Results 31 to 40 of about 857 (191)

Production and characterization of the Cr35Fe35V16.5Mo6Ti7.5 high entropy alloy

open access: yesNuclear Materials and Energy, 2022
The microstructure, thermal stability, and mechanical properties of a novel Cr35Fe35V16.5Mo6Ti7.5 high-entropy alloy were studied. The mechanical properties were mapped by nanoindentation, and the results correlated with the microstructure and the ...
Y. Ortega   +4 more
doaj   +1 more source

Ti–12Ta–6Zr/xAl2O3 bioinert load-bearing orthopedic materials by spark plasma sintering: processing, microstructure, mechanical properties, and nanoindentations

open access: yesNanotechnology Reviews
Bioinert materials for load-bearing orthopedic applications were fabricated using spark plasma sintering (SPS). The effects of the alumina (Al2O3) nanoparticle content and fabrication process conditions on the microstructure, density, hardness, dynamic ...
Daoush Walid M.   +4 more
doaj   +1 more source

Strain Rate Effect on the Ductile Brittle Transition in Grinding Hot Pressed SiC Ceramics

open access: yesMicromachines, 2020
Surface and subsurface damage are still persistent technical challenges for the abrasive machining hot pressed-silicon carbide (HP-SiC) ceramics. Therefore, an investigation of the material behavior and critical depth of ductile to brittle transition ...
Pai Huang, Jiaqi Zhang
doaj   +1 more source

A gradient elasticity approach to the indentation size effect at very small depths

open access: yesJournal of the Mechanical Behavior of Materials, 2011
Over the past two decades, the indentation size effect (ISE) has been studied extensively by several authors. A common point among all these studies has been the premise that during the indentation process sufficient plastic deformation is developed so ...
Mokios George P., Aifantis Elias C.
doaj   +1 more source

Scanning Tunneling Microscopy of Nanoindentations [PDF]

open access: yes, 1991
A scanning tunneling microscopy (STM) study of low load indentations into Si, GaAs and Au is presented. Compared with standard micrographs obtained through optical microscopy and scanning electron microscopy, the STM images show greatly improved ...
Timothy P. Weihs, Martin R. Castell
core   +1 more source

Regional Nanoindentation Properties in Different Locations on the Mouse Tibia From C57BL/6 and Balb/C Female Mice

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
The local spatial heterogeneity of the material properties of the cortical and trabecular bone extracted from the mouse tibia is not well-known.
Valentina Pepe   +7 more
doaj   +1 more source

AFM Nanoindentations of Diatom Biosilica Surfaces [PDF]

open access: yes, 2016
Diatoms have intricately and uniquely nanopatterned silica exoskeletons (frustules) and are a common target of biomimetic investigations. A better understanding of the diatom frustule structure and function at the nanoscale could provide new insights for
James G. Mitchell (165091)   +4 more
core   +1 more source

Investigations of Phase Transformation in Monocrystalline Silicon at Low Temperatures via Nanoindentation

open access: yesScientific Reports, 2017
Nanoindentations of monocrystalline silicon are conducted to investigate the phase transformation process at a temperature range from 292 K to 210 K. The load-displacement curves are obtained and the residual indents are detected by Raman spectra.
Shunbo Wang   +7 more
doaj   +1 more source

Evaluation of the nanostructure of cervical third cementum in health and chronic periodontitis: An in vitro study

open access: yesJournal of Indian Society of Periodontology, 2014
Background: During the progression of periodontal disease, the cementum undergoes alterations in its structure and composition. Understanding the nanostructure of cementum, in terms of its mechanical properties, will provide an insight into the milieu ...
Subramoniam Sundaram   +3 more
doaj   +1 more source

Efecto del comportamiento termo-higromecánico a macroescala de madera bajo compresión perpendicular a la fibra en las propiedades nanomecánicas de su estructura celular

open access: yesMaderas: Ciencia y Tecnología, 2014
El objetivo de este estudio fue evaluar y correlacionar el efecto termo-higromecánico a macroescala de las especies de Pinus radiata D. Don y de Eucalyptus nitens (Deane & Maiden) con las propiedades nanomecánicas evaluadas en la estructura celular, con ...
Daniela Sepúlveda   +4 more
doaj  

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