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.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Although plastics make up only about 11% of all US municipal solid waste, many are actually more energy-dense than coal. Converting these non-recycled plastics into energy with existing technologies could reduce US coal consumption, as well as boost domestic energy reserves, says a new study.
This year's Dupont-sponsored WardsAuto survey of automotive designers and other engineers shows lightweighting dominates the discussion. But which materials will help them meet the 2025 CAFE standards are not entirely clear.
Artificially created metamaterials are already appearing in niche applications like electronics, communications, and defense, says a new report from Lux Research. How quickly they become mainstream depends on cost-effective manufacturing methods, which will include additive manufacturing.
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