Rheological behavior of magnetic powder mixtures for magnetic PIM

Sung Hun Kim; See Jo Kim; Seong Jin Park; Jun Ho Mun; Tae Gon Kang; Jang Min Park

Korea-Australia Rheology Journal, Vol.24, No.2, 121-127, June, 2012

DOI10.1007/s13367-012-0014-1 Export Citation

Rheological behavior of magnetic powder mixtures for magnetic PIM

Sung Hun Kim, See Jo Kim^{1, †}, Seong Jin Park, Jun Ho Mun¹, Tae Gon Kang², and Jang Min Park³

Department of Mechanical Engineering, POSTECH, Korea
¹Department of Mechanical Design Engineering, Andong National University, Korea
²School of Aerospace and Mechanical Engineering, Korea Aerospace University, Korea
³Materials Technology, Eindhoven University of Technology, The Netherlands

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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.

Keywords:powder injection molding (PIM);magneto-rheology (MR);steady shear test;oscillatory shear test;yield stress

[References]

Chaudhuria A, Wereleya NM, Kothab S, Radhakrishnanb R, Sudarshanb NM, Journal of Magnetism and Magnetic Materials., 293, 206 (2005)
Claracq J, Sarrazin J, Montfort JP, Rheol. Acta, 43(1), 38 (2004)
Cox WP, Merz EH, Journal of Polymer Science., 28, 619 (1958)
German RM, Bose A, Injection Molding of Metals and Ceramics Metal Powder Industries Federation, Princeton, NJ. (1997)
Jolly MR, Carlson JD, Munoz BC, Smart Materials and Structures., 5, 607 (1996)
Kang TG, Hulsen MA, den Toonder JMJ, Phys.Fluids., 24, 042001 (2012)
Keentok M, Rheol. Acta., 21, 325 (1982)
Keentok M, See H, Korea-Aust. Rheol. J., 19(3), 117 (2007)
Kim SJ, Kwon TH, Powder Technol., 85(3), 227 (1995)
Klingenberg DJ, Zukoski CJ, Langmuir., 6, 15 (1990)
Kwon TH, Kim CS, Kim SJ, Shin DM, Yoon TS, Ahn SH, Proc. In. Conf. on Transport phenomena in Processing, Hawaii, U.S.A., 1159 (1992)
Liu ZY, Kent D, Schaffer GB, Metallurgical and Materials Transactions A., 40A, 2785 (2009)
Macosko, Christopher W,, Rheology : Principles, Measurements, and Applications, John Wiley & Sons Inc, New York. (1994)
Marrucci G, Ianniruberto G, Proceedings of the Royal Society - Unilever - Indo/UK Forum on the Dynamics of Complex Fluids, Cambridge, UK. (1996)
Milner ST, J. Rheol., 40(2), 303 (1996)
Murillo N, Gonzalez J, Guraya C, Gutierrez M, Seco FJ, Journal of Magnetism and Magnetic Materials., 203, 165 (1999)

[Referenced By]

[1] Chaudhuria A, Wereleya NM, Kothab S, Radhakrishnanb R, Sudarshanb NM, Journal of Magnetism and Magnetic Materials., 293, 206 (2005)

[2] Claracq J, Sarrazin J, Montfort JP, Rheol. Acta, 43(1), 38 (2004)

[3] Cox WP, Merz EH, Journal of Polymer Science., 28, 619 (1958)

[4] German RM, Bose A, Injection Molding of Metals and Ceramics Metal Powder Industries Federation, Princeton, NJ. (1997)

[5] Jolly MR, Carlson JD, Munoz BC, Smart Materials and Structures., 5, 607 (1996)

[6] Kang TG, Hulsen MA, den Toonder JMJ, Phys.Fluids., 24, 042001 (2012)

[7] Keentok M, Rheol. Acta., 21, 325 (1982)

[8] Keentok M, See H, Korea-Aust. Rheol. J., 19(3), 117 (2007)

[9] Kim SJ, Kwon TH, Powder Technol., 85(3), 227 (1995)

[10] Klingenberg DJ, Zukoski CJ, Langmuir., 6, 15 (1990)

[11] Kwon TH, Kim CS, Kim SJ, Shin DM, Yoon TS, Ahn SH, Proc. In. Conf. on Transport phenomena in Processing, Hawaii, U.S.A., 1159 (1992)

[12] Liu ZY, Kent D, Schaffer GB, Metallurgical and Materials Transactions A., 40A, 2785 (2009)

[13] Macosko, Christopher W,, Rheology : Principles, Measurements, and Applications, John Wiley & Sons Inc, New York. (1994)

[14] Marrucci G, Ianniruberto G, Proceedings of the Royal Society - Unilever - Indo/UK Forum on the Dynamics of Complex Fluids, Cambridge, UK. (1996)

[15] Milner ST, J. Rheol., 40(2), 303 (1996)

[16] Murillo N, Gonzalez J, Guraya C, Gutierrez M, Seco FJ, Journal of Magnetism and Magnetic Materials., 203, 165 (1999)