01:14:40
Dr. W.C. Oliver and Dr. G.M. Pharr's 1992 publication titled ‘An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments’ is the most cited paper in materials science with over 22,000 citations to date. This webinar provides an opportunity to learn about nanoindentation directly from Dr. Warren Oliver, the co-author of the orig...
Posted Tuesday, April 14, 2020
01:08:06
Valid hardness measurements require actually causing plasticity. Thus, we must know the threshold and locus for the onset of plasticity. In this session, we use the Tresca criterion to understand the onset of plasticity for both Hertzian and conical indentation. These criteria guide our understanding of the minimum depth at which one can measure a meaningful hardness.
Posted Thursday, April 9, 2020
56:49
Knowledge of Young’s modulus is essential for the design and control of the extensive fractures required for harvesting natural gas from shale formations. Nanoindentation of drill fragments provides an economical and localized way to measure Young’s modulus of shale. This session is a live demonstration of standardized nanoindentation with the KLA iMicro nanoindenter to characterize shale. Ms. ...
Posted Wednesday, September 11, 2019
53:38
Low-carbon steels are the first option when designing with steel. They offer good machinability and excellent weldability. To some extent, the strength and ductility can be manipulated by various thermal and mechanical processes, such as working, annealing, and carburization. This session is a live demonstration of standardized nanoindentation with the KLA iMicro nanoindenter to characterize co...
Posted Wednesday, July 10, 2019
