Process Optimization of Slurry Spray Technique Through Multi-attribute Utility Function

Process Optimization of Slurry Spray Technique Through Multi-attribute Utility Function Slurry spray technique (SST) could be bethought as an allied thermal spray coating method; wherein, the coating ingredients are subjected to thermal energy for sintering in order to mature the coating structure. It is also relatively new deposition technique and needs more research endeavours for its exploration and effective utilization. This can be done by process optimization for dependent variables of concern in respect to the appropriately chosen input process parameters. Amongst the existing and previously applied multi-attribute optimization approaches, utility-based Taguchi approach has been practiced in this work due to its commendatory properties like monotonicity and concavity. The utility-based elicitation methodology has been demonstrated for simultaneous optimization of two dependent variables of interest, i.e. adhesion strength and coating thickness of mullite–nickel coatings deposited by SST. The utility values based on the preference structure of these dependent variables have been analysed for process accretion by using Taguchi’s theory. Confirmation experiments assure the conceivability of the approach over the range of coating conditions exerted in the SST experimentation. The characterization of thus produced coatings illustrated formidable microstructure free from any major imperfections, besides conforming to the utility-based Taguchi results for the unified attribute function comprising the two response parameters under http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arabian Journal for Science and Engineering Springer Journals

Process Optimization of Slurry Spray Technique Through Multi-attribute Utility Function

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Publisher
Springer Journals
Copyright
Copyright © 2018 by King Fahd University of Petroleum & Minerals
Subject
Engineering; Engineering, general; Science, Humanities and Social Sciences, multidisciplinary
ISSN
1319-8025
eISSN
2191-4281
D.O.I.
10.1007/s13369-018-3337-5
Publisher site
See Article on Publisher Site

Abstract

Slurry spray technique (SST) could be bethought as an allied thermal spray coating method; wherein, the coating ingredients are subjected to thermal energy for sintering in order to mature the coating structure. It is also relatively new deposition technique and needs more research endeavours for its exploration and effective utilization. This can be done by process optimization for dependent variables of concern in respect to the appropriately chosen input process parameters. Amongst the existing and previously applied multi-attribute optimization approaches, utility-based Taguchi approach has been practiced in this work due to its commendatory properties like monotonicity and concavity. The utility-based elicitation methodology has been demonstrated for simultaneous optimization of two dependent variables of interest, i.e. adhesion strength and coating thickness of mullite–nickel coatings deposited by SST. The utility values based on the preference structure of these dependent variables have been analysed for process accretion by using Taguchi’s theory. Confirmation experiments assure the conceivability of the approach over the range of coating conditions exerted in the SST experimentation. The characterization of thus produced coatings illustrated formidable microstructure free from any major imperfections, besides conforming to the utility-based Taguchi results for the unified attribute function comprising the two response parameters under

Journal

Arabian Journal for Science and EngineeringSpringer Journals

Published: Jun 5, 2018

References

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