FP7 NMP/INCO Brokerage Event Warsaw, 17-18 September 2009 Dr Marcin Adamiak marcin.adamiak adamiak@polsl.pl http://www.imiib.polsl.pl www.imiib.polsl.pl/ Institute of Engineering Materials and Biomaterials Silesian University of Technology,, GliwiceG liwice, Poland
SILESIAN UNIVERSITY Surface modification OF TECHNOLOGY of engineering GLIWICE, materials by POLAND PVD coatings 2 2
Dr SILESIAN Marcin Adamiak UNIVERSITY OF TECHNOLOGY GLIWICE, POLAND
Laser surface treatment of multicrystalline silicon for enhancing optical properties Leszek A. Dobrzański, Gliwice, Poland Laser surface treatment of multicrystalline silicon for photovoltaic application Prof. L.A. Dobrzański A. Drygała, a, K. Gołombek ombek,, P. Panek, E. Bielańska, P. Zięba Institute of Engineering Materials and Biomaterials Silesian University of Technology,, GliwiceG liwice, Poland
Laser surface treatment of multicrystalline silicon for enhancing optical properties Leszek A. Dobrzański, Gliwice, Poland Interaction between the incident sunlight and planar surface
Laser surface treatment of multicrystalline silicon for enhancing optical properties Leszek A. Dobrzański, Gliwice, Poland The influence of surface texture on light reflection
Laser surface treatment of multicrystalline silicon for enhancing optical properties Leszek A. Dobrzański, Gliwice, Poland Laser surface treatment of multicrystalline silicon laser beam wafer after laser treatment wafer before laser treatment
Laser surface treatment of multicrystalline silicon for enhancing optical properties Leszek A. Dobrzański, Gliwice, Poland Results a) b) c) 100µm 100µm 100µm SEM images of multicrystalline silicon surface a) after saw damage etching but before laser texturisation, b) with laser texture in the form of parallel grooves c) with laser texture in the form of perpendicular grooves
Laser surface treatment of multicrystalline silicon for enhancing optical properties Leszek A. Dobrzański, Gliwice, Poland b) a) 100µm 100µm SEM images of multicrystalline silicon surface after laser texturisation and 20 min etching with texture in the form of a) parallel grooves b),c) perpendicular grooves c) 100µm
Laser surface treatment of multicrystalline silicon for enhancing optical properties Leszek A. Dobrzański, Gliwice, Poland 60 50 before laser texturization after laser texturization after laser texturization and 10 min etching after laser texturization and 20 min etching Results 40 R [%] 30 20 10 0 300 400 500 600 700 800 900 1000 1100 1200 1300 λ [nm] Reflection curves for wafers with texture in the form of perpendicular grooves
Laser surface treatment of multicrystalline silicon for enhancing optical properties Leszek A. Dobrzański, Gliwice, Poland FP7 NMP/INCO Brokerage Event Warsaw, 17-18 September 2009 Surface modification of engineering materials by PVD nano-coatings deposition Institute of Engineering Materials and Biomaterials Silesian University of Technology,, GliwiceG liwice, Poland
Hard and Wear-Resistant coatings applications
Decorative coatings application
Coating Advantages and Usage Cutting The hard coatings reduce the abrasive, adhesive and crater wear on the tools for conventional wet, dry and high speed machining. Modern coating technology reduces ARC droplets and the friction between chip and tool.
Coating Advantages and Usage Tribology Hard coatings solve tribological problems with machine components that can be coated at temperatures of 200-500 C. Due to the hardness (up to 36 GPa), abrasive wear is reduced. This leads to higher reliability for dry operations and environmen -tally damaging lubricants can be replaced.
Coatings and Substrates Coating composition Process type TiN PVD Ti(C,N) PVD Ti(Al,N) PVD TiN+(Ti,Al,Si)N+TiN PVD TiN+multi(Ti,Al,Si)N+TiN PVD TiN+(Ti,Al,Si)N+(Al,Si,Ti)N PVD TiN+TiC+TiN PVD Ti(C,N)+TiN CVD Ti(C,N)+Al 2 O 3 +TiN CVD Ti(C,N)+Al 2 O 3 +TiC CVD TiN+Al 2 O 3 CVD TiN+Al 2 O 3 +TiN CVD TiN+Al 2 O 3 +TiN+Al 2 O 3 +TiN CVD TiC+Ti(C,N)+Al 2 O 3 +TiN CVD Substrates High Speed Steels Cemented Carbides Cermets Si 3 N 4 Ceramics Al 2 O 3 +ZrO 2 Ceramics Al 2 O 3 +TiC Ceramics Al 2 O 3 +SiC (w) Ceramics
a) b) Surface topography of the TiN coating deposited on HSS (coating deposition conditions: a) substrate bias 0V, b) substrate bias 200V).
Structures of the coatings a) b) Fracture of the: a) Ti/TiAlN x 1, b) Ti/CrN x 150 coatings 19
a) b) Fracture of the TiN coating deposited on HSS (coating deposition conditions: a) substrate bias 0V, b) substrate bias 200V).
Structures of the coatings a) b) Fracture of the: a) Ti/CrN x 15, b) TiAlN/Mo x 15 coatings 21
Chemical composition Changes of concentrations of constituents of the Ti/TiAlN x 15 coating and of the substrate materials 22
Cutting ability Wear VB [mm] 0,35 0,3 0,25 0,2 0,15 0,1 0,05 y = 0,0007x - 0,009x + 0,0649x R = 0,9982 y = 3E-05x - 0,0005x + 0,0184x R = 0,9779 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 uncoated TiN+Al 2O3 Time t [min]
Finite Element Methods model - results Distribution of the simulated compression stresses in the TiN coating Coating thickness t=10 µm, process temperature 540 C, specimen distance from the magnetron disk 125 mm σ max =944 MPa Coating thickness t=2,2 µm, process temperature 500 C, specimen distance from the magnetron disk 125 mm σ max =1334 MPa
FP7 NMP/INCO Brokerage Event Warsaw, 17-18 September 2009 Surface modification by laser surface treatment LST Amorphous and nanocrystaline magnetic composite materials Metal Matrix Composite, Polymer Matrix composites Computational Material Science (Artificial neural networks, FEM, Fractal Analysis) Powder metallurgy and Metal Injection Moulding Microstructural characterisation by LM, SEM, TEM, XRD, EBDS, WDS, EDS Other characteristics
Prof.L.A.Dobrzański M.Dr HC DIRECTOR INSTITUTE OF ENGINEERING MATERIALS AND BIOMATERIALS SILESIAN UNIVERSITY OF TECHNOLOGY GLIWICE,POLAND PRESIDENT WORLD ACADEMY OF MATERIALS AND MANUFACTURING ENGINEERING Institute of Engineering Materials and Biomaterials Silesian University of Technology,, GliwiceG liwice, Poland
Thank you very much for your kind attention Dr M. Adamiak