Composite Materials – Page 34 – TechConnect Briefs

Synthesis and Characterization of Perovskite Ca0.5Sr0.5MnO3 Nanoparticles in w/o-Microemulsions

López-Trosell A., Schomäcker R., TU Berlin, DE

In the present work, w/o-microemulsions were employed to produce nanoparticles of perovskite Ca0.5 Sr0.5 MnO3. The reaction inside the microemulsion droplets was achieved by addition of sodium hydroxide as co-precipitation agent. Afterward the precursor of [...]

Electromagnetic Containerless Processing of Single-walled Nanotube Reinforced Metal-Matrix Composites

Wilson K., Zeng Q., Barrera E., Bayazitoglu Y., Rice University, US

Single walled carbon nanotube (SWNTs) reinforced copper (Cu) matrix composites were produced by powder metallurgy (PM) and electromagnetic levitation methods. The nanotubes where first decorated with a Nickel coating using incipient wetting and then dispersed [...]

Investigation of Thermal and Mechanical Response of Nylon-6 Filaments with the Infusion of Acicular and Spherical Nanoparticles

Mahfuz H., Hasan M.M., Rangari V.K., Jeelani S., Tuskegee University, US

It has been demonstrated in recent years that infusion of nanoparticles in thermoset as well as in thermoplastic polymers can help improve the chemical, thermal, and mechanical properties significantly. The improvement in properties can be [...]

The Impact of Nano-Materials on Coating Technologies

Cayton R.H., Sawitowski T., Nanophase Technologies Corporation, US

Nanocomposite coatings are made by embedding nanocrystalline metal oxide particles in a polymer matrix. The benefits accrued by incorporating nanoparticles into a polymer matrix become economically driven when several advantageous properties are obtained simultaneously, compared [...]

Effect of Nanoclay Content on Mechanical Behaviour of TGDDM Epoxy Nanocomposites

Huong N.T.P., Crosky A., Qi B., Kelly D., Li D.C., The University of New South Wales, AU

Exfoliated nanocomposites based on tetraglycidyldiamino diphenylmethane (TGDDM) cured by diethyltoluene diamine (DETDA) reinforced with 1-20 phr of a commercial nanoclay (I30E) were prepared. The effect of the nanoclay content on the compressive modulus of the [...]

Polymeric Nanocomposites Enabled by Controlled Architecture Materials

Shefelbine T.A., Marx R.E., Nelson J.M., Longabach J.W., Brostrom M.L., Bucket M.I., 3M Corporate Research, US

This presentation will focus on the use of Controlled Architecture Materials (CAMs): block copolymers, telechelic, gradient and star branched polymers as additives to induce the exfoliation of nanoclays in thermoplastic resins. Conventional exfoliation methods include [...]

Nano Composites

Sol-Gel Synthesis and Structural Characterization of Nano-Composite Powder: NiAl2O4:SiO2

Muralidharan P., Prakash I., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN

Nano-composites are important class of materials because of many of their physical and chemical properties show particle size dependence. Nano-structured metal (Zn, Mg, Ca) aluminate, with spinel structure, dispersed in SiO2 glassy matrix materials are [...]

A Modeling Tool for Contact Probe Tests on Nano-Particle Filled Materials

Tseng K.K., Vanderbilt University, US

With the recent advances in nano-scale science and engineering, materials containing reinforcement with superior mechanical properties can be found in many advanced products. The accurate prediction of the mechanical properties of this class of composite [...]

A Novel Synthesis of Co@Au Nanoparticles and Characterization

Ban Z., O'Connor C.J., University of New Orleans, US

A homogeneous non-aqueous solution reactions method has been developed to prepare gold-coated cobalt (Co@Au) nanoparticles. After the sample was washed with 8% HCl, TGA, XRD, TEM, and magnetic measurements SQUID are utilized to characterize the [...]