Mechanical Properties of Nanoparticles: Characterization byIn situNanoindentation Inside a Transmission Electron Microscope

In Situ TEM Characterization and Modulation for Phase Engineering of Nanomaterials

“…According to the specific samples being examined, various tip geometries can be employed, such as Berkovichm, Vickers tip, truncated cone, or wedge. For example, the wedge type tip is usually used for thin section to avoid sample sliding during compression deformation . The sample geometry for nanoindentation-based in situ TEM experiments mainly includes nanowire, nanoparticle, nanopillar, , and nanosized thin film materials .…”

“…In Situ Nanomechanics. Nanoindentation-based 262 in situ TEM technology is derived from the instrumented indentation technique, where a tip is forced into a flat surface to measure the force and displacement. The traditional indentation technique can provide quantitative values of hardness, elastic modulus, and even yield stress.…”

“…For example, the wedge type tip is usually used for thin section to avoid sample sliding during compression deformation. 262 The sample geometry for nanoindentation-based in situ TEM experiments mainly includes nanowire, 267 nanoparticle, 161 nanopillar, 268,269 and nanosized thin film materials. 270 In addition, customized punch tips 198 (e.g., tensile gripper, as shown in Figure 15b) and sample geometries 271,272 (e.g., pushto-pull geometry, as shown in Figure 15c) can be prepared by FIB fabrication and integrated with the nanoindentation platform to perform tensile tests.…”