What do US military planners consider top materials research targets? Well according to the head of the Pentagon’s research arm (the Defense Advanced Research Projects Agency or DARPA) low-cost titanium tops the list. Titanium is in increasing demand for light weight aircraft and stealth-seeking submarines, while its costs are rising and significant amounts of supply are controlled by Russia. One troubling indication is the recent huge supply agreement made between Boeing and Russia’s top titanium provider. DARPA has distributed more than $20 million in grants in efforts to develop lower-cost titanium, as well as material that would have improved fabrication capabilities. DuPont is teaming with a company called MER to explore a technology in which titanium dioxide can be converted into titanium power which can be easily shaped through molding or casting processes.
The amount of plastic clogging the ocean continues to grow. Some startling, not-so-good news has come out recently about the roles plastic is playing in the ocean, as well as more heartening news about efforts to collect and reuse it.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
A self-propelled robot developed by a team of researchers headed by MIT promises to detect leaks quickly and accurately in gas pipelines, eliminating the likelihood of dangerous explosions. The robot may also be useful in water and petroleum pipe leak detection.
Aerojet Rocketdyne has built and successfully hot-fire tested an entire 3D-printed rocket engine. In other news, NASA's 3D-printed rocket engine injectors survived tests generating a record 20,000 pounds of thrust. Some performed equally well or better than welded parts.
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