composites – TechConnect Briefs

Reinforced Ceramic Composites Fabricated From High-Char Yield Polymers

Butler T., Dyatkin B., Deese S.M., Laskoski M., U.S. Naval Research Lab, US

Advancements in high-speed propulsion systems have spurred demand for materials which can withstand the harsh conditions necessitated by this hypersonic travel. Ultra-high temperature ceramics (UHTCs) such as transition metal borides, nitrides, and carbides melt at [...]

Inkjet Printing of High κ-Dielectric Ceramic/Polymer Composite Thick Films

Mikolajek M., Binder J.R., Karlsruhe Institute of Technology (KIT), DE

Inkjet printing offers a high flexibility and therefore is increasingly gaining importance for the selective deposition of functional materials, for example in printed electronics. However, till today either particle based inks or inks based on [...]

In Situ Generated Turbostratic Graphite: A New Family of Self Lubricating Iron Based Composites

Binder C., Binder R., Binder C., Binder R., Consoni D.R., Hammes G., Schroeder R., Klein A.N., Binder C., Binder R., de Mello J.D.B., Schroeder R., Universidade Federal de Santa Catarina, BR

In this paper we present a new processing route able to produce a homogeneous dispersion of in situ generated, discrete solid lubricant particles in the volume of sintered steels produced by metal injection molding. Preliminary [...]

Investigation of interaction between graphene and steel using Raman Spectroscopy

Fushiwaki Y., Abdelkader A.M., Young R.J., University of Manchester, UK

The purpose of this study is to understand interaction between graphene and sheet steel by the use of Raman Spectroscopy. First of all, the graphene was put on the polished steel. Secondly, it was inspected [...]

Electrochemical and textural characterization of RuO2-SnO2-graphene under co-precipitation / hydrothermal conditions

Leng X., Zou J.P., Xiong X., He H.W., Central South University, CN

In this report, ternary composite of RuO2-SnO2-graphene with different input ratio of RuCl3, SnCl2 and graphene oxides were prepared by using co-precipitation / hydrothermal approaches followed by thermal treatment. SEM, TEM, and XRD were used [...]

Preparation of electrical conductive polymer/graphite oxide composites through the functionalization of graphite oxide sheets

Beyou E., Guimont A., Cassagnau P., Martin G., Sonntag P., Lyon1 University, FR

The preparation of polyethylene/graphite oxide composites exhibiting rheological and electrical percolation thresholds was accomplished by radical addition reactions onto the unsaturated system of graphite oxide sheets through the use of pentadecane and polyethylene in presence [...]

Advanced Aerospace Applications for Carbon Nanotube Materials

Schauer M.W., Nanocomp Technologies, Inc., US

The use of floating catalyst chemical vapor deposition to make carbon nanotube (CNT) materials for aerospace structures overcomes the need for dispersants, and allows for products that consist mostly of nanotubes. CNT-based material is currently [...]

Inducing Polymer Interphase Formation in the Composite at Low Nano-Carbon Loading

Song K., Minus M.L., Northeastern University, US

The nano-carbons used in this work are layered carbon nano-chips that exhibit platelet morphology and are able to slide with respect to each other. Both filled and unfilled poly(vinyl alcohol) (PVA) fibers were studied to [...]

Mechanical Properties of Reduced Graphene Polymer Composites

Xu P., Panchapakesan B., University of Louisville, US

In this paper, we report load transfer and mechanical properties of chemically derived single layer graphene (SLG) as reinforcements in poly (dimethyl) siloxane (PDMS) composites. Shear mixing reduced graphene sheets in polymers resulted in a [...]

Correlating electrical and structural properties in surface layer of carbon nanotube polymer composite

Pavlenko E., Tishkova V., Puech P., Bacsa W.S., CNRS and University of Toulouse, FR

We have recently shown that annealing of agglomerated carbon nanotubes on thermoplast polymers form surface composite films (70 micrometers) (1). This has been explained by preferential carbon nanotubes absorption of infrared radiation leading to local [...]