On-Demand Session: In Situ Cryogenic Testing

       _{PRESENTATION HIGHLIGHTS:}

•   [00:00:10] Hysitron PI 89 SEM PicoIndenter product overview & testing modes
• [00:02:15] Hysitron PI 89 - Automation and Property Mapping
• [00:03:14] Motivations for cryogenic testing
• [00:05:16] PI 89 SEM Cryo System Set up
• [00:08:30] Example work through: Tungsten indentation at cryogenic temperatures
• [00:09:50] Comparison of PI 89 and TI980 measurements

       _{PRESENTATION HIGHLIGHTS:}

Test case 1: Classical ductile-to-brittle temperature transition (DBTT)

• [00:05:00] Sample preparation of micro-cantilever
• [00:10:46] Experiment observations and forward opportunities

Test Case 2:  Anti-thermal boundary behavior

• [00:12:30] Purpose of experiment
• [00:16:06] Specimen preparation and micro-pillar compression fabrication
• [00:19:24] Experiment observations: Cu-2AI load-displacement response and microstructure evolution
• [00:25:49] Experiment observations: Cu-8AI load-displacement response and microstructure evolution
• [00:30:08] Summary and Conclusion

       _{PRESENTATION HIGHLIGHTS:}

• [00:00:00] What is the effect of the notch sharpness?
• [00:02:05] Have you taken into account the variations of the mechanical properties of the substrate at cryo temperatures?
• [00:04:13] Where you running the experiments in load or displacement control?
• [00:05:00] Do you think that grain boundary migration and rotation might have a higher probability of generation under shear than under uniaxial compression?