Measurement of hindered settling in magnetic dispersions

被引：1
|
作者：
Mercer, T [1 ]
Bissell, PR [1 ]
Gilson, RG [1 ]
机构：
[1] Univ Cent Lancashire, Ctr Mat Sci, Preston PR1 2HE, Lancs, England
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 05期
关键词：
hindered settling; Kozeny-Carman model; magnetic fluids; Richardson-Zaki model; Steinour model;
D O I：
10.1109/TMAG.2002.802504
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 measurement of hindered settling in gamma-Fe2O3 recording media dispersion has been carried out using a scanning column magnetometry technique. From subsequent analysis, a high trapped-liquid estimate (of similar to84% by volume of the settling unit) within the suspension structures was found that compares favorably with a previous computer simulation. Correction of hindered settling models to account for the trapped-liquid gave further confidence in the result. In each case, model parameters reduced near-to, or agreed with, those found originally in simple systems that contain little-to-no trapped-liquid.
引用
收藏
页码：3219 / 3221
页数：3
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