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November 10, 2011 12:05 am

NASA Creates Super-Black Carbon Nanotube Coating

An anonymous reader writes "NASA has just revealed a new, super-black material, claiming it is the most light absorbent material ever developed, and capable of absorbing 99% of ultraviolet, infrared, far-infrared, and visible light. The super-black material is about 10,000 times thinner than a human hair and created using carbon nanotubes. Those nanotubes are positioned and grown on multiple other materials including silicon, stainless steel, and titanium. The process of applying the coating requires heating the surface up to 1,382 degrees in an oven filled with a 'carbon-coating feedstock gas.' As well as being up to 100x more absorbent than anything that has come before, the coating is significantly lighter than the black paint and epoxy commonly used today to absorb light. Because the light absorption level is so high, the super-black material will also keep temperatures down for the instruments it is used on. And that very high absorption rate brings one final big advantage: it allows measurements to be taken at much greater distances in space because it removes the light emitted from around planets and stars as well as any generally high-contrast area of space."

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