51:18
Mr. Crawford (former manager of the materials-testing laboratory at Johns Hopkins University) shows how to prepare a porous metal for high-speed nanoindentation. He provides recommendations for equipment and demonstrates all aspects of metallographic mounting and polishing.
Posted Friday, September 25, 2020
03:30
Measuring adhesion energy of dielectric thin films with KLA Nanoindenters provides unmatched data for improving the interface bond strength. This video provides a quick introduction to measuring adhesion energy.
Posted Friday, July 24, 2020
51:33
Traditional testing of laminate layers in a tire requires extensive dissection and can negatively impact the results. ProbeDMA™ eliminates the need to individually dissect the tire layers and allows the quantification of viscoelastic properties with high spatial resolution across layers and at interfaces. This session is a live demonstration of nanoindentation with the KLA nanoindenter to chara...
Posted Wednesday, July 8, 2020
01:00:52
Polymers are exceptionally complex materials—mechanical properties depend on chemistry, processing, and thermo-mechanical history. Instrumented indentation testing dramatically simplifies the mechanical characterization of polymers, because samples can be small and minimally prepared. On bulk materials, values for storage and loss modulus measured by indentation agree well with values measured ...
Posted Wednesday, July 8, 2020
30:37
Dr. Warren Oliver provides an overview of applications in nanoindentation and examines recent research on high resolution mechanical properties mapping.
Posted Monday, July 6, 2020
40:44
Dr. Erica Lilleodden provides an excellent in-depth analysis of strengthening mechanisms and deformation at the nanoscale.
Posted Monday, June 29, 2020
10:33
Intrinsic hardness of each constituves phases of PcBN were evaluated. Three main hardness peaks were assessed which attributed to TiN binder, cBN particles and composite like phase. Hardness of cBN particles may vary in terms of Boron/Nitrogen ratio.
Posted Sunday, June 28, 2020
19:49
Nitride films are ubiquitous in their use as hard, wear-resistant coatings. In this work, we help contribute to a scale-bridging model, helping build understanding of how initial plasma parameters affect the mechanical properties of the final coating system. To this end, we study the effect of transition metal species and oxygen content in transition metal aluminium (oxy)nitride coatings.
Frac...
Posted Sunday, June 28, 2020
49:59
The analysis of deformation and failure mechanisms in small-scale devices and thin films is a critical issue, not yet solved. In this presentation, we describe recent advances and developments for the measurement of fracture toughness at small scales by the use of nanoindentation-based methods, including beam-bending methods and micro-pillar splitting. A critical comparison of the techniques is...
Posted Sunday, June 28, 2020
08:56
Nanoindentation mapping is a potent tool for characterization of the mechanical properties. In this study we present our latest results on nanoindentation mapping of porous 316L stainless steel, fabricated by fused deposition of metals. Our findings suggest that the spectrum of capabilities of nanoindentation mapping could be extended to characterization of local porosity.
Posted Sunday, June 28, 2020
16:43
Technically pure cobalt with a phase transformation temperature of 700 K was investigated by high temperature nanoindentation. From the results of constant indentation strain rate experiments as well as strain rate jump tests the rate controlling deformation mechanisms could be derived. For the low temperature hcp phase from room temperature to 450 K a bcc-like deformation behavior was observed...
Posted Sunday, June 28, 2020
06:29
Hadi Maghsoudi provides an excellent presentation on twinning in magnesium materials using pillar compression and other supporting electron microscopy techniques.
Posted Sunday, June 28, 2020
