In-Situ Tensile Testing in the TEM and SEM with Hysitron Picoindenters
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Broadcast Times: Thursday, June 25 - 2PM CEST and 3PM PDT
The tensile test is the standard mechanical test for determining Young’s modulus, yield strength, work hardening, and more. These tests are more challenging than their peers to perform at nano- and micromechanical length scales, requiring advanced sample preparation and positioning. In 2006, researchers using Bruker’s Hysitron Picoindenter tools were the first to enable in-situ quantitative testing, originally in the TEM, followed shortly in the SEM. Indentation,1 compression, and tensile modes2,3 as standard on the original Hysitron PI 95 led to a wave of in-situ publications. In this seminar, the focus is on re-creating a uniaxial strain using both direct pull2 with tensile actuation of the transducer, and the patented Push-to-Pull MEMS chip.3
We welcome these experts to present data from the past, present, and future of in-situ tensile testing in the SEM and TEM.
In-Situ Tensile Testing in a TEM: Both Measuring and Observing Changes in Local Structure
Presenter: Prof. Andrew Minor
In-Situ TEM Failures in Fatigue and Other Extreme Environments
Presenter: Dr. Khalid Hattar
A Practical Demonstration of In-Situ SEM Direct Pull Tension: Step-by-Step Sample Preparation and Testing of a Duplex Steel
Presenter: Dr. Eric Hintsala
- A new view of the onset of plasticity during the nanoindentation of aluminium. Minor, A.M., Asif, S.A.S., Shan, Z.W., Stach, E.A., Cyrankowski, E.C., Wyrobek, T., Warren, O.L. Nature Materials 5 697-702 (2006).
- Source Truncation and Exhaustion: Insights from Quantitative in situ TEM Tensile Testing. Kiener, D. and Minor, A.M. Nano Letters 11, 9, 3816–3820 (2011).
- Mechanics and Dynamics of the Strain-Induced M1-M2 Structural Phase Transition in Individual VO2 Nanowires. Guo, H. Chen, K., Oh, Y., Wang, K. Dejoie, C., Asif, S.A.S., Warren, O.L., Shan, Z.W., Wu, J. and Minor, A.M. Nano Letters 11, 3207-3213, (2011).
Facility Director, National Center for Electron Microscopy,
Molecular Foundry Division
Senior Faculty Scientist, Materials Science and Molecular Foundry Divisions, Lawrence Berkeley National Laboratory
Director, Engineering Research Center for Magnesium-based New Materials
Deputy Director, State Key Laboratory for Mechanical Behavior of Materials
Dean, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, China