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Browse Category: Materials & Chemicals > Composites


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Electromagnetic Interference Shielding Composites

Prof. Alexander Balandin, Dr. Fariborz Kargar and colleagues from the University of California, Riverside have developed novel composites with fillers comprised of graphene and/or quasi-1D van der Waals materials that provide efficient EMI shielding. These unique composites can block EM radiation and are also electrically insulating. These composites may be added to adhesives used in the packaging of electronic components so that the resulting electronic devices will have EMI shielding properties. This technology ensures that EMI shielding is achieved so that a variety of electronics operate reliably and without detrimental effects on human health. Fig 1: Coefficients of absorption for composites made with the UCR graphene-based composition.  

A Thin Film Nitinol Neurovascular Covered Stent For Small Vessel Aneurysms

UCLA researchers in the Department of Pediatrics have developed a thin and flexible stent that can be implanted in small vessels in the neurovascular system. Normal 0 false false false EN-US ZH-CN X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri",sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

Enhanced Block Copolymer Self-Assembly

Brief description not available

Zinc Nanocomposites And Stents For Functional Applications

UCLA researchers in the Department of Mechanical Engineering have developed a method to manufacture zinc-based metal matrix nanocomposites (MMNCs) for functional applications, such as stents.

Controlled And Efficient Synthesis Of Inorganic-Organic Composite Cementation Agents With Enhanced Strain Capacity

Researchers in the UCLA Department of Civil and Environmental Engineering, Department of Chemical Engineering and Department of Chemistry and Biochemistry have developed an energy-saving approach to controllably fabricate cemented solids with hybrid microstructures and enhanced properties.

Scalable Manufacturing of Copper Nanocomposites with Tunable Properties

UCLA researchers in the Department of Mechanical and Aerospace Engineering have developed a cost-effective method to produce copper-based nanocomposites with excellent mechanical, electrical and thermal properties.

High Performance Platinum-Based Catalyst Combined with Carbon Support Engineering

UCLA researchers in the Department of Materials Science and Engineering have developed a fuel cell catalyst system comprised of platinum-based alloys with a novel carbon support. The fuel cell has improved mass activity targets and increased stability.

Composite Membranes For Energy Storage Devices

Dendritic growth inside a high capacity electrochemical system can initiate self-discharge and a very dangerous set of reactions that result in cell temperatures reaching >500 °C within seconds of internal shorting. Thus, cell components are often designed with shut-off features that engage after shorting occurs and cell temperature begins to rise, but before a threshold temperature is reached (e.g. runaway temperature). For example, some separator membranes can be designed to collapse in response to high temperatures, blocking ion-flow and effectively shutting off the cell. However, this process is irreversible and will not prevent thermal runaway if a critical temperature is reached before proper shutoff can occur. Additionally, such membrane will have little effect if the short circuit occurs from separator penetration by a metallic dendrite. Reversible thermo-responsive membranes have been developed, but share similar drawbacks during internal shorting and rapid self-discharge.

A Method Of Making Carbon Coated Oxides As High-Performance Anode Materials

UCLA researchers in the Department of Materials Science and Engineering have developed a carbon-coated silicon nanoparticle-based electrode material for lithium-ion batteries with high energy density and long lifetime.  They have also developed a scalable fabrication method for this material.

Micro- and Nanocomposite Support Structures for Reverse Osmosis Thin Film Membranes

UCLA researchers in the Department of Civil and Environmental Engineering have invented a novel nanofiltration (NF) and reverse osmosis (RO) composite membrane for water desalination applications.

Novel Multi-Scale Pre-Assembled Phases of Matter

UCLA researchers from the Departments of Chemistry and Physics have developed a novel method for creating multi-scale pre-assembled phases of matter with customizable symmetries, topologies, and degrees of order and disorder.

Highly Durable and Active Fuel Cell Electro-Catalyst Designed with Hybrid Support

UCLA researchers in the Department of Materials Science and Engineering have demonstrated an innovative electrocatalyst design with a hybrid support for fuel cells that can dramatically increase the lifetime of the catalyst, as well as its activity.

Robust, Ultra-Flexible, Micro-Encoded Ferromagnetic Tape for Bioseparation and Assembly

Researchers at the UCLA Department of Bioengineering have developed methods to embed electroplated magnetic materials within elastomeric materials and use these flexible magnetic hybrid materials for biological applications.

Conductive and Elastic Nanocellulose Aerogels

Researchers at the University of California, Davis have developed conductive nanocellulose aerogels as building blocks for mechanical strain sensors and coaxial aerogel fibers for cryo- and thermo-protective insulation.

High Stability PtNiX-M Electrochemical Catalyst

UCLA researchers in the Department of Material Science and Engineering have invented a novel and highly stable platinum-based catalyst material for fuel cell technologies.

High Performance PtNiCuMo Electrochemical Catalyst

UCLA researchers in the Department of Materials Science and Engineering have developed multimetallic PtNiCuMo nano octahedral catalyst that has demonstrated greatly improved mass activity, specific activity, and stability for application in fuel cells.

Dynamic polymers based on siloxane exchange

Researchers at UCI have developed a novel method for generating malleable, recyclable polymers which have higher thermal stability than those previously reported..

Scalable And Inexpensive Production Of Polymer-Metal Nanocomposite By Thermal Drawing

UCLA researchers have developed a fabrication process for uniformly distributing metallic nanoparticles within polymer fibers.

Composite Foam

UCLA researchers in the Department of Mechanical and Aerospace Engineering have developed a novel composite foam for impact applications.

Robust Mesoporous Nife-Based Catalysts For Energy Applications

UCLA researchers in the Department of Chemistry and Biochemistry have used selective dealloying method to produce novel high-performance, robust, and ultrafine mesoporous NiFeMn-based metal/metal oxide composite oxygen-evolving catalysts.

3D Printer with Improved Selective Laser Sintering (SLS)

Three dimensional (3D) printer and rapid prototyping (RP) systems are currently used to quickly produce objects and to prototype parts using CAD tools. Most RP systems use an additive, layer-by-layer approach to building parts by joining liquid, powder, or sheet materials to form physical objects. Some of these RP systems through selective laser sintering amalgamate materials by heating them with lasers to generate 3D printed objects. Researchers at the University of California, Irvine have created a new 3D printer with improved selective laser sintering. The new 3D printer and process varies the composition of the materials in a 3D printed object thus creating an object with enhanced strength, conductivity, heat resistance and other enhancing properties.

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