Rheological behavior of magnetic powder mixtures for magnetic PIM

被引：10

作者：

Kim, Sung Hun ^{[2
]}

Kim, See Jo ^{[1
]}

Park, Seong Jin ^{[2
]}

Mun, Jun Ho ^{[1
]}

Kang, Tae Gon ^{[3
]}

Park, Jang Min ^{[4
]}

机构：

[1] Andong Natl Univ, Dept Mech Design Engn, Andong, South Korea

[2] POSTECH, Dept Mech Engn, Pohang, South Korea

[3] Korea Aerosp Univ, Sch Aerosp & Mech Engn, Goyang, South Korea

[4] Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands

来源：

KOREA-AUSTRALIA RHEOLOGY JOURNAL | 2012年 / 24卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

powder injection molding (PIM); magneto-rheology (MR); steady shear test; oscillatory shear test; yield stress; MAGNETORHEOLOGICAL FLUIDS; SUSPENSIONS; FLOW;

D O I：

10.1007/s13367-012-0014-1

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Powder injection molding (PIM) is a promising manufacturing technology for the net-shape production of small, complex, and precise metal or ceramic components. In order to manufacture high quality magnets using PIM, the magneto-rheological (MR) properties of the PIM feedstock, i.e. magnetic powder-binder mixture, should be investigated experimentally and theoretically. The current research aims at comprehensive understanding of the rheological characteristics of the PIM feedstock. The feedstock used in the experiment consists of strontium ferrite powder and paraffin wax. Steady and oscillatory shear tests have been carried out using a plate-and-plate rheometer, under the influence of a uniform magnetic field applied externally. Rheological properties of the PIM feedstock have been measured and characterized for various conditions by changing the temperature, the powder fraction and the magnetic flux density.

引用

页码：121 / 127

页数：7

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