nanoparticles leads to the aggregation of magnetic nanoparticles and following clusters formation. However, the temperature of magnetic fluids has also very important influence on the structural changes because of the mechanism of thermal motion that acts against the cluster creation. The live time of clusters have relative long time scale for the magnetic fluid based on TECHNOL, while for MOGUL is quite short.
引用
收藏
页码：381 / 385
页数：5
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