It’s amazing to consider the long-term potential of carbon nanotubes as a polymer reinforcement if major issues (cost and health concerns) can be overcome. Research reveals the possibility of cross-linking CNT molecules prior to incorporation in a polymer matrix to form a super composite with a tensile strength of 20 million psi. Single-walled nanotubes exhibit unique electric properties and may be used for miniaturizing electronics beyond the micro electromechanical scale. Big producers are placing major bets on the technology. In Japan, Showa Denko is building a 400 million metric tons per year production plant. In Germany, Bayer is building a 200 million metric tons per year plant. They’re betting they can dramatically reduce the cost of CNTs which had been in the stratosphere as a pilot scale product, say $40,000 per pound. Multiwall nanotubes are down to $50 to $70 per pound now. Prices will drop as new plants come on line. Health issues must also be addressed.
An MIT research team has invented what they see as a solution to the need for biodegradable 3D-printable materials made from something besides petroleum-based sources: a water-based robotic additive extrusion method that makes objects from biodegradable hydrogel composites.
Alcoa has unveiled a new manufacturing and materials technology for making aluminum sheet, aimed especially at automotive, industrial, and packaging applications. If all its claims are true, this is a major breakthrough, and may convince more automotive engineers to use aluminum.
NASA has just installed a giant robot to help in its research on composite aerospace materials, like those used for the Orion spacecraft. The agency wants to shave the time it takes to get composites through design, test, and manufacturing stages.
The European Space Agency (ESA) is working with architects Foster + Partners to test the possibility of using lunar regolith, or moon rocks, and 3D printing to make structures for use on the moon. A new video shows some cool animations of a hypothetical lunar mission that carries out this vision.
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.