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Development of Nanostructured Al2O3-Ni HVOF Coatings

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Abstract:

HVOF thermal spraying has been developed to deposit dense Al2O3-coatings for improved protective properties. As compared to generally used plasma sprayed coatings HVOF coatings can be prepared much denser and thus are better suited for applications where protective properties of the coating are needed. In this paper we describe the development of HVOF spraying technologies for nanocrystalline Al2O3- and Al2O3-Ni-coatings. The microstructure and the mechanical properties of these novel coatings are reported and compared to a conventionally processed Al2O3-coating.

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Periodical:

Key Engineering Materials (Volumes 317-318)

Pages:

539-544

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.317-318.539

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Online since:

August 2006

Authors:

Simo Pekka Hannula, Erja Turunen, Jari Keskinen, Tommi Varis, Teppo Fält, Tom E. Gustafsson, Roman Nowak

Keywords:

Aluminum (Al), Mechanical Property, Microstructure, Nanocomposite, Nickel Ni, Thermal Spraying

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

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