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Alumina-Titania Spot Spraying Bead Formation and Characteristics in Atmospheric Plasma Spraying

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Abstract:

Fine and coarse alumina-titania composite particles were overlaid by allowing the particles to be deposited for a short time without moving a plasmatron [spot spraying bead]. Both the deposition efficiency and maximum deposition rate were measured at the different plasma gas composition. Considering the normalized maximum deposition rate [(maximum deposition rate)x(deposition efficiency)-1], effects of particle size and plasma gas composition on the particle segregation within a cross-section of mass flux could be estimated. Also, particle melting state according to the position within a mass flux at the moment of impact could be also estimated through the investigations of microstructure and phase composition of the spot spraying bead.

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Periodical:

Materials Science Forum (Volumes 534-536)

Pages:

401-404

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.534-536.401

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Online since:

January 2007

Authors:

Hye Sook Joo, Han Shin Choi, Hyung Ho Jo, Hoon Cho, June Seob Kim, Chang Hee Lee

Keywords:

Alumina Titania, Atmospheric Plasma Spraying, Particle Melting State, Spot Spraying Bead

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] G. Shanmugavelayutham, V. Selvarafan, T.K. Thiyagarajan, P.V.A. Padmanabhan, K.P. Sreekumar, R.U. Satpute: Current Applied Physics 6 (2006) 41-47.

DOI: 10.1016/j.cap.2004.12.002

Google Scholar

[2] Sofiane Guessasma, Mokhtar Bounazef, Philippe Nardin: International Journal of Refractory Metals and Hard Materials 24 (2006) 240-246.

DOI: 10.1016/j.ijrmhm.2005.05.012

Google Scholar

[3] Gilyoung Kim, Hanshin Choi, Changmin Han, Sangho Uhum, Changhee Lee: Surface and Coatings Technology 195 (2005) 107-115.

Google Scholar

[4] P.P. Psyllaki, M. Jeandin, D.I. Pantelis: Materials Letters 47 (2001) 77-82.

Google Scholar