Output details
13 - Electrical and Electronic Engineering, Metallurgy and Materials
Queen Mary University of London : B - Materials
"Liquid-gas" transition in the supercritical region: fundamental changes in the particle dynamics.
This paper outlines our recent idea that the supercritical state of matter is not physically homogeneous as currently assumed, but instead supports two distinct states: ‘rigid’ liquid state and ‘non-rigid’ gas-like fluid, separated by a new line on the phase diagram which we coined the ‘Frenkel line’. Crossing the Frenkel line gives qualitative changes of all major physical properties of a supercritical system, incl. diffusion, viscosity, thermal conductivity, speed of sound and specific heat. The work resulted in two invited talks at the 2013 annual meeting of the American Ceramic Society in San Diego.