| Composite material (240) |  |
| Nacre (22) | |
| Reinforced plastic (8) | |
| Syntactic foam (6) | |
| Composite material (240) | |
| Nacre (22) | |
| Reinforced plastic (8) | |
| Syntactic foam (6) | |
Plane designs will make more use of carbon composites and, in the future, carbon nanofibres. Air traffic control and airport management will also be revolutionised as digital technology makes aircraft easier to manage.
Another project partner a supplier of advanced composites to the aerospace defence and automotive sectors sought to identify a milling strategy that would produce the optimal surface finish
The Refresh water-bag is a composite of modules which can combine to form a 20m-long,
All that may soon change thanks to a new construction technology known by its acronym Preco-Beam (which stands for Prefabricated Enduring Composite beams based on innovative shear transmission.
By combining steel and concrete in prefabricated composite structures with reinforced concrete slabs, the European union (EU)- funded Preco-Beam project found a way to shave months off construction times
they used data derived from the World health organization Composite International Diagnostic Interview Short-Form, or CIDI-SF,
so that it binds strongly with a reinforcing polymer to make a new type of tough composite material
and stabilize the sulfur the researchers used amylopectin a polysaccharide that s a main component of corn starch. he corn starch can effectively wrap the graphene oxide-sulfide composite through the hydrogen bonding to confine the polysulfide among the carbon layerssays Hao Chen
Similar sulfur-polyaniline composites have previously been synthesized in a ore-shellstructure but the new method provides an internal void within the polymer shell called a olk-shellstructure. hen the lithium-sulfur battery was discharged fully the volume of the sulfur expanded dramatically to 200 percent.
The researchers led by Rice graduate student Changsheng Xiang produced thin films of the composite material by solution casting GNRS treated with hexadecane and TPU a block copolymer of polyurethane that combines hard and soft materials.
The GNRS geometry makes them far better than graphene sheets for processing into composites Tour says.
The researchers point out the work is a tarting point for exploring the composites made from GNRS and other transition metal oxides for lithium storage applications.
or more in size, says Hone. his strength will be invaluable as scientists continue to develop new flexible electronics and ultrastrong composite materials.
or ultrastrong composites that could replace carbon fiber. Or, the researchers speculate, a science fiction idea of a space elevator that could connect an orbiting satellite to Earth by a long cord that might consist of sheets of CVD graphene,
Its composite-bladed turbine starts generating electricity at a minimum wind speed of 1. 7 meters (5. 6 ft) per second,
#ISAAC robot joins NASA to weave advanced composites The robot revolution continues at NASA this month as its Langley Research center in Hampton,
Virginia prepares to bring its Integrated Structural Assembly of Advanced Composites (ISAAC) robot online. One of only three robots like it in the world,
it will be formally commissioned on January 26 before being put to work making lighter, stronger composite components for aerospace vehicles.
but fabricating composites was not one of its strengths. What was needed was a versatile, flexible machine that can change functions quickly.
According to NASA, more conventional composite manufacturing requires these ribbons to be laid down at one of three angles 0 degrees, 45, or 90.
NASA says that this versatility will not only help in creating better composites but it will also speed up the prototyping process As well as ISAAC begins work on the Aeronautics Research Mission Directorate Advanced Composites Project and the Space technology Mission Directoratecomposites for Exploration Upper Stage,
it will not only be able to create scale models for wind tunnel tests, but even fan blades for the wind tunnel itself.
Their approach relies on adding collagen to the phosphoric acid binder solution to create a composite material with the calcium phosphate,
They printed scaffolds using the composite material on an adapted 3d Systems ZPRINTER 450 and subjected them to a series of laboratory tests.
often mixed with carbon fibers to form composites. Some 50%of the new Airbus a350 jet, for example, will be made from composites.
Yet until now, none of this thermoset plastic could be recycled. The potential impact here is said phenomenal
Beyond replacing thermoset-based composites in current technology, Dr Hedrick sees the potential for many more innovative applications.
The exoskeleton is made out of cuticle a composite of the natural polymer chitin and silklike strands of a rubbery substance called resilin.
It opens unique possibilities for 3d imaging and exact modeling of geological materials in oil and gas exploration, composite materials, fuel cells and electronic assemblies.
Our electronic whiskers consist of high-aspect-ratio elastic fibers coated with conductive composite films of nanotubes and nanoparticles.
and better photochromic compounds and composite materials that optimize the storage of solar energy in chemical bonds, Kanai says.
or exhibit a complex composition they can be classified as composite materials which means that you need materials science
This flexible new material which the group has identified as a conductive polymer nanocomposite is the latest expression of the ongoing research in Drexel's Department of Materials science and engineering on a family of composite two-dimensional materials called MXENES.
Zheng Ling a doctoral student from Dalian spent a year at Drexel spearheading the research that led to the first MXENE-polymer composites.
because its two-dimensional structure and unique chemical properties made it a promising candidate for new applications such as energy storage material composites as well as computing
The global market for graphene is reported to have reached US$9 million this year with most sales concentrated in the semiconductor electronics battery energy and composites.
and induce additional reactions which allowed the graphene-based composite to develop into thick multilayered structures.
Smart Composite Nanosheets with Adaptive Optical Properties Jeong-Hwan Kim Murtaza Bohra Vidyadhar Singh Cathal Cassidy and Mukhles Sowwan Applied materials & Interfaces2014.
Carbon nanotubes are rapidly becoming more common because of their usefulness in nanoelectric devices composite materials and biomedicine.
#Nanoengineering enhances charge transport promises more efficient future solar cells Solar cells based on semiconducting composite plastics and carbon nanotubes is one of the most promising novel technology for producing inexpensive printed solar cells.
Placing the nanoparticles in the sheet prior to the friction stir processing step significantly increased the concentration of nanoparticles in the composite.
The team then demonstrated that the composite made in this way had improved significantly hardness and tensile strength compared to untreated aluminum alloy sheets.
A composite is a material containing grains or chunks of several different materials. In a nanocomposite the size of each of these grains is on the order of nanometers roughly 1000 times smaller than the width of a human hair.
In the context of nuclear energy composites have been proposed for the fuel itself as a way for example to improve the basic properties of the material such as the thermal conductivity.
Composites have also been created to store the by-products of the nuclear energy cycle nuclear waste where the different components of the composite can each store a different part of the waste.
However composites have much broader applications. The interfaces provide regions of unique electronic and ionic properties
The combination of CNTS and graphene into 3d hybrid composites can usually mitigate the self-aggregation
which was key to creating the composite two-dimensional semiconductor. Collaborators from the electron microscopy center at the University of Warwick in England found that all the atoms in both materials formed a single honeycomb lattice structure, without any distortions or discontinuities.
But nanotubes that happen to broadside the target unzip into handy ribbons that can be used in composite materials for strength
It abandons the black chromium that was used for panels currently on the market in favor of a multilayer composite of cobalt for its corrosion resistance, manganese for black,
Currently, ceramic composites consisting of ionic and electronic conductive components like those in this study are under consideration for membrane separation devices that provide oxygen for enhanced conversion of coal and natural gas
and Technology (KAIST) has developed a hyper-stretchable elastic-composite energy harvesting device called a nanogenerator. Flexible electronics have come into the market
and hyper-stretchable elastic-composite generator (SEG) using very long silver nanowire-based stretchable electrodes. Their stretchable piezoelectric generator can harvest mechanical energy to produce high power output (4 V) with large elasticity (250%)and excellent durability (over 104 cycles.
#Using composite material samples, NRL scientists predict aspects of F/A-18 performance The U s. Naval Research Laboratory (NRL) has built a robot to pull, bend,
and twist samples of the composite materials used to build F/A-18s and other aircraft.
"It's a sample of advanced composite, made of resin reinforced by carbon epoxy fiber."
as set out in the Composite materials Handbook-MIL 17. The approach starts with testing fibers and matrix materials;
"As private companies and the military continue to look to advanced composites for new aerospace and other applications,
he would have to"capture the behavior of the composites in any possible combination of loading;"
what might happen to an advanced composite in the real world. Advanced composites age in a very particular way."
"The resin that's between the fibers starts developing little micro-cracks,"says Michopoulos, which can cause the resin to separate from the fibers or the fibers to break."
"You cannot write on a small piece of paper a single equation that encapsulates how composites behave.""From 2008-2012, the Cooperative Research Centre Advanced Composite Structures (CRC-ACS) of Australia provided specimens to NRL to test
and characterize, while they did their own tests using more traditional methods. Universities in Australia and the Massachusetts institute of technology MIT also participated in the project, with support from the Office of Naval Research ONR.
being efficient to thrive Using Composite material Samples, NRL Scientists Predict Aspects of F/A-18 Performance The U s. Naval Research Laboratory (NRL) robot,
U s. Naval Research Laboratory/Jamie Hartman While Michopoulos is interested in continuing to run experiments on composites,
"Characterization of composite materials,"he says, "is a domain that I'm fortunate to be able to expresss an industrialization process, an application."
"Using Composite material Samples, NRL Scientists Predict Aspects of F/A-18 Performance Dr. John Michopoulos with the robot he
and Duraform HST Composite. Yost is acutely aware of his many critics and nonbeleivers, and so he has come up with a bold adventure to prove his concept works.
extruding ABS-carbon fiber composite over the course of 40 hours, before the body was milled to achieve a more refined look.
and the material supplier for the ABS-carbon fiber composite we were able to reduce the material
Most of the existing uses for old tyres involve making low value secondary products such as asphalt, aggregate for cement, artificial reefs, footwear, plastic and rubber composites,
This capability supports"materials by design,"a concept that enables the development of unique new materials for function-specific applicability, such as lighter, stronger fiber composites for airplane wings;
A boat made of such lightweight composites will not sink despite damage to its structure. The new material also promises to improve automotive fuel economy
'The ability of metals to withstand higher temperatures can be a huge advantage for these composites in engine and exhaust components, quite apart from structural parts.'
'The magnesium alloy matrix composite is reinforced with silicon carbide hollow particles and has a density of only 0. 92 grams per cubic centimeter compared to 1. 0 g/cc of water.
Significant efforts in recent years have focused on developing lightweight polymer matrix composites to replace heavier metal-based components in automobiles and marine vessels.
The technology for the new composite is very close to maturation and could be put into prototypes for testing within three years.
The composite can be customized for density and other properties by adding more or fewer shells into the metal matrix to fit the requirements of the application.
The new composite has potential applications in boat flooring, automobile parts, and buoyancy modules as well as vehicle armour. h
Conductive Composites has created a method to layer nickel on carbon to form a material that's light
and manufacturing performance advantages of composites and plastics,'the firm says. Using the wallpaper would allow people to easily turn entire rooms into Faraday cages.
By adding composites made of a polymer and reduced graphene oxide, the films are able to detect touch
A leading neuroscientist at Florida Atlantic University has developed the"Lewy Body Composite Risk Score"(LBCRS) to quickly
The LBCRS study,"Improving the Clinical Detection of Lewy Body Dementia with the Lewy Body Composite Risk Score,
Next, the scientists developed lightweight robots made of glass-fiber-reinforced composite materials that, in total, weighed only 0. 002 ounces a little more than the weight of three adult houseflies.
But this ceramic is a complex composite that is also very light, and tough like a metal.
says Gregory Morscher, a ceramic composites expert and mechanical engineering professor at the University of Akron.
The theoretical qualities of these ceramic composites have long been well known, but Luthra wanted to make them a reality,
who manages the LEAP program for GE Aviation division, of the composite. GE says that by 2020,
He wants to improve the composites so they can handle even higher temperatures, and he wants to convince more divisions at GE to use the materials. don want to stop,
This new composite presents some special talents. Firstly, it produces under sun light illumination a photovoltage of almost 0. 5 volts and very high photocurrent densities of up to 38 ma/cm2;
in order to optimize the properties of the novel composite photoelectrode device. The properties were optimal with a volumetric proportion of about 5%platinum (H2ptcl6) in the precursor solution."
In addition, it has been reported in the very recently published article that the composite shows high long-term stability over 25 hours
For energy devices we have demonstrated solution-processable approaches to fabricate organic photovoltaic devices on nearly arbitrary surfaces including PET and polymer reinforced polymer composites.
when the amount of diopside added to the base of hydroxyapatite increases up to 30 weight percent, the size of final composite grain and its size distribution significantly decreases after two steps of sintering process.
The synthesis of these fabrics will open new windows to the production of composites with conventional and innovative applications.
The synthesized magnetic composite is separated from the solution phase in the presence of a magnetic field in a short time through this method.
Results showed that the synthesized composite can be used as an effective sorbent to purify water contaminated by fluoride due to its simple and quick separation, high efficiency and the lack of the creation of secondary pollution in the solution.
The composite can be reused even after five times of application and it can be recycled only by using acidic solution.
MOFS are composites of metals--in this case magnesium or manganese--with organic compounds that, together, form a porous structure with microscopic, parallel channels.
If this disorder can be realized in real composite materials then we could tailor the thermal conductivity of the system,
The researchers hope their model will help scientists design composite materials with low thermal conductivity. One attractive application is thermoelectric devices,
who is the senior author of a paper describing the new sensor this week in the journal Angewandte Chemie("Single-Walled carbon nanotube/Metalloporphyrin Composites for the Chemiresistive Detection of Amines and Meat Spoilage").
as well as superstrong composites--like the ones used in phone cases and body armor. Each new combination of atom-thick layers presents new properties
structural composites and many other fields, enabling a new level of engineering on the atomic scale
artificial composites that exhibit properties not found in naturally occurring substances. They had designed previously a metamaterial thermal cloak that passively guided conductive heat around a hidden object.
due to the new composite materials the façade is made of (glass fibres and an organic binder) and to the complexity of the units.
"While our system has been developed initially for products made from plastics or composites through injection molding,
the artificial tooth clearly shows that a degree of control over the microstructure of a composite material can be achieved,
#Hyper-stretchable elastic-composite energy harvester Scientists have developed a hyper-stretchable elastic-composite energy harvesting device called a nanogenerator.
and Technology (KAIST) has developed a hyper-stretchable elastic-composite energy harvesting device called a nanogenerator. Flexible electronics have come into the market
and hyper-stretchable elastic-composite generator (SEG) using very long silver nanowire-based stretchable electrodes. Their stretchable piezoelectric generator can harvest mechanical energy to produce high power output (4 V) with large elasticity (250%)and excellent durability (over 104 cycles.
and solidify a composite without the need for massive ovens. When connected to an electrical power source,
and wrapped over a multilayer polymer composite, the heated film stimulates the polymer to solidify.
energy saving method for manufacturing virtually any industrial composite, says Brian L. Wardle, an associate professor of aeronautics and astronautics at MIT."
the film itself--a fraction of a human hair's diameter--meshes with the composite, adding negligible weight.
why not use it to make the composite itself? How hot can you go? In initial experiments, the researchers investigated the film's potential to fuse two types of aerospace-grade composite typically used in aircraft wings and fuselages.
Normally the material, composed of about 16 layers, is solidified, or cross-linked, in a high-temperature industrial oven.
or cross-link, the polymer and carbon fiber layers, finding that the CNT film used one-hundredth the electricity required for traditional oven-based methods to cure the composite.
Both methods generated composites with similar properties, such as cross-linking density. Wardle says the results pushed the group to test the CNT film further:
As different composites require different temperatures in order to fuse, the researchers looked to see whether the CNT film could,
"The team is working with industrial partners to find ways to scale up the technology to manufacture composites large enough to make airplane fuselages and wings."
"Gregory Odegard, a professor of computational mechanics at Michigan Technological University, says the group's carbon nanotube film may go toward improving the quality and efficiency of fabrication processes for large composites, such as wings on commercial aircraft.
"This could lead to more innovation in the composites sector, and perhaps improvements in the performance and usage of composite materials."
"This research was funded in part by Airbus Group, Boeing, Embraer, Lockheed martin, Saab AB, Tohotenax, ANSYS Inc.,the Air force Research Laboratory at Wright-Patterson Air force base,
nano-metal composites are scarce and often available in small quantities only. We wanted to demonstrate that it was possible to produce nanomaterials in considerable quantities cost-effectively,"comments Ari Auvinen of VTT, head of the research team.
as well as superstrong composites--like the ones used in phone cases and body armor. Each new combination of atom-thick layers presents new properties
structural composites and many other fields, enabling a new level of engineering on the atomic scale
However, the resulting composite interface is prone to collapse under external pressure. Nanometer-size textures should facilitate more resilient coatings owing to geometry and confinement effects at the nanoscale.
and composites industries. The researchers, which include colleagues at the Max Planck Institute for Solid State Research through the joint Max-Planck-UBC Centre for Quantum Materials,
and composites industries. The researchers, which include colleagues at the Max Planck Institute for Solid State Research through the joint Max-Planck-UBC Centre for Quantum Materials,
#Researchers develop 3-D printing method for creating patient-specific medical devices A team of researchers at Northeastern University has developed an innovative 3-D printing technology that uses magnetic fields to shape composite materials
"Others have used composite materials in 3-D printing, says Joshua Martin, the doctoral candidate who helped design
This is the strategy taken by many natural composites from bones to trees. Consider the structure of human bone.
They then apply ultralow magnetic fields to individual sections of the composite material--the ceramic fibers immersed in liquid plastic--to align the fibers according to the exacting specifications dictated by the product they are printing."
The pressure sensors are made of a carbon nanotube-elastomer composite shaped into tiny pyramidal structures that are coated onto a surface.
Japan, demonstrates this principle. e used a fiber-reinforced composite material to build a cylinder casing for a one-cylinder research engine, reports Dr. Lars-Fredrik Berg,
Berg team uses a glass-fiber-reinforced phenolic composite developed by SBHPP, which fulfills all of these requirements
A lighter-weight but more expensive alternative is to use a carbon-fiber-reinforced composite the choice depends on
The melted composite material in which the glass fibers are mixed already with the resin, hardens in the mold into
Once the gold/graphene composite is separated from the copper substrate, the newly exposed side of the graphene layer is sandwiched with another gold sheet to produce the gold:
in order to achieve composite materials with enhanced mechanical properties for engineering body parts. Professor Hutmacher said hydrogels were favoured
Professor Hutmacher said the team had introduced organised high-porosity microfiber networks that are printed using a new technique called elt electrospinning writing e found that the stiffness of the gel/scaffold composites increased synergistically up to 54 times,
explains Abhijeet Chaudhari, a DPHIL student in the Multifunctional Materials & Composites (MMC) Laboratory at Oxford university Department of Engineering science,
Thermoelectric graphene composite, with graphene fragments ringed in the 2 m-scale image Internal combustion engines lose about 70 per cent of the energy from their fuel as heat,
and Robert Freer has found that making it into a composite with grapheme could be advantageous.?
Other graphene-related automotive research at Manchester includes using the material in composites for lightweight bodywork
a patent-pending technology that uses a growing organism and byproducts from food production (oat hulls from New york, cotton hulls from Texas and rice hulls from Arkansas) to create a strong composite material.
#Shape-Shifting Carbon Composites Could Save Fuel Airbus and researchers at MIT are developing shape-shifting materials that could make aircraft simpler and lighter potentially saving fuel.
Made of carbon fiber composites the materials shift between two or more shapes in response to changes in heat air pressure or other environmental factors.
First most shape-shifting materials don t use carbon composites which are common in aircraft because of their light weight and high strength.
And though others have worked on carbon composites that can respond to a specific stimulus such as heat Cros says in the new approach the carbon composites can be paired with a variety of shape-shifting materials that respond to different environmental triggers.
Another advantage to the new approach is that it doesn t require the electrical connections some other shape-changing composites need.
Skylar Tibbits director of MIT s Self-Assembly Laboratory begins with novel carbon fiber composites developed by the startup Carbitex based in Kennewick Washington.
Most carbon fiber composites are rigid: the glue that holds the fibers together known as matrix doesn t allow them to bend.
Some result in carbon composites that are floppy like a cotton sheet. Others are springy like a sheet of metal.
As they change they force the carbon composite on which they re deposited to bend
He and his colleagues are developing design software that simulates the way different patterns of these materials printed onto different kinds of composite materials will behave under different conditions.
"His team specialises in modifying carbon fibre composite materials, the strong but lightweight substances used increasingly widely in the manufacture of everything from commercial aircraft wings to sports racquets and high-performance bicycles.
"The Bristol team's advances could be applied to all kinds of carbon fibre composite materials-meaning that self-healing golf clubs, tennis racquets,
How the technology is being used Professor Wass's team at the University of Bristol has been focusing on the creation of self-healing versions of carbon fibre composite materials
*Sports equipment such as tennis racquets, fishing rods and golf clubs are made often from carbon fibre composites for the same reasons.
"His team specialises in modifying carbon fibre composite materials, the strong but lightweight substances used increasingly widely in the manufacture of everything from commercial aircraft wings to sports racquets and high-performance bicycles.
"The Bristol team's advances could be applied to all kinds of carbon fibre composite materials-meaning that self-healing golf clubs, tennis racquets,
How the technology is being used Professor Wass's team at the University of Bristol has been focusing on the creation of self-healing versions of carbon fibre composite materials
*Sports equipment such as tennis racquets, fishing rods and golf clubs are made often from carbon fibre composites for the same reasons s
Illinois and produces a range of products including adhesives, coatings, inks, resins, composites, photopolymers and other materials for manufacturing-found that the materials have unique uses in additive manufacturing
But it been a mostly polymer composite with graphene making up less than 20 percent of the volume
hollow microspheres to carbon fibre composite materials that would release a liquid healing agent upon impact.
""This has been a challenging yet exciting program to take a passive composite material and create a complex antenna structure that not only provides ballistic protection
"The technology could also be applied to other products made of carbon composite materials-including bicycle frames and wind turbines,
"Composite materials are used increasingly in modern airlines, military aircraft and wind turbines. They are very stiff and strong but very light."
and supplies materials and composites used to build components. Director Scott Sevcik predicts that within 10 years,
The Shanghai Composite rose over 150%between mid-2014 and its peak in Mid-june 2015.
while the electrodes a new composite made of silicon and platinum microbeads can be pulled in any direction.
< Back - Next >
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011