Reinforcement of metal with liquid-exfoliated inorganic nano-platelets
Abstract
We have prepared metal matrix composites of a pewter alloy filled with liquid-exfoliated Molybdenum Telluride (MoTe2) nano-platelets. The combination of MoTe2 and pewter was chosen due to their near-identical densities, thus reducing the scope for buoyancy-induced separation during melt mixing. The addition of nanofiller results in a doubling of the Young's modulus, Y, for a volume fraction, Vf, of <1% MoTe2, corresponding to a reinforcement of dY/dVf = 110 GPa. We find that this degree of reinforcement to be reasonably consistent with that predicted by a simplified version of Halpin-Tsai theory.
- Publication:
-
Applied Physics Letters
- Pub Date:
- October 2013
- DOI:
- 10.1063/1.4825279
- Bibcode:
- 2013ApPhL.103p3106M
- Keywords:
-
- mixing;
- molybdenum compounds;
- nanocomposites;
- nanofabrication;
- particle reinforced composites;
- tin alloys;
- Young's modulus;
- 81.16.-c;
- 81.40.Jj;
- 62.20.de;
- Methods of nanofabrication and processing;
- Elasticity and anelasticity stress-strain relations;
- Elastic moduli