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Lecture 1: Mechanical Behavior of Nanoparticles and Nanotubes (Part 1)
-Mechanical properties of materials
-Nanoparticles and Nanotubes
Structure of nanoparticles and nanotubes
Mechanical properties of nanoparticles
Mechanical properties of carbon nanotubes
-Size Effects: Hall-Petch Equation
-Nanoparticle- and Nanotube-Reinforced Composites
Structure of nanocomposites
Mechanical properties of nanocomposites
Lecture 2: Mechanical Behavior of Nanoparticles and Nanotubes (Part 2)
Lecture 3: Size Effects
- High yield strength (sy) and hardness
- Transition from a positive slope to a negative one in Hall-Petch relation (size-dependent)
- High ductility for both nano-metals and ceramics
- Strain rate sensitivity at room temperature
Lecture 4: Nanoparticle and Nanotube Reinforced Composites
- CNTs are interesting new materials
- MWNTs have higher elastic modulus (E) than SWNTs
- E depends on diameter (d è E )
- MWNT: E ~1 TPa, sy = 63 GPa
- CNTs buckle under compressive stress