Factors correlating to enhanced surface diffusion in metallic glasses

Correlating PFG NMR and IR Diffusion Measurements in Porous Glasses

1. Introduction Molecular diffusion is among the famous topics of current research on nanoporous materials [1]. Diffusion of molecules in porous media can be measured by a large variety of experimental methods. However, diffusivities measured with different techniques for the same system vary in several zeolitic systems over more than two orders of magnitude [2]. In many cases the origin of thi...

microleakage evaluation in regard to cavo-surface designs & treatments

چکیده ندارد.

LOW-ENERGY-ION ENHANCED DIFFUSION AT THE SURFACE OF METALS

Radiation enhanced diffusion at the surface of metals has been observed and studied for low-energy nitrogen ions at the surface of copper. The displacement of the target atoms during irradiation creates vacancies and other defects near the surface, thus enhancing the diffusion of implanted materials toward the surface and also into the solid. The mechanism has been studied here by a specia...

Superconductivity in Metallic Glasses

Cluster-assembled metallic glasses

A bottom-up approach to nanofabricate metallic glasses from metal clusters as building blocks is presented. Considering metallic glasses as a subclass of cluster-assembled materials, the relation between the two lively fields of metal clusters and metallic glasses is pointed out. Deposition of selected clusters or collections of them, generated by state-of-the-art cluster beam sources, could le...