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http://dx.doi.org/10.3740/MRSK.2007.17.1.011

Design of Turbulent In-situ Mixing Mixer and Fabrication of Cu-TiB2 Nanocomposities  

Choi, Baek-Boo (School of Material Science and Engineering, Pusan National University)
Park, Jung-Su (School of Material Science and Engineering, Pusan National University)
Yun, Ji-Hun (School of Material Science and Engineering, Pusan National University)
Ha, Man-Young (Department of Mechanical Engineering, Pusan National University)
Park, Yong-Ho (School of Material Science and Engineering, Pusan National University)
Park, Ik-Min (School of Material Science and Engineering, Pusan National University)
Publication Information
Korean Journal of Materials Research / v.17, no.1, 2007 , pp. 11-17 More about this Journal
Abstract
Turbulent in-situ mixing process is a new material process technology to get dispersed phase in nanometer size by controlling reaction of liquid/solid, liquid/gas, flow ana solidification speed simultaneously. In this study, mixing which is the key technology to this synthesis method was studied by computational fluid dynamics. For the simulation of mixing of liquid metal, static mixers investigated. Two inlets for different liquid metal meet ana merge like 'Y' shape tube having various shapes and radios of curve. The performance of mixer was evaluated with quantitative analysis with coefficient of variance of mass fraction. Also, detailed plots of intersection were presented to understand effect of mixer shape on mixing. The simulations show that the Reynolds number (Re) is the important factor to mixing and dispersion of $TiB_2$ particles. Mixer was designed according to the simulation, and $Cu-TiB_2$ nano composites were evaluated. $TiB_2$ nano particles were uniformly dispersed when Re was 1000, and cluster formation and reduction in volume fraction of $TiB_2$ were found at higher Re.
Keywords
In-situ mixing; Static mixer; COV; Cu-based MMCs; Nanocomposite;
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  • Reference
1 A. Moryensen, J. A.comie and M. C. Flemings, J. Met., 40, 12 (1988)
2 I. A. Ibrahim, F. A. Mohamed and E. J. Lavernia, J. Mater. Sci., 26, 1137 (1991)   DOI
3 J. M. Ottino, The kinematics of mixing: stretching, chaos, and transport, Cambridge University Press, (1989)
4 H.-C. Yang, S.-K. Park and S.-W. Oh, Proceedings of the KSME 2004 Spring Annual Meeting., 1957 (2004)   과학기술학회마을
5 Y. V. Baikalova and O. I. Lomovsky, J. Alloy. Compound., 297, 87 (2000)   DOI   ScienceOn
6 M. J. Koczak and M. K. Premkumar, JOM., 1, 44 (1993)
7 Y. Flom and R. J. Arsenault, J. Met., 38, 31 (1986)
8 T. W. Chow, A. Kelly and A. Okura, Composites., 16, 187 (1986)   DOI   ScienceOn
9 Y. Wu and E. J. Lavernia, Metall. Trans., 23A, 2923 (1992)   DOI
10 Z. Y. Ma, X. G. Ning, Y. X. Lu, J. H. Li, J. Bi and Y. Z. Zhang, Mater.Lett., 21, 69 (1994)   DOI   ScienceOn
11 T. Maruyama and S. Onose, J. Nuclear. Sci. Tech., 36(4), 380 (1999)   DOI
12 K. J. Myers, A. Bakker and D. Ryan, Chemical Engineering Progress., 93(6), 28 (1997)
13 H.-C. Yang, S.-K. Park and S.-W. Oh, Proceedings of the KSME 2003 Spring Annual Meeting., 1955 (2003)   과학기술학회마을
14 Fluent V6.1 Users Manual Users Guide, (2003)
15 J. Lee, N. J. Kim, J. Y. Jung, E. S. Lee and S. Ahn, Scripta. Mat. Materialia., 39(8), 1063 (1998)   DOI   ScienceOn