Percolation channels: a universal idea to describe the atomic structure and dynamics of glasses and melts.

ABSTRACT: Understanding the links between chemical composition, nano-structure and the dynamic properties of silicate melts and glasses is fundamental to both Earth and Materials Sciences. Central to this is whether the distribution of mobile metallic ions is random or not. In silicate systems, such as window glass, it is well-established that the short-range structure is not random but metal ions cluster, forming percolation channels through a partly broken network of corner-sharing SiO₄ tetrahedra. In alumino-silicate glasses and melts, extensively used in industry and representing most of the Earth magmas, metal ions compensate the electrical charge deficit of AlO₄^- tetrahedra, but until now clustering has not been confirmed. Here we report how major changes in me

SUBMITTER: Le Losq C 

PROVIDER: S-EPMC5705680 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature