Bruker’s Hysitron IntraSpect 90 is an in-situ indentation system specifically designed to correlate physiochemical changes during deformation. This system integrates with existing microscopes to enable simultaneous Raman characterization during small-scale indentation, tension, compression, or bend testing.
Indentation Testing:
Using the 3-axis sample positioning stages, the sample is positioned appropriately beneath a pyramidal-shaped diamond probe such that the Raman laser source can be focused directly on the contact zone at an angle of 90°. This allows for the direct observation of pressure-induced phase transformations, amorphization, and molecular re-arrangements occurring beneath the contact point during traditional nanoindentation testing.
Tensile Testing:
A micro Push-to-Pull (PTP) device provides means for applying uniaxial tension forces to small-scale fibers, films, and 2D materials in combination with Raman spectroscopy. Stress and strain values can be easily obtained from the raw force and displacement output of the system and correlated to structural changes within the material.
Compression Testing:
Stress is applied to microscale pillars, particles, and other small-scale structures using a flattened diamond probe. The microstructural origins of deformation behavior and strength are dynamically observed to inform the next generation of advanced engineered materials.
Bend Testing:
Elastic and fracture properties of micro-cantilevered and clamped beam specimens can be measured with bend testing. Simultaneous optical imaging enables direct observation of fracture initiation and subsequent propagation through a sample.
