scholarly journals Parametric Appraisal of Process Parameters for Adhesion of Plasma Sprayed Nanostructured YSZ Coatings Using Taguchi Experimental Design

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Sisir Mantry ◽  
Barada K. Mishra ◽  
Madhusudan Chakraborty
Keyword(s):  
Experimental Design ◽  
Bond Strength ◽  
Adhesion Strength ◽  
Process Parameters ◽  
Particle Temperature ◽  
Taguchi Experimental Design ◽  
Interfacial Toughness ◽  
Ysz Coating ◽  
Particle Velocities ◽  
Plasma Sprayed

This paper presents the application of the Taguchi experimental design in developing nanostructured yittria stabilized zirconia (YSZ) coatings by plasma spraying process. This paper depicts dependence of adhesion strength of as-sprayed nanostructured YSZ coatings on various process parameters, and effect of those process parameters on performance output has been studied using Taguchi’s L16orthogonal array design. Particle velocities prior to impacting the substrate, stand-off-distance, and particle temperature are found to be the most significant parameter affecting the bond strength. To achieve retention of nanostructure, molten state of nanoagglomerates (temperature and velocity) has been monitored using particle diagnostics tool. Maximum adhesion strength of 40.56 MPa has been experimentally found out by selecting optimum levels of selected factors. The enhanced bond strength of nano-YSZ coating may be attributed to higher interfacial toughness due to cracks being interrupted by adherent nanozones.

scholarly journals Erratum to “Optimization of process parameters for recycling of mill scale using Taguchi experimental design”

2019 ◽  
Vol 33 (9) ◽  
pp. 4573-4573
Author(s):  
Seok-Heum Baek ◽  
Soon-Hyeok Hong ◽  
Seok-Swoo Cho ◽  
Deuk-Yul Jang ◽  
Won-Sik Joo
Keyword(s):  
Experimental Design ◽  
Process Parameters ◽  
Taguchi Experimental Design ◽  
Mill Scale ◽  
Optimization Of Process Parameters

Particle Velocity and Temperature influences on the Microstructure of Plasma Sprayed Nickel

1996 ◽  
Author(s):  
R.N. Wright ◽  
J.R. Fincke ◽  
W.D. Swank ◽  
D.C. Haggard
Keyword(s):  
Relative Density ◽  
Particle Velocity ◽  
Particle Temperature ◽  
Deposition Efficiency ◽  
Nickel Coatings ◽  
Higher Temperature ◽  
Velocity Changes ◽  
Particle Velocities ◽  
Lower Temperature ◽  
Plasma Sprayed

Abstract The variation in microstructure of high power plasma sprayed nickel coatings deposited with particle velocities ranging from 150 to 425 m/s and nominal particle temperatures of 1650 or 2050°C has been characterized. The relative density of coatings produced at the higher temperature is above 99.5% of theoretical regardless of the particle velocity; at the lower particle temperature the relative density is found to increase with increasing particle velocity. The fraction of unmelted particles is also found to increase with increasing velocity at the lower temperature. The relative deposition efficiency is approximately twice as high for the lower temperature particles compared to the high temperature, and for both temperatures the deposition efficiency decreases substantially with increasing velocity. Changes in the morphology of individual splats with changes in particle characteristics are also described.

Optimization of Process Parameters for a Uniform Ultrasonic Spraying through the Taguchi Experimental Design

2014 ◽  
Vol 852 ◽  
pp. 81-85
Author(s):  
Wang Lin Liu ◽  
Hsi Harng Yang ◽  
Mu Hung Chen ◽  
Tung Hsu Hou
Keyword(s):  
Experimental Design ◽  
Process Parameters ◽  
Glass Substrate ◽  
Design Method ◽  
Optical Transmittance ◽  
Quality Characteristic ◽  
Light Transmittance ◽  
Taguchi Experimental Design ◽  
Optimal Process ◽  
Large Area

This study aimed to optimize the process parameters for the ultrasonic spraying of a nanooptical film coating on a large-area glass substrate, using the Taguchi experimental design. The key process parameters affecting spraying performance include the speed of the spray nozzle, flow rate of spray solution, airflow strength, spray height, and spray distance. The Taguchi quality characteristic used was the uniformity of light transmittance. With a glass substrate area of 52 cm2, the optimal process parameters for uniform spraying of silica solution were obtained via the Taguchi design method. The experiments confirmed that the optimal process parameters could effectively improve the uniformity of visible light transmittance; the S/N ratio of optical transmittance uniformity rose by approximately 2.79, transmittance reached 92.02%, and the transmittance uniformity was controllable to within 0.12%.

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