A number of other groups have been working to make super-black materials from carbon nanotubes in recent years. A prime application for the material is in sensitive optical equipment, like telescopes. A NASA Goddard team, led by John Hagopian, has been developing nanotube materials since 2007.
To make the super-black material, they lay down a catalyst layer of iron oxide and then, in an 1,832 degree-Fahrenheit (750 C) oven, bathe the surface in carbon-enriched gas. The resulting multi-walled carbon nanotubes?nanotubes layered inside one another like Russian nesting dolls?can be grown on titanium, copper, and stainless steel.
Join us on our
Share this page with your friends
on your favorite social network: