As important, says Davis, a "protective char layer" forms when the nanotube-coated foam is exposed to extreme heat, creating a barrier that prevents the formation of melt pools. "This kind of ...

Superhydrophobic surfaces—those famously "never-wet" materials that make water bead up and roll away—have a stubborn weakness: hot water. Once temperatures climb above roughly 40 degrees Celsius, many ...

In everyday life, materials that conduct electricity well, like metals, also tend to conduct heat. For instance, a metal spoon left in a hot cup of tea will get hot, while the ceramic mug remains cool ...

(Nanowerk Spotlight) What happens when a fluid is brought in contact with a solid surface – the process of 'wetting' – has intrigued physicists and material engineers for a long time. In physical ...