Researcher explores contact freezing of water at the nanoscaleAt the nanoscale, water freezes in var
Researcher explores contact freezing of water at the nanoscaleAt the nanoscale, water freezes in various ways, and not all of them are completely understood. Among other benefits, getting a better handle on these processes could mean big improvements in weather prediction.To that end, the lab of Amir Haji-Akbari, assistant professor of chemical & environmental engineering, has focused on a particularly fast process known as contact freezing, in which a supercooled (below freezing, but unfrozen) liquid droplet in the atmosphere collides with a nucleating particle—that is, a particle that facilitates the freezing of a liquid that comes into contact with it. The freezing happens much faster than the process of immersion freezing—a more common occurrence in which a nucleating particle is already inside a liquid droplet when the temperature decreases.The results were recently published in the Journal of the American Chemical Society.Read more. -- source link
#materials science#science#nanotechnology#phase transitions#freezing#phases#yale university