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Redefining Nanoindentation - Challenges and Opportunities

In this interview, KLA's Bryan Crawford explains everything there is to know about nanoindentation, the challenges that the field currently faces, and how they can be overcome. ....

Bryan Crawford , Louis Castel , Analytical Services , Bryan Crawfordproduct Marketing Manager , Inview Method Editor , Nano Indenter , Product Marketing Manager , Applications Engineer ,

"Tribological performance of a cost-effective CrFeNiAl0.3Ti0.3 high ent" by Cuong Nguyen, Anh Kiet Tieu et al.

A cost-effective HEA based self-lubricating composite was fabricated using CrFeNiAl0.3Ti0.3 as matrix and Ag as solid lubricant by hot pressing sintering (HPS), with Ag particles uniformly dispersed along grain boundaries of HEA matrix. Tribological tests revealed a remarkable impact of Ag tribo-film in reducing coefficient of friction and wear of the composites, from RT to 600 °C. 750 °C was a turning point for the change in wear mechanism from abrasive to oxidative wear. The formation of a subsurface tribo-layer and a protective oxide layer on the worn surface of CrFeNiAl0.3Ti0.3 HEA led to low wear. At 900 °C, associated with the absence of subsurface tribo-layer, Ag is not found in the oxide layer, causing an increase in the wear of composite. ....

Friction And Wear , High Entropy Alloys , High Temperature , Olid Lubricating Composites ,

MIT team reports giant response of semiconductors to light

An MIT team reports a giant response of semiconductors to light and explains the atomic origins of the phenomenon. The materials’ stiffness increases up to 40 percent in the reversible effect. ....

Yuying Zhou , Jiahao Dong , Sophia Chen , Rafael Jaramillo , Bilal Azhar , Yifei Li , Ju Li , Alan Schwartzman , Haowei Xu , Office Of Naval Research , Battelle Energy Alliance Professor In Nuclear Science , Department Of Materials Science , Materials Research Laboratory , Shanghai Institute Of Applied Physics , Thomas Lord Associate Professor , Materials Science , Battelle Energy Alliance Professor , Nuclear Science , Both Jaramillo , Materials Research , Physical Review , Physics Magazine , Shanghai Institute , Applied Physics , Massachusetts Institute Of Technology , It News ,

What is Nanoindentation?

Nanoindentation is a method for measuring the hardness, plasticity, and elasticity index of minute quantities of materials. Read more about this analysis technique on AZoNano. ....

Eugenock Shutterstock , Usman Ahmed , Usman Ahmedfeb , Mechanical Engineering , Applied Mechanics Reviews , Materials Today , Eco Efficient Construction ,

Atomic Force Microscopy-based Nanoindentation: An Overview

AFM nanoindentation has application in surface height topology mapping and 3D high-resolution imaging, notably in facilitating in situ quantification of the residual indents’ shape. ....

Gorodenkoff Shutterstock , Parva Chhantyal , Beilsteinj Nanotechnol , Atomic Force Microscopy , Nanoindentation To Quantify Mechanical Properties Of Nano , Journal Of Materials Research , Force Microscopy , Veeco Dimension , Measurement Science , Metal Organic Framework , Vibrational Modes , Terahertz Physical Phenomena Underpinning , Micron Sized Crystals , Organic Framework ,