Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 29, Issue 16, Pages 3349-3353Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2009.07.010
Keywords
Alumina; Zirconia; HVOF; Solution precursor spray
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Funding
- U.S. Office of Naval Research [N00014-02-1-0171]
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For the first time, the solution precursor high-velocity oxy-fuel spray process was used to deposit Al(2)O(3)-ZrO(2) ceramic coatings. X-ray diffraction analysis and transmission electron microscopy characterization show that the as-sprayed coating is composed of mixed nanocrystalline ZrO(2) and gamma-Al(2)O(3) as well as amorphous phases. The as-sprayed coating consists of ultrafine splats with diameters ranging from 2 to 5 mu m. Few spherical particles, hollow-shell structures are also observed on the coating surface. Polished cross-section shows that the coating is quite dense with a thickness of 40 mu m. (C) 2009 Elsevier Ltd. All rights reserved.
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