Materials Sciences

As if getting to Mars wasn’t hard enough, astronauts also have to worry about what to wear when they arrive. Their concerns are not fashion pundits but exposure to micrometeor sandstorms, radiation, and a hyper-cold climate.

However, three undergraduate students at the University of Alberta – Jennifer Marcy, Ann Shalanski, and Matthew Yarmuch – addressed the problem in Dr. Barry Patchett’s Materials Design 443 class and have published their findings in the Journal of Materials Eng

More durable helmets, vests, ski-sticks and various other fibre-glass plastic products are close to becoming a reality. Provided, of course, the manufacturers apply new technology – the one developed by the Chernogolovka scientists supported by the Russian Foundation for Basic Research and the Foundation for Assistance to Small Innovative Enterprises (FASIE).

When fibre-glass plastic products were first introduced to the market, the applicability of the material seemed truly unlimited. Late

By threading a magnetic field through a carbon nanotube, scientists have switched the molecule between metallic and semiconducting states, a phenomenon predicted by physicists some years ago, but never before clearly seen in individual molecules. In the May 21 issue of the journal Science, researchers from the University of Illinois at Urbana-Champaign present experimental evidence that a nanotube’s electronic structure can be altered in response to a magnetic field. The research team c

Research documents first instance of band-gap shrinkage in a semiconductor

A new study, published in today’s issue of the journal Science, finds that the basic electrical properties of semiconducting carbon nanotubes change when they are placed inside a magnetic field. The phenomenon is unique among known materials, and it could cause semiconducting nanotubes to transform into metals in even stronger magnetic fields.

Scientists found that the “band gap” of semiconductin

Untersuchungen zur Herstellung von Kohlenstoff-Nanomaterialien, um einen massentauglichen Herstellprozess für diese neuartigen Materialien zu entwickeln, sind Ziel einer neuen Bayreuther Forschungskooperation.

Untersuchungen zur Herstellung von Kohlenstoff-Nanomaterialien, um einen massentauglichen Herstellprozess für diese neuartigen Materialien zu entwickeln, werden jetzt im Rahmen eines Forschungskooperation zwischen dem Lehrstuhl für Chemische Verfahrenstechnik der Fakultät für Angewan

Researchers at the Public University of Navarre and the Navarre Industry Association research centre have managed to increase by 30 to 500 % the superficial hardness and resistance to wear of metals and V5Ti alloys by means of applying nitrogen. These results could be of great use for different industrial applications in which these types of materials are employed such as in the aeronautic and biomedical sectors.

Economic losses

The wear and tear of tools and machine tools i