Composite Materials

Self-healing and self-cleaning nanocomposite coatings

Song K., Arizona State University, US

This work reports on the healing of translucency, roughness, nanoindents, and shallow scratches in polymer/nano-particle composites. Mechanical loading were applied on polymer/self-healing additive/nano-particle composites. The concentration of nano-particles and self-healing additives were optimized to 1.0 [...]

Magnetic properties of ceramic composite using melt process

Lee S-H., Sunmoon University, KR

The critical transition temperature and critical current density of YBaCuO single crystal bulk were measured after heat diffusion treatment in nano powder. The superconducting start temperature was found to high at 91.62K. It can be [...]

Optimising the Properties of Polymer Composites: Low Weight/ High Strength Composites for Commercial Applications

Hayward M., Johnston J., Dougherty T., de Silva K., Victoria University of Wellington, NZ

Vinyl ester polymers have an excellent resistance to harsh and corrosive environments. This results in their wide-spread use as a polymer composite material for multiple applications in various industries such as marine materials, swimming pools [...]

Effect of CNT Morphology and Alignment on the Interfacial and the Elastic Properties of Nanocomposites

Alian A.R., Meguid S.A., University of Toronto, CA

Carbon nanotubes (CNTs) are typically curved, agglomerated and aggregated as a result of van der Waal interactions and electrostatic forces. It has been proven experimentally that CNT morphology and alignment affect the mechanical, electrical, and [...]

Novel Structure, Properties, and Synthesis of Refractory Carbides

Dyatkin B., Laskoski M., Rock B.Y., Qadri S., Kolel-Veetil M., Keller T.M., Gamache R.M., U.S. Naval Research Laboratory, US

Ultra-high temperature ceramics (UHTCs) and refractory carbides with high hardness and oxidation resistance demonstrate significant promise in armor and hypersonic engine applications. However, to date, they have been too brittle and expensive to widely implement [...]

Effect of nucleating agents on magnetic properties and relaxation in magnetite-based glass-ceramics prepared by controlled crystallization of borosilicate glasses

Sandu V., Cimpoiasu E., Greculeasa S., Kuncser A., Kuncser V., Nicolescu M.S., Kuncser A., Kuncser V., U.S. Naval Academy, US

We investigated the specific magnetic structure and magnetic relaxation phenomena in magnetite nano-entities grown in a glassy matrix by controlled crystallization of Fe-containing borosilicate and boroaluminosilicate glasses in the presence of two types of nucleating [...]

Polyurethane Nanocomposite for Fireproof Applications to reduce toxic gases

Mena M.E., Estrada R., Torres L.A., Universidad Iberoamericana Ciudad de Mexico, MX

Rigid polyurethane foams have a wide range of applications such as insulation, packaging, among others, due to their excellent properties. However, as most organic materials are moderately flammable and the flame propagation is very fast; [...]

Exploring the Interface: Improving the Mechanical Properties of Silicon Nitride Fibre – Polymer Composites

Hayward M., Johnston J., Dougherty T., deSilva K., Victoria University of Wellington, Nuenz Limited, NZ and NZ Product Accelerator, NZ

Interfacial interactions between a fibre reinforcement and a polymer matrix are a fundamental contributor towards the mechanical, thermal and electrical properties of fibre-polymer composites. Strong adhesion at the phase boundary facilitates efficient property transfer between [...]