Influence of particle parameters at impact on splat formation and solidification in plasma spraying processes

1995 ◽  
Vol 4 (1) ◽  
pp. 50-58 ◽  
Author(s):  
M. Vardelle ◽  
A. Vardelle ◽  
A. C. Leger ◽  
P. Fauchais ◽  
D. Gobin
Keyword(s):  
Plasma Spraying ◽  
Splat Formation ◽  
Particle Parameters

Effect of particle pre-oxidation on Ni and Ni20Cr splat formation during plasma spraying

2020 ◽  
Vol 393 ◽  
pp. 125849
Author(s):  
Yongang Zhang ◽  
Steve Matthews ◽  
Paul Munroe ◽  
Margaret Hyland
Keyword(s):  
Plasma Spraying ◽  
Splat Formation

Effects of Surface Chemistry on Splat Formation During Plasma Spraying

2008 ◽  
Vol 17 (5-6) ◽  
pp. 637-645 ◽  
Author(s):  
A.T.T. Tran ◽  
M.M. Hyland ◽  
T. Qiu ◽  
B. Withy ◽  
B.J. James
Keyword(s):  
Surface Chemistry ◽  
Plasma Spraying ◽  
Splat Formation

Plasma Sprayed Zirconia: Relationships among Particle Parameters, Splat Formation, and Deposit Generation - Part II: Microstructure and Properties

1996 ◽  
Author(s):  
S. Sampath ◽  
J. Matejicek ◽  
C.C. Berndt ◽  
H. Herman ◽  
A.C. Léger ◽  
...  
Keyword(s):  
New York ◽  
Particle Interaction ◽  
Point Of View ◽  
Microstructure Development ◽  
Splat Formation ◽  
Shape Factors ◽  
Microstructure And Properties ◽  
Deposition Parameters ◽  
Particle Parameters ◽  
Plasma Sprayed

Abstract This is the second paper of a two part series based on an interdisciplinary research investigation between the University of Limoges, France, and the State University of New York, Stony Brook, USA, aimed at fundamental understanding of the plasma-particle interaction, deposit formation dynamics and microstructure development. In this paper, the microstructure development during plasma spraying of zirconia is investigated from the point of view of deposition parameters and splat formation (part I). Splats and deposits have been produced at Limoges and Stony Brook under controlled conditions of particle parameters and substrate temperatures. The zirconia splat microstructures thus obtained are examined for their shape factors, grain size, crystallographic texture and defects. Further the deposits were analyzed for phases, porosity and mechanical properties in an effort to develop a process-microstructure property relationship. The results suggest a strong role played by the deposition temperature on the microstructure and properties of the deposit.

Examination of Substrate Surface Melting-Induced Splashing During Splat Formation in Plasma Spraying

2006 ◽  
Vol 15 (4) ◽  
pp. 717-724 ◽  
Author(s):  
Chang-Jiu Li ◽  
Cheng-Xin Li ◽  
Guan-Jun Yang ◽  
Yu-Yue Wang
Keyword(s):  
Plasma Spraying ◽  
Substrate Surface ◽  
Surface Melting ◽  
Splat Formation

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

2007 ◽  
Vol 534-536 ◽  
pp. 405-408 ◽  
Author(s):  
Han Shin Choi ◽  
Hye Sook Joo ◽  
Kyoung Mook Lim ◽  
Hyung Ho Jo ◽  
Chang Hee Lee
Keyword(s):  
Plasma Spraying ◽  
Particle Trajectory ◽  
Empirical Method ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
Particle Properties ◽  
Microstructural Inhomogeneity ◽  
Coating Formation ◽  
Particle Parameters ◽  
Gas Effect

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.

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