In Situ Quantitative Tensile Testing of Antigorite in a Transmission Electron Microscope.

ABSTRACT: The determination of the mechanical properties of serpentinites is essential toward the understanding of the mechanics of faulting and subduction. Here we present the first in situ tensile tests on antigorite in a transmission electron microscope. A push-to-pull deformation device is used to perform quantitative tensile tests, during which force and displacement are measured, while the evolving microstructure is imaged with the microscope. The experiments have been performed at room temperature on 2 × 1 × 0.2 μm³ beams prepared by focused ion beam. The specimens are not single crystals despite their small sizes. Orientation mapping indicated that several grains were well oriented for plastic slip. However, no dislocation activity has been observed even though the engineering ten

SUBMITTER: Idrissi H 

PROVIDER: S-EPMC7375155 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature