US Dept of Commerce
Product released at
2008 MRS Fall
meeting in Boston,
MA
COPYRIGHT, 2009
NANOMECH, LLC
Dr. Wenping Jiang, NanoMech’s
Chief Engineer
NanoMech, LLC
535 W. Research Blvd., Suite 135
M/S 100
Fayetteville, AR 72701
Ph. (479) 527-6826 Fax (479) 571-8814
NanoSpray® Coating System
Mechanism of
electrostatic
spray coating
(ESC) of HA
nanoparticles
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HA Coating Results
EDX showing Ca/P~1.67
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Innovations
Multifunctional Coatings are Realized Through
Electrostatic Spray Coating of Nano / Micro Particles
Followed by Application Specific Binding Processes
  Coating configurations
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Single material / phase particulate layer.
Multi-phase layered.
Combinatorial 3D matrix.
Patterned coating using screen printing; add configuration variable to
combinatorial approach.
–  True 3D coating approach.
–  Realization of surface texturing for biomimetic / bio-inspired schemes
such as “self-cleaning”.
  Coating binders:
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Chemical vapor infiltration.
Laser binding.
Microwave sintering.
IR belt furnace (e.g. for polymer or low temp coatings).
Other radiation sources.
Note- A particle represents a function and thus, combinatorial approach offers
opportunity for multifunctionality.
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Why ESC?
  Particles can be easily charged.
  Fast coating process
  Charged particles follow electromagnetic lines of force and do not
clump together.
  Conformal coating on the target surface.
  Novel phases can be built in the ESC particulate coating process.
  Coating thickness can be controlled.
  Easier to coat combinatorial coating using nano and micro particles
rather than growing by conventional vapor deposition techniques.
  Coating of complex geometry surface parts.
  Low investment and maintenance.
  Good manufacturing feasibility.
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ESC Configurations for Production
Scale
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