The “scratch test,” which tests a material’s resistance to deformation, might be the oldest known way to assess a material’s hardness and strength. Engineers at MIT decided to determine what exactly the scratch does assess. Using butter as a benchmark material, they found that the test does not actually measure material strength. But it does measure something else that is important.
A team of researchers from the University of Arizona and Rensselaer Polytechnic Institute have increased the toughness of ceramic composites by more than 200% with the use of graphene reinforcements. The graphene additions arrest the formation of cracks in the ceramic, forcing them to change direction in three dimensions.
Proprietary zinc finger technologies from biotechnology giant Sigma-Aldrich have been licensed by Kraig Biocraft Laboratories, which plans to back further R&D efforts and potentially commercialize the silk polymers in textile and biomedical fields.
Keeping silver’s tarnish at bay is a never-ending job, and every polish removes some of the precious metal. In an attempt to solve this millenia-old problem, researchers at the University of Maryland are testing a protective coating so thin it can’t be seen. Using atomic layer deposition, they apply nanometer-thick layers of aluminum oxide.
Aldrich Materials Science, a technology offshoot of Sigma-Aldrich, this week announced the start of a collaboration with Agfa Materials to expand their offering of Orgacon conductive polymers for use in high technology applications. The material is geared toward use in applications requiring high conductivity, such as tandem junction solar cells.
A measurement device developed by Finland’s Numcore Oy is based on impedance tomography and produces a 3-D image in real time from the inside of pipelines and tanks used by the process industries. According to the company, the pulp and paper industry could benefit from its use by optimizing its utilization of broke, the discard paper produced from breaks in a continuous mill process.
Valued at more than $12 million, the full pilot-scale carbon fiber process line from New York-based Harper International is part of the DOE’s effort to reduce the cost of carbon fiber and introduce as a high-strength component for a greater variety of products, such as automobiles. The new line at Oak Ridge National Lab will involve the use of low-cost, renewable lignin as a precursor.
In 1997, the U. S Food and Drug Administration banned the decades-old practice of feeding meat and bone meal to livestock. To find a use for the nine billion pounds of now-useless protein meal, researchers have come up with a new process that uses the waste to create bioplastic.
The nuclear crisis in Japan has laid bare an ever-growing problem for the United States — the enormous amounts of still-hot radioactive waste accumulating at commercial nuclear reactors in more than 30 states. A state-by-state study of numbers obtained by the Associated Press finds that the U.S. has almost 71,862 tons of radioactive waste, now stored at power-plant sites.
A University of Pennsylvania research team was recently able to create high-quality graphene that is just a single atom thick over 95% of its area, using readily available materials and manufacturing processes that can be scaled up to industrial levels. The researchers demonstrate that single-layer-thick graphene can be reliably produced with CVD techniques at normal pressures if the metal sheets are smooth enough.
Prior to the NanoFlow’s development, extrusion die technology was limited to about a dozen layers from a single extruder. Guill says that the NanoFlow creates layer thicknesses in the micrometer to nanometer range, greatly advancing tubular product manufacturing.
Rare earths are a group of 17 minerals that are used in products such as flatscreen TVs and lightweight batteries for mobile phones and hybrid cars. China accounts for almost all production of rare earths, and now plans to tighten control over producers and restrict output in a five-year development strategy.
Until now, fusing two transparent plastic components together by laser welding has been impossible. Researchers in Germany have cleared this hurdle by choosing the right wavelength: 1700 nm. The process is still limited, but the benefits to lab-on-a-chip technology should be substantial.
Researchers in France have succeeded in creating a conductive layer on the surface of strontium titanate, a substance that has been heavily researched because of its good conductivity behavior when doped. Until now, however, interfaces between this and other oxides have been difficult to produce.
Krzysztof Matyjaszewski and colleagues at Carnegie Mellon Univ. and Kyushu Univ. in Japan have built a polymer that repairs itself again and again when irradiated with UV light. It’s the first-ever material to feature capped covalent bonds that repeatedly reattach, allowing even fully separated pieces to be fused back together.
The lithium-ion battery cell technology that is powering GM’s Chevrolet Volt, the first mass-produced plug-in hybrid electric vehicle, has reached a licensing agreement between LG Chem and the DOE lab that patented the cathode material. LG Chem contributes SRS separator safety technology with the Argonne-developed cells.
A research team at Syracuse Univ. has applied the concept of functionally graded materials to shape memory polymers. The polymers have previously been limited to two-way and three-way shape configurations. In the new process, sections of one shape memory polymer independently react to different temperature stimuli.
An unnamed manufacturer that produces actuator and sensing components for the touch screen market is reportedly the world’s first user of graphene in a commercial product. Angstron Materials, a maker of nano graphene platelets that is supplying the raw material for the new product, made the announcement.
A new carbon dioxide impregnation process has been pioneered in Germany that is able to carry nanoparticles, like pigments, inside plastics under high pressure. The CO2 dissolves quickly, but the pigment remains. Tests conducted with silica and pharmaceutical agents were also successful, suggesting new cutomization and drug delivery applications.
KIN-TEK’s new FlexStream SD is a gas dilution module designed to work with the FlexStream System. In the SD module, a variable portion of primary gas mixture from one or more FlexStream permeation modules is split off and re-diluted with matrix gas to create lower concentration mixtures.
Sonic Air Systems, Inc. has announced the availability of the Sonic COOL-AIR In-line Air Cooler, which delivers precisely controlled air temperatures from Sonic’s line of pressure blowers and high velocity air knife systems.
Guaranteeing the purity of bulk during continuous or specialty operation is difficult and requires accurate and fast detection of impurities and trace gases that may result from component failure or outgassing. Gas analyzers from AMETEK are designed to cover this need in several industries.
Every week, the small plastic bag filled with our collected plastic and metal tidbits—a partial fossil record of the consuming habits two American adults—hits the curb beside the cardboard. It's recycling day. But much of the plastic will never see the light of day again.
The NanoGrowth-Catalyst benchtop platform from Surrey NanoSystems incorporates nine of the top processes currently used in nanomaterials development. According to the vendor, it is the first platform to maintain vacuum from catalyst delivery to material growth.
Applied Analytics recently delivered units to measure chlorine and FeCl 3 in ethylene dichloride (EDC) to the largest manufacturer of PVC in the world. EDC is the first intermediate in the manufacturing of the PVC, but it’s undesirable in the finished product. Read the attached applications note for an explanation of Applied Analytics technology solution.