Klemen Motaln, Erik Uran, Nico Giordano, Simon Parsons, Matic Lozinšek
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引用次数: 0
Abstract
A pressure-transmitting medium (PTM) plays an important role in diamond anvil cell (DAC) experiments as it ensures that the sample is exposed to hydro-static pressure. Although PTMs that are liquids under ambient conditions are the easiest to handle and load, the selection of chemically inert liquid media with established hydro-static properties is limited. To widen the choice of highly inert PTMs for high-pressure experiments, the hydro-static behaviours of Fomblin Z60, Fomblin Z25, Fomblin Y LVAC 06/6 and Halocarbon Oil 11-14 were investigated. The ruby fluorescence method was used to monitor the evolution of pressure gradients across the DAC sample chamber during compression and decompression. Fomblin Z60 and Fomblin Z25 perfluoro-polyethers, which are hydro-static to 1.7 and 1.5 GPa, respectively, exhibited the best hydro-static performance, followed by Halocarbon Oil 11-14 with a limit of 1.2 GPa, whereas the non-hydro-static behaviour of Fomblin Y LVAC 06/6 was observed above only 0.6 GPa.
期刊介绍:
Many research topics in condensed matter research, materials science and the life sciences make use of crystallographic methods to study crystalline and non-crystalline matter with neutrons, X-rays and electrons. Articles published in the Journal of Applied Crystallography focus on these methods and their use in identifying structural and diffusion-controlled phase transformations, structure-property relationships, structural changes of defects, interfaces and surfaces, etc. Developments of instrumentation and crystallographic apparatus, theory and interpretation, numerical analysis and other related subjects are also covered. The journal is the primary place where crystallographic computer program information is published.