Results 61 to 70 of about 7,567 (164)

Response of Viral Shells under Nano-Indentation

Biophysical Journal, 2009
Viral capsids are self assembled nano-containers with remarkable material properties. They combine extreme simplicity of construction with both, toughness and resilience protecting the viral genome, and with complex functionality that the virus needs for targeting and infecting new host cells.
Ivanovska, Irena L., de Pablo, Pedro J., Miranda, Roberto, Gibbons, Melissa M., Michel, Jean-Philipe, Wuite, Gijs J.L., MacKintosh, Fred C., Carrascosa, Jose L., Klug, William S., Bruinsma, Robijn F., Knobler, Charles M., Schmidt, Christoph F.   +11 more
openaire   +1 more source

Does silica concentration and phytolith ultrastructure relate to phytolith hardness?

Biosurface and Biotribology, 2017
Grasses are an important part of the forage of many herbivorous mammals and their phytoliths have long been regarded as the most important agent of tooth wear. Recent work has challenged this “paradigm” in finding evidence 1.
Ellen Schulz-Kornas, Caroline Braune, Daniela E. Winkler, Thomas M. Kaiser   +3 more
doaj   +1 more source

On the Mechanics and Physics in the Nano-Indentation of Silicon Monocrystals.

JSME International Journal Series A, 1999
This paper aims to investigate some fundamental problems of mechanics and physics in the nano-indentation of silicon monocrystals with the aid of molecular dynamics analysis. The study showed that inelastic deformation of silicon monocrystals is solely caused by amorphous phase transformation.
ZHANG, Liang-Chi, TANAKA, Hiroaki
openaire   +2 more sources

In Situ Nano-Indentation of a Gold Sub-Micrometric Particle Imaged by Multi-Wavelength Bragg Coherent X-ray Diffraction. [PDF]

Materials (Basel), 2022
Lauraux F, Labat S, Richard MI, Leake SJ, Zhou T, Kovalenko O, Rabkin E, Schülli TU, Thomas O, Cornelius TW.   +9 more
europepmc   +1 more source

Scratch hardness of diamond-like carbon (DLC) coatings deposited by closed-field unbalanced magnetron sputtering

AIP Advances
Thin coatings are subject to scratch and wear damage in tribological applications. Scratch hardness numbers are used to evaluate scratch and abrasive wear resistance.
Yan-yan Lin, Zhi-jun Deng, Zhu-rong Dong
doaj   +1 more source

The Ni₃Al/Ni Interfacial Contribution to the Indentation Size Effect of Ni-Based Single-Crystal Superalloys

Solids
Hardness decreases as indentation depth increases at both the nano- and micro-meter scales. By incorporating interfacial contributions, the indentation size effect can provide valuable information on the deformation behaviors of Ni-based single-crystal ...
Zhiwei Zhang, Xingyi Zhang, Rong Yang, Jun Wang, Chunsheng Lu   +4 more
doaj   +1 more source

Investigation of in-plane visco-deformation in PMMA indentation via TLV model calibrated with tensile specimens

Journal of Materials Research and Technology
Time-dependent in-plane deformation in PMMA indentation is investigated via two-layer visco-plasticity model (TLV). The parameters of TLV model for PMMA were calibrated for tensile specimens using finite element analysis (FEA) and an optimization ...
Bohyeon Lee, Giyeol Han, Hyungyil Lee
doaj   +1 more source

Simulation and Experimental Study on Stress Relaxation Response of Polycrystalline γ-TiAl Alloy under Nanoindentation Based on Molecular Dynamics

Micromachines
This study employed nano-indentation technology, molecular dynamics simulation, and experimental investigation to examine the stress relaxation behaviour of a polycrystalline γ-TiAl alloy.
Junye Li, Chunyu Wang, Jianhe Liu, Xiwei Dong, Jinghe Zhao, Ying Chen   +5 more
doaj   +1 more source

Calibration and application of elastic modulus of particles using nano- indentation tests

Yantu gongcheng xuebao
The discrete element method (DEM) plays an important role in studying the micro-mechanism of mechanical responses of granular materials, such as sand and gravel.
CHEN Feng 1 , HUANG Hongbo 2, LUO Gang 2, LI Baojian 3, WANG Zhongkuan 2, ZHANG Tao 4, 5, WEI Xiao 4, YANG Zhongxuan 4
doaj   +1 more source

Polyamide Surface Layer Nano-Indentation and Thermal Properties Modified by Irradiation. [PDF]

Materials (Basel), 2020
Ovsik M, Manas M, Stanek M, Dockal A, Vanek J, Mizera A, Adamek M, Stoklasek P.   +7 more
europepmc   +1 more source