Due to their small size and sometimes unique geometries, characterization of samples that range from microwires to fibers comprised of novel materials to MEMS devices poses many unique challenges. A few specific challenges in this arena of nanomechanical testing are: an accurate determination of the ratio of stress to strain and the evaluation of viscoelastic and dynamic properties.
NANO UTM™ universal testing systems incorporate state-of-the-art technology to achieve accurate, reproducible results for the measurement of nanomechanical properties. NANO UTM systems couple a robust design to extend instrument life with our powerful Windows®-based TestWorks 4 software that both simplifies testing and enables a wide variety of experiment options.
NANO UTM systems offer an unsurpassed means of measuring both quasi-static and dynamic properties. Incorporating a nanomechanical actuating transducer (NMAT), the NANO UTM system is capable of conducting both large and small strain tests. In large strain testing, thanks to its patented technique, NMAT applies and senses load while the crosshead strains the sample. In this mode, extension is measured by the movement of the crosshead. In small strain testing, the crosshead remains stationary as NMAT applies and senses load while also measuring extension. |
NANO UTM systems from MTS are the only commercially-available universal testing systems that allow dynamic properties to be measured using the Continuous Dynamic Analysis, or CDA, instrument extension. By superimposing a nanometer-level oscillation, the CDA option offers a means of separating the in-phase and out-of-phase components the load displacement history to evaluate the time-dependent response of the material.
Ultimate tensile strength, yield, modulus, and failure measurements are all a snap to perform with NANO UTM systems. When coupled with the CDA extension, you can use NANO UTM systems to measure dynamic properties, such as storage and loss modulus, with a high degree of confidence in the results.
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