In-situ micropillar compressionShear band in MicropillarStress-strain curve of a micropillar compressionMicropillar compression sequenceMicropillar alignment
Micropillar Compression TestingShear band in MicropillarStress-strain curve of a micropillar compressionMicropillar compression sequenceMicropillar alignment

Micropillar Compression Testing

The systematic development of advanced steel alloys requires a systematic understanding of their complex heterogeneous microstructure and their properties. Furthermore, the overall performance of these steels is defined by the volume fraction of each constituent and their properties. Therefore, the quantification of the mechanical properties of the constituents is important.

Application Example: Quantification of Shear Band Behavior in Micropillars

For applications in environments with high radiation fluxes, such as in nuclear reactors, a quantitative understanding of the impact of irradiation onto the material of the load bearing structures is required. In-situ SEM nanomechanical testing enables the compression testing of micropillars while recording the stress versus strain curves and the simultaneous visualization of their plastic morphology.

Application Example: Uniaxial Compression Testing of CNT Micropillars

Vertically aligned carbon nanotube (CNT) pillars are a promising material for applications such as flexible batteries, compliant thermal interface materials and 3D super capacitors. The mechanical properties of CNT arrays do not only depend on the individual nanotubes, but also on their packing density and the interaction forces between the individual tubes. To experimentally study the mechanical properties of a CNT pillar, a compression test is performed.