"Metallic glass" sounds like an oxymoron, but it's Todd Hufnagel's goal. Hufnagel, a researcher at Johns Hopkins University, hopes to create a metallic glass in bulk form with superior strength, elasticity, and magnetic properties that will not crystallize at higher temperatures. A glass is any material that can be cooled from a liquid to a solid without crystallizing. Most metals crystallize as they cool, arranging their atoms into a highly regular spatial pattern called a lattice. If crystallization does not occur, and the atoms settle into a nearly random arrangement, the final form will be a metallic glass. Hufnagel and associates are researching the deformation of glass alloys at high rates; and the phase transformation or crystallization window between liquid and solid states, when the material is soft enough to be molded; as well as new combinations of alloys. "Metallic glass is highly elastic, bending 2 to 3% before it permanently changes shape," Hufnagel says. This makes it a useful material for springs. The first commercial application to date is golf club heads. Mountain bike manufacturers are calling about the possibility of using the material as a shock absorber. Because metallic glass would not shrink, yet is extremely flexible, it may be ideal for injection molding, Hufnagel adds. Other applications: engine parts, electric transformers, and military applications, such as armor-piercing projectiles. FAX: (410) 516-5251.
Audi is testing a new technology that eases many assembly activities at its Neckarsulm plant: the so-called "chairless chair." The device's carbon-fiber construction allows employees to sit without a chair. At the same time, it improves their posture and reduces the strain on their legs.
Just when you thought mobile technology couldn’t get any more personal, Procter & Gamble have come up with a way to put your mobile where your mouth is, in the form of a Bluetooth 4.0 connected toothbrush.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.