The MICROTEST product range brings a powerful dimension to traditional tensile testing of a wide range of materials by allowing in-situ SEM imaging of the changes in microstructure during the deformation experiment. The SEM provides a deeper understanding of the cause of the deformation with the ability to image where change is occurring. Combined information from a dynamic experiment overcomes uncertainties in interpreting traditional stress / strain data.
A wide range of modules is available for tensile, compression and / or bending tests, with load ranges from less than 2N up to 5000N.
Microtest modules are specifically designed for the SEM allowing short working distance operation, with a leadscrew designed to keep the region of interest stable during straining.
Microtest software allows constant strain rate and constant load testing, with cycling capabilities and data acquisition of load and extension. The live load readout has a high precision readout of 0.1% of the maximum load range. With a suitable TV video out signal, video capture linked to stress strain data point plotting is also possible as an option.
For some modules, dynamic experiments can optionally be performed with heated or cooled grips, or a heated platform. A sensor on the grips or platform, and temperature controller allows effective measurement and control.
Microtest modules are specially engineered for the SEM environment and are available in four versions — 200N, 300N, 2kN and 5kN. However, for maximum flexibility, the Microtest range is available with different gearbox and load cell range options. 3 or 4 pt horizontal bending grips allow different load configurations. Additionally, the Microtest 300 and 2000 are available in a dedicated vertical three point bending configuration.