Results 71 to 80 of about 9,866 (290)

Molecular Dynamics Simulation on Mechanical Response of Nano-indentation for Molybdenum-rhenium Alloy

Yuanzineng kexue jishu
Molybdenum-rhenium (Mo-Re) alloys are promising candidates for structural materials of advanced nuclear reactors, endowing with high melting point, good strength and plasticity, outstanding compatibilities with nuclear fuels and alkali metal coolant. The
WANG Jiayu1, QIN Menglu1, YANG Yexin1, TONG Zhenfeng1, LI Yawen2, LI Xiaochun2, LIU Yunfei1, SUN Lu1
doaj   +1 more source

Cell Calcification Models and Their Implications for Medicine and Biomaterial Research

Advanced Healthcare Materials, EarlyView.
Calcification, is the process by which the tissues containing minerals are formed, occurring during normal physiological processes, or in pathological conditions. Here, it is aimed to give a comprehensive overview of the range of cell models available, and the approaches taken by these models, highlighting when and how methodological divergences arise,
Luke Hunter, Caterina Vanelli Coralli, Robert Dzhanaev, Aaron Morgan, Willi Jahnen‐Dechent, Sergio Bertazzo   +5 more
wiley   +1 more source

Quantitative Hardness Measurement by Instrumented AFM-indentation [PDF]

Journal of Visualized Experiments, 2016
In this work, a combination of amplitude-modulated non-contact atomic force microscopy and atomic force spectroscopy is applied for instrumented hardness measurements on an Au(111) surface with atomistic resolution of single plasticity events. A careful experimental procedure is described that includes the force sensor selection, its calibration, the ...
openaire   +2 more sources

Transformative Bioactive Wear Resistant Ti3Au:N and Ti3Au:O Coatings for Medical Implants and Devices

Advanced Healthcare Materials, EarlyView.
Coatings of titanium‐gold are grown in nitrogen and oxygen environments via magnetron sputtering to simultaneously enhance their biotribological and antibacterial properties. The coatings are highly crystalline with superhard scratch‐resistant surfaces and wear rates 20 times lower than the bare Ti‐6Al‐4V substrate.
Cecil Cherian Lukose, Ioannis Anestopoulos, Iraklis‐Stavros Panagiotidis, Guillaume Zoppi, Anna M Black, Lynn G. Dover, Leon Bowen, Ángel Serrano‐Aroca, Lorenzo Mendola, Davide Morrone, Mihalis I. Panayiotidis, Martin Birkett   +11 more
wiley   +1 more source

Micromechanical behavior of (CoCrNi)94Al3Ti3 medium-entropy alloy

Journal of Materials Research and Technology
The micromechanical behavior of (CoCrNi)94Al3Ti3 medium-entropy alloy (MEA) with and without Al2O3 nanoparticles was investigated by nanoindentation, microhardness, and microscratch tests.
Ming Liu, Zhitong Xu, Rui Liang, Shanhong Wan, Fuqian Yang, Jinyang Jiang   +5 more
doaj   +1 more source

Indentation hardness evaluation of cathodic arc deposited thin hard coatings

Surface and Coatings Technology, 2001
Abstract One trend in the development of wear-resistant vapour deposited coatings is to make them increasingly harder and thinner, by improvement and optimisation of the deposition processes. A complex interdependence exists between the individual properties of a coating and a substrate on the one hand, and those of the ‘composite’ coated system on ...
Tuck JR, Korsunsky AM, Bhat DG, Bull SJ
openaire   +4 more sources

Biomimetic Fibrinogen Nanofiber Scaffolds for Vascular Hematopoietic Stem Cell Niche Engineering

Advanced Healthcare Materials, EarlyView.
This study presents an advanced in vitro model of the vascular hematopoietic stem cell niche using self‐assembled fibrinogen nanofibers, mimicking the basement membrane in bone marrow (BM) sinusoids. The model supports the coculture of microvascular endothelial cells, stromal cells, and hematopoietic stem and progenitor cells, providing insights into ...
Sophia Lena Meermeyer, Arundhati Joshi, Constantin von Kaisenberg, Dorothea Brüggemann, Cornelia Lee‐Thedieck   +4 more
wiley   +1 more source

In Vivo Skin 3‐D Surface Reconstruction and Wrinkle Depth Estimation Using Handheld High Resolution Tactile Sensing

Advanced Healthcare Materials, EarlyView.
A compact handheld GelSight probe reconstructs in vivo 3‐D skin topography with micron‐level precision using a custom elastic gel and a learning‐based surface normal to height map pipeline. The device quantifies wrinkle depth across various body locations and detects changes in wrinkle depth following moisturizer application.
Akhil Padmanabha, Arpit Agarwal, Catherine Li, Austin Williams, Dinesh K. Patel, Sankalp Chopkar, Achu Wilson, Ahmet Ozkan, Wenzhen Yuan, Sonal Choudhary, Arash Mostaghimi, Zackory Erickson, Carmel Majidi   +12 more
wiley   +1 more source

Factors Resulting in Micron Indentation Hardness Descending in Indentation Tests

Chinese Journal of Aeronautics, 2009
AbstractSome factors that affect the experimental results in nanoindentation tests such as the contact depth, contact area, load and loading duration are analyzed in this article. Combining with the results of finite element numerical simulation, we find that the creep property of the tested material is one of the important factors causing the micron ...
Min, Li, Weimin, Chen
openaire   +1 more source

Ti6Al4V‐Bioglass‐Copper Composites for Load‐Bearing Implants

Advanced Healthcare Materials, EarlyView.
We have designed and manufactured a novel Ti64‐based composite by adding 45S5 bioglass (BG) and copper (Cu). Adding BG on titanium improves wear resistance and biocompatibility, whereas Cu addition improves mechanical strength while providing inherent lifelong bacterial resistance.
Lochan Upadhayay, Bryson White, Susmita Bose, Amit Bandyopadhyay   +3 more
wiley   +1 more source