Improved Mechanical Properties by Nanoreinforced Ceramic Composite HVOF Coatings

Author:

Turunen Erja1,Varis Tommi2,Keskinen Jari3,Fält Teppo4,Hannula Simo Pekka5

Affiliation:

1. VTT

2. VTT Industrial Systems

3. VTT Technical Research Centre of Finland

4. Helsinki University of Technology

5. Aalto University

Abstract

Special nanoreinforced ceramic composite coatings were produced. Dense nanostructured alumina and chromia coatings alloyed with various nanofraction elements such as Ni, NiO, ZrO2 and SiC were manufactured by HV2000 HVOF spraying. As a result coatings with nearly 100% improvements relative fracture toughness, were produced.

Publisher

Trans Tech Publications Ltd

Reference15 articles.

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2. A. Kulkarni, J. Gutleber, S. Sampath, A. Goland, W.B. Lindquist, H. Herman, A.J. Allen, B. Dowd: Materials Science and Engineering A369 (2004) pp.124-137.

3. E. Turunen, T. Varis, S-P. Hannula, A. Kulkarni, J. Gutleber, A. Vaidya, S. Sampath, H. Herman: Materials Science and Engineering, A 415 (2006) pp.1-11.

4. S. -P. Hannula, J. Koskinen, E. Haimi, and R. Nowak: Encyclopedia of Nanoscience and Nanotechnology, vol. 5, H.S. Nalwa, Ed, American Scientific Publishers, USA, 2004, p.131.

5. F. A. Mohammed, Y. Li: Mater. Sci. Eng., Volume 298A (2001), pp.1-15.

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