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http://dx.doi.org/10.4150/KPMI.2017.24.1.46

Electrospray and Thermal Treatment Process for Enhancing Surface Roughness of Fecralloy Coating Layer on a Large Sized Substrate  

Lee, Hye Moon (Powder Technology Department, Korea Institute of Materials Science)
Koo, Hye Young (Materials Implementation Department, Korea Institute of Materials Science)
Yang, Sangsun (Powder Technology Department, Korea Institute of Materials Science)
Park, Dahee (Powder Technology Department, Korea Institute of Materials Science)
Jung, Sooho (Powder Technology Department, Korea Institute of Materials Science)
Yun, Jung-Yeul (Powder Technology Department, Korea Institute of Materials Science)
Publication Information
Journal of Powder Materials / v.24, no.1, 2017 , pp. 46-52 More about this Journal
Abstract
Fecralloy coating layer with large surface area is suitable for use as a filter media for efficient removal of hot gaseous pollutants exhausted from combustion processes. For uniform preparation of a Fecralloy coating layer with large surface area and strong adhesion to substrate, electrospray coating and thermal treatment processes are experimentally optimized in this study. A nano-colloidal solution with 0.05 wt% Fecralloy nanoparticles is successfully prepared. Optimized electrospraying conditions are experimentally discovered to prepare a uniform coating layer of Fecralloy nano-colloidal solution on a substrate. Drying the electrospray coated Fecralloy nano-colloidal solution layer at $120^{\circ}C$ and subsequent heating at $600^{\circ}C$ are the best post-treatment for enhancing the adhesion force and surface roughness of the Fecralloy coating layer on a substrate. An electrospray coating system, consisting of several multi-groove nozzles, is also experimentally confirmed as a reasonable device for uniform coating of Fecralloy nano-colloid on a large area substrate.
Keywords
Electrospray; Fe-Cr-Al alloy; Coating; Surface Roughness; Heat Treatment;
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1 J. Y. Yun, S. Yang, H. Y. Koo and H. M. Lee: J. Korean Powder Metall. Inst., 18 (2011) 526   DOI
2 C. H. Cho, S. H. Park, Y. W. Choi and B. G. Kim: Surf. Coat. Tech., 201 (2007) 4847.   DOI
3 M. I. Lerner, V. V. Shamanskii, G. G. Savel'ev and T. A. Yurmazova: Mendeleev. Commun., 11 (2001) 4.
4 S. Dong, G. Zou and H. Yang: Scripta Mater., 44 (2001) 17.   DOI
5 C. Cho, Y. W. Choi, C. Kang and G. W. Lee: Appl. Phys. Lett., 91 (2007) 141501.   DOI
6 V. S. Giria, R. Sarathia, S.R. Chakravarthy and C. Venkataseshaiah: Mater. Lett., 58 (2004) 1047.   DOI
7 M. Cloupeau and B. Prunet-Foch: J. Electrostatics, 22 (1989) 135.   DOI
8 M. Cloupeau and B. Prunet-Foch: J. Electrostatics, 25 (1990) 165.   DOI
9 J. Fernandez de la Mora and I.G. Loscertales: J. Fluid Mech., 260 (1994) 155.   DOI
10 K. Ohno, K. Shimato, N. Taoka, H. Santae, T. Ninomiya and T. Komori: SAE world congress, Detroit, MI (2000).
11 S. Ichikawa. T. Harada and T. Hamanaka: Ceramics, 38 (2003) 296.
12 N. Miyakawa, H. Maeno and H. Takahashi: SAE world congress, Detroit, MI (2003).
13 J. Banhart: Prog. Mater. Sci., 46 (2001) 559.   DOI
14 R. R. Unocic, G. B. Viswanathan, P. M. Sarosi, S. Karthikeyan, J. Li and M. J. Mills: Mater. Sci. Eng. A, 483 (2008) 25.
15 C. J. Bennett, T. E., Hayes, S. T. Kolaczkowski and W. J. Thomas: Proc. R. Soc. Lond., A, 439 (1992) 465.   DOI
16 M. V. Twing, D. E. Webster, A. Cybulski and J. A. Moulijn: Structured Catalysts and Reactors, Marcel Dekker Inc., New York, (1998) 59.
17 P. Avila, M. Montes and E. Miro: Chem. Eng. J., 109 (2005) 1.   DOI