Osmium metal studied under high pressure and nonhydrostatic stress
Michelle B Weinberger1, Sarah H Tolbert, Abby Kavner
1Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, USA.
Abstract:
Interest in osmium as an ultra-incompressible material and as an analog for the behavior of iron at high pressure has inspired recent studies of its mechanical properties. We have measured elastic and plastic deformation of Os metal at high pressures using in situ high pressure x-ray diffraction in the radial geometry. We show that Os has the highest yield strength observed for any pure metal, supporting up to 10 GPa at a pressure of 26 GPa. Furthermore, our data indicate changes in the nonhydrostatic apparent c/a ratio and clear lattice preferred orientation effects at pressures above 15 GPa.
More Related Videos
11:50Metal-silicate Partitioning at High Pressure and Temperature: Experimental Methods and a Protocol to Suppress Highly Siderophile Element Inclusions
Published on: June 13, 2015
09:35Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy
Published on: July 28, 2020
Related Concept Videos
Stress-Strain Diagram - Ductile Materials
Hooke's Law
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Stress-Strain Diagram - Brittle Materials
