SEMINAR NANO_STRUCTURE_COATING[1].pptx

1. NANO STRUCTURE
COATING
PRESENTED BY
KARTIKEY TRIVEDI
ROLL NO-1402940078

2. INTRODUCTION
• The Nano Structure films are the thin films which
are grown by deposition of pre formed cluster on a
substrate
• Grain size is of nanometre range, so material exhibit
interesting mechanical and physical property.

3. • Nano Structure Coating Composed of Phase mixture
which is used to improve physical and chemical
properties
• Coating are needed to prevent corrosion ,erosion
and also provide thermal insulation.
OBJECTIVE

4. PROCESS
• MAGNETRON SPUTTERING
• SOL-GEL METHOD
• ELECTRON BEAM VAPOUR DEPOSITION
• ELECTROPLATING
• PLASMA SPRAY
• LASER DEPOSITION

5. MAGNETRON SPUTTERING
• It is most commonly used method for sputter
deposition
• It uses powerful magnets to confine the glow
discharge
• The electron follow the helical path
around the magnetic field lines
• The sputtered atoms are neutrally
charged and so are unaffected
by magnetic trap

6. SOL-GEL METHOD
• It is a wet chemical technique
• Metal alkoxides and metal chlorides are typical
precursors
• Formation of metal oxide involves connecting the
metal centres with Oxo or Hydroxo bridge
• Drying and calcination

7. ELECTRON BEAM VAPOUR DEPOSITION
• Electron beam is generated by
tungsten filament
• Material is placed in the
graphite crucible
• Target anode is bombarded with
an electron beam
• These atoms precipitate into
solid form of anode material

8. ELECTROPLATING
• The anode should be
made from the same
material as the
electroplating metal
• The substrate is to be
made cathode
• Electrolyte must contain
ions of electroplating
metal

9. PLASMA SPRAY
• plasma spray gun comprises a copper anode and
tungsten cathode
• Coating material is fed in the form of powder
• Molten metal is transfer with a high velocity and
provide a coating

10. LASER DEPOSITION
• A high-power pulsed laser is focused on the target
• It has high deposition rate
• The challenge in this method to minimize the
particulate formation

11. PROCESS BARRIERS
• Material Availability
• Process Productivity
• Material and Manufacturing cost
• Thermal stability
• Multi lot properties data

12. APPROACH TO OVERCOME
BARRIER
• Application driven research
• Choice of processing parameter
• Selection of material and deposition
parameter
• Establishment of scientific drivers

13. ADVANTAGE
• Wear Resistance
• Thermal barrier
• Erosion resistance
• Crack resistance

14. APPLICATION
• AUTOMOTIVE INDUSTRIES
• AVIATION INDUSTRIES
• TURBINE BLADES
• SOLER CELL

15. REFERENCES
• http://www.wtec.org/loyola/nano/us_r_n_d
• Wadley research group. University of Virginia

16. Thank You