Nanotechnology in Aerospace

[seminar class]

PRESENTED BY:
M. Meyyappan

---

[attachment=10511]
Nanotechnology:Aerospace Applications
Nanotechnology Areas of Interest to Aerospace Community
• High Strength Composites (PMCs, CMCs, MMCs…)
• Nanostructured materials: nanoparticles, powders, nanotubes…
• Multifunctional materials, self-healing materials
• Sensors (physical, chemical, bio…)
• Nanoelectromechanical systems
• Batteries, fuel cells, power systems
• Thermal barrier and wear-resistant coatings
• Avionics, satellite, communication and radar technologies
• System Integration (nano-micro-macro)
• Bottom-up assembly, impact of manufacturing
Nano-Reinforced Composites
Processing them into various matrices follow earlier composite
developments such as
- Polymer compounding
- Producing filled polymers
- Assembly of laminate composites
- Polymerizing rigid rod polymers
-
-
• Purpose
- Replace existing materials where properties can be superior
- Applications where traditionally composites were not a candidate
Benefits of Nanotechnology in Composite Development
Nanotechnology provides new opportunities for radical changes in composite functionality
• Major benefit is to reach percolation threshold at low volumes(< 1%) when mixing nanoparticles in a host matrix
• Functionalities can be added when we control the orientation of the nanoscale reinforcement
Multifunctionality in Materials
This always implies “structure +” since in most cases the major
function of a structure is to carry load or provide shape. Additional functions can be:
• Actuation controlling position, shape or load
• Electrical either insulate or conduct
• Thermal either insulate or conduct
• Health monitor, control
• Stealth managing electromagnetic or visible signature
• Self-healing repair localized damage