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Title

Microstructural Investigation of BaTiO3 Plasma Sprayed Coating Deposited by Splash and Disk-Like Splats

Year: 1397
COI: JR_JEFM-2-1_001
Language: EnglishView: 371
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Authors

A.H. Pakseresht - Institute of Materials and Energy, Meshkin Dasht, Iran

Abstract:

In the thermal spray process,  particulate materials can be melted  by plasma atmosphere due to its high local temperature from 8700 ◦C to 15,000 ◦C. Therefore, the material powders turn into droplets after being melted by injection into the hot flame. Molten droplets are accelerated toward a substrate and form the splats which quickly solidify; finally, the film is formed by pile-up splats. Splat morphology and post treatment can determine the microstructure, mechanical and physical properties of the coating. In this study, BaTiO3 films were deposited onto a mirror polished stainless steel substrates kept at room temperature and 500 ◦C. At the elevated temperatures, the desorbtion of adsorbates and condensate at the substrate surface are the most important factor which change the morphology of the  splats, from irregular- splash morphology to disk-like shape. Splat morphology can determine sprayed film microstructure and effect on the coating properties. The morphology of individual splats and the post treated films were studied using scanning electron microscopy. Results indicated that the porosity in the film produced at room temperature was higher than that in the film deposited on the heated substrates. Also, results show post heat treatment can improve physical and mechanical properties of the sprayed coating.

Keywords:

Paper COI Code

This Paper COI Code is JR_JEFM-2-1_001. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/897105/

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Pakseresht, A.H.,1397,Microstructural Investigation of BaTiO3 Plasma Sprayed Coating Deposited by Splash and Disk-Like Splats,https://civilica.com/doc/897105

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  • A. H. Pakseresht, A. H. Javadi, E. Ghasali, A. Shahbazkhan, ...
  • A. H. Pakseresht, A. H. Javadi, M. Bahrami, A. Simchi, ...
  • A. H. Pakseresht, R. S. Razavi, M. R. Loghman-Estarki, Hershey, ...
  • M. Nejati, M. R. Rahimipour, I. Mobasherpour and A. H. ...
  • A. Keyvani, M. Saremi, M.H. Sohi, J. Alloys Compd., 506(2015), ...
  • A. H. Pakseresht, M.R. Rahimipour, M.R. Vaezi, M. Salehi, Int. ...
  • A. H. Pakseresht, M.R. Rahimipour, M.R. Vaezi, M. Salehi, Appl. ...
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  • A. T. T. Tran, M. M. Hyland, J. Therm. Spray ...
  • P. Ctibor, H. Ageorges, J. Sedlacek, R. Ctvrtlik, Ceram. Int., ...
  • J. Cedelle, M. Vardelle, P. Fauchais., Surf. Coat. Technol., 201(2006), ...
  • H. R. Salimijazi, J. Mostaghimi , T. Coyle, S. LauCY ...
  • A. H. Pakseresht: Production, Properties, and Applications of High Temperature ...
  • A. Jama-Seyed, M. R. Derakhshandeh, H. Rajaei, A. H. Pakseresht., ...

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Type of center: پژوهشگاه دولتی
Paper count: 1,394
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COI stands for "CIVILICA Object Identifier". COI is the unique code assigned to articles of Iranian conferences and journals when indexing on the CIVILICA citation database.

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