Fe0.79Si0.07B0.14 metallic glass gaskets for high-pressure research beyond 1   Mbar

We report that Fe0.79Si0.07B0.14 metallic glass gaskets offer a stable sample environment under compression exceeding 1   Mbar in all XRD experiments described here, even in those involving small-molecule gases (e.g. Ne, H2) used as pressure-transmitting media or in those with laser heating in a DAC. Our results emphasize the material's importance for a great number of delicate experiments conducted under extreme conditions. They indicate that the application of Fe0.79Si0.07B0.14 metallic glass gaskets in XRD experiments for both axial and radial geometries substantially improves various aspects of megabar experiments and, in particular, the signal-to-noise ratio in comparison to that with conventional gaskets made of Re, W, steel or other crystalline metals.
Source: Journal of Synchrotron Radiation - Category: Physics Authors: Tags: diamond anvil cell (DAC) amorphous metal gasket metallic glass axial and radial high-pressure X-ray diffraction signal-to-noise ratio research papers Source Type: research