Microrheological study of magnetic particle suspensions

被引:19
作者
Jhon, MS
Kwon, TM
Choi, HJ
Karis, TE
机构
[1] INHA UNIV,DEPT POLYMER SCI & ENGN,INCHON 402751,SOUTH KOREA
[2] IBM CORP,ALMADEN RES CTR,DIV RES,SAN JOSE,CA 95120
关键词
D O I
10.1021/ie950749w
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Two different microrheological. characterization techniques for the microstructure of complex fluids (i.e. rheomagnetic and rheooptic measurements) were adopted to study the microstructural state of magnetic particle suspensions. These two techniques measure the dispersion state of various single-domain magnetic particles (rodlike gamma-Fe2O3 or CrO2 and platelike Ba-ferrite). The techniques complement one other by measuring the order parameter for the magnetic particles in suspension over different concentration ranges. The rheomagnetic measurement is good for on-line characterization of microrheological properties of magnetic particle suspensions. The rheooptical measurement is useful for off-line dispersion microstates and rheological properties of the suspensions.
引用
收藏
页码:3027 / 3031
页数:5
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