Results 21 to 30 of about 433,589 (289)

A porous nanotube network structure of metallic carbon

open access: yesResults in Physics, 2021
A porous nanotube network structure of carbon allotrope was designed, denoted as P4/mmm C96. Besides its structure similar to carbon nanotubes, the most interesting thing about P4/mmm C96 is that its band structure is metallic. The shear modulus G, Young’
Mengjiang Xing, Xiaozhen Li
doaj   +1 more source

Nanoindentation of bone: Comparison of specimens tested in liquid and embedded in polymethylmethacrylate [PDF]

open access: yes, 2004
Elastic modulus of bone was investigated by nanoindentation using common methods of sample preparation, data collection, and analysis, and compared to dynamic mechanical analysis (DMA: three-point bending) for the same samples. Nanoindentation (Berkovich,
Boyde, A, Bushby, AJ, Ferguson, VL
core   +1 more source

Osteoarthritis severely decreases the elasticity and hardness of knee joint cartilage: A nanoindentation study [PDF]

open access: yes, 2019
The nanoindentation method was applied to determine the elastic modulus and hardness of knee articular cartilage. Cartilage samples from both high weight bearing (HWB) and low weight bearing (LWB) femoral condyles were collected from patients diagnosed ...
Giersig, Michael   +4 more
core   +1 more source

Study on dynamic and static elastic moduli of shale oil by different loading methods

open access: yesUnconventional Resources, 2023
Experiments on the dynamic and static elastic parameters under distinct loading conditions help clarify the effects of loading rate and strain amplitude on dynamic and static elastic moduli, and gain further insight into the moduli.
Huiyuan Bian   +3 more
doaj   +1 more source

Mechanical characterization of solution-derived nanoparticle silver ink thin films [PDF]

open access: yes, 2007
Mechanical properties of sintered silver nanoparticles are investigated via substrate curvature and nanoindentation methods. Substrate curvature measurements reveal that permanent microstructural changes occur during initial heating while subsequent ...
Greer, Julia R., Street, Robert A.
core   +1 more source

Combined Effect of Silica Fume and Steel Fiber on Modulus of Elasticity of High Performance Concrete [PDF]

open access: yesEngineering and Technology Journal, 2015
Concrete elastic modulus is a basic property required for the appropriatepredicting of its basic behavior and for its correct implementation in a variety ofconstructional and engineering applications.
Muntadher J. Taher   +2 more
doaj   +1 more source

Elastic modulus of halloysite nanotubes [PDF]

open access: yesNanotechnology, 2013
This work reports measurements of the elastic modulus of halloysite nanotubes. Nanoscale three-point bending tests were performed on individual nanotubes using an atomic force microscope. Nanotubes exhibit elastic behaviour at small deformations. The stiffness of the tubes, and hence their elastic modulus, was deduced from force curve measurements ...
B, Lecouvet   +4 more
openaire   +2 more sources

Nanoscale spatial mapping of mechanical properties through dynamic atomic force microscopy

open access: yesBeilstein Journal of Nanotechnology, 2019
Dynamic atomic force microscopy (AFM) was employed to spatially map the elastic modulus of highly oriented pyrolytic graphite (HOPG), specifically by using force modulation microscopy (FMM) and contact resonance (CR) AFM.
Zahra Abooalizadeh   +2 more
doaj   +1 more source

Anelastic relaxor behavior of Pb(Mg1/3Nb2/3)O3 [PDF]

open access: yes, 2013
Elastic storage modulus and loss of relaxor lead magnesium niobate ceramics, Pb(Mg1/3Nb2/3)O3, have been measured with dynamic mechanical analyzer in single cantilever mode in the temperature range from 170 K to 320 K and at frequencies from 0.1 Hz to 50
Damjanovic, Dragan, Ursic, Hana
core   +2 more sources

Low cycle fatigue properties assessment and damage influence on DP 500/800 steel sheet

open access: yesJournal of Materials Research and Technology, 2023
A dual phase (DP500/800) steel sheet (1.6 mm thickness) was evaluated by means of low cycle fatigue (LCF). The fatigue properties of the material were assessed by means of the cyclic elastic modulus determination at half-life as well as by the plastic ...
Walter F. González-Zapatero   +3 more
doaj   +1 more source

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