Atomic Fractals in Metallic Glasses
Julia R. Greer, Professor of Materials Science and Mechanics, and colleagues including graduate student David Chen have shown that metallic glasses has an atomic-level structure although it differs from the periodic lattices that characterize crystalline metals. "Our group has solved this paradox by showing that atoms are only arranged fractally up to a certain scale," Greer says. "Larger than that scale, clusters of atoms are packed randomly and tightly, making a fully dense material, just like a regular metal. So we can have something that is both fractal and fully dense." [Caltech story]
Professor Greer Named Young Global Leader by the World Economic Forum
Julia R. Greer, Professor of Materials Science and Mechanics, has been selected as a 2014 Young Global Leader by the World Economic Forum. Each year the selection Committee, which is headed by Her Majesty Queen Rania Al Abdullah of the Hashemite Kingdom of Jordan, identifies and recognizes the most distinguished leaders under the age of 40, nominated from around the world. Candidates are selected based on their proven track record of professional accomplishments, breadth of their expertise, commitment to society and their ability to overcome adversity.