Influence of contact geometry on hardness behavior in nano-indentation

Experimental and Finite Element Simulation of Nano-indentation on Metal Matrix Composites: Hardness Prediction

The scientific importance of nanocomposites are being increased due to their improvedproperties. This paper is divided into two parts. First, Al-Al2O3 nanocomposite wasproduced by using ball milling technique followed by cold compaction and sintering.Microstructure and morphology studies were done through SEM, TEM, and EDX anal-ysis on the produced powder. The mechanical properties of the produ...

Influence of the shaping effect on hardness homogeneity by Vickers indentation analysis

Influence of the shaping effect on hardness homogeneity by Vickers indentation analysis B. Guillaume a,∗, F. Boschini a, A. Rulmont a, M. Ausloos b, R. Cloots a a Laboratoire de Chimie Inorganique Structurale, SUPRATECS, Department of Chemistry, Chemistry Inst. B6, University of Liège, Sart-Tilman, B-4000 Liège, Belgium b Physique Statistique et des Matériaux, SUPRATECS, Department of Physics, ...

Spherical Indentation Hardness of Shape Memory Alloys

On the contact behavior of micro-/nano-structured interface used in vertical-contact-mode triboelectric nanogenerators

The triboelectric nanogenerator (TENG) has attracted enormous amount of attention in the research community in recent years because of its simple design, high energy conversion efficiency, broad application areas, a wide materials spectrum, and low-temperature easy fabrication. A key factor that dictates the performance of the TENGs is the surface charge density, which can be taken as a standar...

Towards a Nano Geometry? Geometry and Dynamics on Nano Scale

This paper applies I.M. Gelfand’s distinction between adequate and non-adequate use of mathematical language in different contexts to the newly opened window of model-based measurements of intracellular dynamics. The specifics of geometry and dynamics on the mesoscale of cell physiology are elaborated in contrast to the familiar Newtonian mechanics and the more recent, but by now also rather we...