Rheological behavior of magnetic powder mixtures for magnetic PIM

Title
Rheological behavior of magnetic powder mixtures for magnetic PIM
Author(s)
김성훈[김성훈]김시조[김시조]박성진[박성진]문준호[문준호]강태곤[강태곤]박장민
Keywords
MAGNETORHEOLOGICAL FLUIDS; SUSPENSIONS; FLOW
Issue Date
201206
Publisher
KOREAN SOC RHEOLOGY
Citation
KOREA-AUSTRALIA RHEOLOGY JOURNAL, v.24, no.2, pp.121 - 127
Abstract
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.
URI
http://hdl.handle.net/YU.REPOSITORY/28007http://dx.doi.org/10.1007/s13367-012-0014-1
ISSN
1226-119X
Appears in Collections:
공과대학 > 기계공학부 > Articles
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