Nanolaminates and Microlaminates: Modeling and Characterization
Abstract
The author fabricated C/SiC laminates with layer thicknesses spanning two length scales (micrometer and nanometer) and fabricated particle-reinforced composites consisting of particles (cobalt and SiC) and polymer matrix (polysterene and epoxy) with particle diameters spanning these two scales. The laminates were made using the laser vapor deposition technique, while the particle-reinforced composites were made using either polymer synthesis or a resin transfer molding technique. The author characterized the ultrastructures of these composites using SEM and TEM, and measured their local and global properties using nanoindentation apparatus, DMA, and MTS testing equipment. The focus was on matrix-inclusion interface. Finally, they conducted modeling of such composites. This included modeling using classical micromechanics approaches which account for ultrastructural features such as interphase thickness and reinforcement shape and voids, and generalized continuum modeling using couple stress theory. The author also conducted a study of concentrated force problem using micromechanics-based continuum theory. This should be useful in interpreting nanoindentation data.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 06, 2003
- Accession Number
- ADA417791
Entities
People
- Iwona Jasiuk
- W. J. Lackey
Organizations
- Georgia Tech