This paper describes an investigation of nano-Al2O3 powders reinforced ceramic coatings, which has included NiCrAl and Al2O3+13%wt.TiO2 coats pre-produced by atmosphere plasma spraying, implemented by laser sintering. Commercial NiCrAl powders were plasma sprayed onto 45 Steel substrates to give a bond coat with thickness of ∼100μm. The 600μm thick Al2O3+13%wt.TiO2 based coating was also plasma sprayed on top of the NiCrAl bond coat. With 2.5kw continuous wave CO2 laser, nano-Al2O3 ceramic powders were laser sintered on the based Coatings. The micro structure and chemical composition of the modified Al2O3+13%wt.TiO2 coatings were analyzed by such detection devices as scanning electronic microscope (SEM) and x-ray diffraction (XRD). Microhardness, wear resistance and corrosion resistance of the modified coatings were also tested and compared with that of the unmodified. The results show that the crystal grain size of Al2O3 had no obvious growth. In addition, due to the nanostructured Al2O3 ceramic phases, the coatings exhibited higher microhardness, better wear resistance and corrosion resistance than those unmodified counterparts. The complex process of plasma spraying with laser sintering as a potential effective way of the application of ceramic nano materials was also simply discussed and summarized in the end.
Skip Nav Destination
2007 First International Conference on Integration and Commercialization of Micro and Nanosystems
January 10–13, 2007
Sanya, Hainan, China
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4265-7
PROCEEDINGS PAPER
Laser Sintering of Nano-Al2O3 Powders on Plasma Sprayed Ceramic Based Coatings Available to Purchase
Lida Shen,
Lida Shen
Nanjing University of Aeronautics and Astronautics, Nanjing, China
Search for other works by this author on:
Yinhui Huang,
Yinhui Huang
Nanjing University of Aeronautics and Astronautics, Nanjing, China
Search for other works by this author on:
Zongjun Tian,
Zongjun Tian
Nanjing University of Aeronautics and Astronautics, Nanjing, China
Search for other works by this author on:
Guoran Hua
Guoran Hua
Nantong University, Nantong, China
Search for other works by this author on:
Lida Shen
Nanjing University of Aeronautics and Astronautics, Nanjing, China
Yinhui Huang
Nanjing University of Aeronautics and Astronautics, Nanjing, China
Zongjun Tian
Nanjing University of Aeronautics and Astronautics, Nanjing, China
Guoran Hua
Nantong University, Nantong, China
Paper No:
MNC2007-21215, pp. 1339-1344; 6 pages
Published Online:
June 8, 2009
Citation
Shen, L, Huang, Y, Tian, Z, & Hua, G. "Laser Sintering of Nano-Al2O3 Powders on Plasma Sprayed Ceramic Based Coatings." Proceedings of the 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems. First International Conference on Integration and Commercialization of Micro and Nanosystems, Parts A and B. Sanya, Hainan, China. January 10–13, 2007. pp. 1339-1344. ASME. https://doi.org/10.1115/MNC2007-21215
Download citation file:
6
Views
Related Proceedings Papers
Related Articles
The Creep Damage Behavior of the Plasma-Sprayed Thermal Barrier Coating System NiCr22Co12Mo9-NiCoCrAlY-ZrO 2 /7%Y 2 O 3
J. Eng. Gas Turbines Power (October,1999)
Deformation of Plasma Sprayed Thermal Barrier Coatings
J. Eng. Gas Turbines Power (July,2000)
Thermal Spray Coating on Polymeric Composite for De-Icing and Anti-Icing Applications
J. Manuf. Sci. Eng (October,2021)
Related Chapters
Research Protocol for Approval of Drift-Reducing Adjuvants for Dicamba in Brazil
Pesticide Formulation and Delivery Systems: 42nd Volume, Building the Future of Agrochemicals for 2030 and Beyond
A Calibrated Method for Crystallinity Determination of Hydroxylapatite Coatings
Characterization and Performance of Calcium Phosphate Coatings for Implants
Machine Vision Based Spraying Control of Agricultural Machinery
International Conference on Computer Technology and Development, 3rd (ICCTD 2011)