Paper Title:
An Empirical Method to Evaluate the In-Flight Particle Behaviors within a Cross Section of Mass Flux during Atmospheric Plasma Spraying
  Abstract

In order to enhance understandings of the coating formation in the plasma spraying, an empirical method known as the spot spraying bead formation, was designed. This study is focused on the applicability of the proposed empirical method to explain the microstructural inhomogeneity during the process. Based on the in-flight particle diagnostics using DPV-2000, two different plasma gas compositions were chosen to evaluate the plasma gas effect on the microstructural evolution of Al2O3-TiO2 composite feedstock. A blended NiCr-Cr2O3-Ag-Ca/BaF2 feedstock was sprayed in order to examine the effects of particle parameters on the particle trajectory and the coating microstructures. Through the empirical approach, impacting particle properties and particle trajectory depending on process parameters could be directly shown and coating microstructures could be deduced from the characteristics of the spot spraying bead.

  Info
Periodical
Materials Science Forum (Volumes 534-536)
Edited by
Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
Pages
405-408
DOI
10.4028/www.scientific.net/MSF.534-536.405
Citation
H. S. Choi, H. S. Joo, K. M. Lim, H. H. Jo, C. H. Lee, "An Empirical Method to Evaluate the In-Flight Particle Behaviors within a Cross Section of Mass Flux during Atmospheric Plasma Spraying", Materials Science Forum, Vols. 534-536, pp. 405-408, 2007
Online since
January 2007
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$32.00
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