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Development of Nano‐reinforced HVOF Sprayed Ceramic Coatings
Author(s) -
Turunen E.,
Keskinen J.,
Heczko O.,
Lintunen P.,
Gustafsson T.,
Ge Y.,
Arponen M.,
Hannula SP.
Publication year - 2006
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200600047
Subject(s) - materials science , nanocrystalline material , thermal spraying , ceramic , nanocomposite , coating , composite material , grain size , composite number , nano , ceramic composite , metallurgy , nanotechnology
HVOF spraying has been demonstrated to produce dense ceramic coatings with improved density and mechanical properties compared to the conventional plasma sprayed ceramic coatings. Nanocrystalline, nanocomposite coatings have been found to offer improved mechanical properties compared to their conventional counterparts. In this paper we describe the development of nanocrystalline Al 2 O 3 composite coatings, where the grain size of Al 2 O 3 has been decreased and a few percents of nanostructured alloying component have been added in order to toughen the coating.