Archive for the ‘Materials’ Category
December 12, 2013 — Researchers are taking advantage of the unique properties of graphene to design tiny antennas that may open the possibility for networks of nanometer-scale machines. Graphene could generate a type of electronic surface wave that would allow antennas just one micron long and 10 to 100 nanometers wide to do the work of much larger antennas.
December 9, 2013 — Researchers are developing a family of generators that provide power for portable electronic devices and sensors by harnessing the triboelectric effect to capture mechanical energy that would otherwise be wasted.
November 21, 2013 — Researchers have created magnetic replicas of sunflower pollen grains using a wet chemical, layer-by-layer process that applies highly conformal iron oxide coatings. The replicas possess natural adhesion properties inherited from the spiky pollen particles while gaining magnetic behavior, allowing for tailored adhesion to surfaces.
November 14, 2013 — A pair of carbon nanotube arrays will be flying in space by the end of the year to test technology that could provide more efficient micro-propulsion for future generations of spacecraft. The devices will be part of a Cube Satellite (CubeSat) developed by the Air Force Institute of Technology (AFIT).
November, 13, 2013 – The phonon, like the photon or electron, is a physical particle that travels like waves, representing mechanical vibration. Phonons transmit everyday sound and heat. Recent progress in phononics has led to the development of new ideas and devices that are using phononic properties to control sound and heat, according to a new review in Nature.
October 21, 2013 — A new Department of Energy grant will fund research to advance an additive manufacturing technique for fabricating three-dimensional nanoscale structures from a variety of materials. The technique uses high-speed, thermally-energized jets to deliver both precursor materials and inert gas.
October, 17, 2013 – The Carbon-Neutral Energy Solutions (CNES) Laboratory ribbon cutting and dedication ceremony was held on Oct. 17. The lab is the latest addition to the North Avenue Research Area (NARA) complex, on the southwestern edge of campus. The mission of CNES is to bring together a diverse mix of experts to solve some of the big technological problems in clean energy and partner with industry to bring these solutions to the market. So far, solar research at CNES, with numerous projects, patents and industry partnerships, is a shining example of things to come.
October 1, 2013 — A new study has found that “waviness” in forests of carbon nanotubes dramatically reduces their stiffness. Instead of being a detriment, the waviness may make the nanotube arrays more useful as thermal interface material for conducting heat away from future high-powered integrated circuits.
September 19, 2013 — Water pours into a cup at about the same rate regardless of whether the water bottle is made of glass or plastic. But at nanometer-size scales for water and potentially other fluids, whether the container is made of glass or plastic does make a significant difference.
August 11, 2013 — Georgia Tech researchers want to put your signature up in lights. Using thousands of nanometer-scale wires, the researchers have developed a sensor device that converts mechanical pressure – from a signature or a fingerprint – directly into light signals that can be captured and processed optically.