Results 91 to 100 of about 77,773 (362)

Evaluation of thin film material properties using a deep nanoindentation and ANN

open access: yesMaterials & Design, 2022
Due to the substrate effect, there are several difficulties to evaluate the material properties of thin films via nanoindentation. In this study, an inverse analysis method based on an artificial neural network (ANN) is proposed to obtain free-volume ...
Giyeol Han   +2 more
doaj  

Indentation toughness of Al2O3-CNT nanocomposites [PDF]

open access: yes, 2011
In the last few years new ceramic/carbon nanotube composites have been developed and a number of authors have reported improved mechanical and functional properties in the case of ceramic/CNT composites compared to the monolithic materials.
Dusza, Ján   +3 more
core  

Supramolecular Liquid Crystal Elastomer Adhesives: Role of Internal Damping and Hydrogen Bonding

open access: yesAdvanced Functional Materials, EarlyView.
The adhesion strength can be significantly enhanced through the molecular design of supramolecular liquid crystal elastomers (LCEs) that combine high internal damping from mesogen reorientation with abundant hydrogen‐bonding moieties. Solvent vapor annealing enables reversible, non‐thermal control of adhesion, offering potential for heat‐sensitive ...
Subi Choi, Suk‐kyun Ahn
wiley   +1 more source

Mechanical properties of Al2O3 inverse opals by means of nanoindentation [PDF]

open access: yes, 2016
In order to understand the mechanical behaviour of Al2O3 inverse opals, nanoindentation techniques have been implemented in material layers with three different microstructures, in terms of hollow or polystyrene spheres, with Al2O3 shells of distinct ...
Alcubilla González, Ramón   +6 more
core   +2 more sources

Hot nanoindentation in inert environments [PDF]

open access: yesReview of Scientific Instruments, 2010
An instrument capable of performing nanoindentation at temperatures up to 500 °C in inert atmospheres, including partial vacuum and gas near atmospheric pressures, is described. Technical issues associated with the technique (such as drift and noise) and the instrument (such as tip erosion and radiative heating of the transducer) are identified and ...
Trenkle, Jonathan C.   +2 more
openaire   +5 more sources

Generalizing Gelatin Methacryloyl Granular Hydrogel Fabrication Using Stable Microgels with Predictable Stiffness

open access: yesAdvanced Healthcare Materials, EarlyView.
Gelatin methacryloyl (GelMA) granular hydrogel scaffolds (GHS) are fabricated using a generalized two‐step photocrosslinking approach to yield stable (non‐dissolving) microgels suitable for in situ covalent assembly under physiological conditions. A phase diagram is developed to define the interplay between individual microgel stability and scaffold ...
Yuanhui Xiang   +4 more
wiley   +1 more source

Unraveling indentation-induced slip steps in austenitic stainless steel

open access: yesMaterials & Design, 2019
Nanoindentation has been used intensively during the last decades to characterize experimentally the elastic and plastic material properties of phases at the microscale.
Wenzhen Xia   +2 more
doaj  

Relationship between Nanomechanical Responses of Interfacial Intermetallic Compound Layers and Impact Reliability of Solder Joints

open access: yesNanomaterials, 2020
This study aims to evaluate solder joint reliability under high speed impact tests using nanoindentation properties of intermetallic compounds (IMCs) at the joint interface. Sn–Ag based solder joints with different kinds of interfacial IMCs were obtained
Jenn-Ming Song   +4 more
doaj   +1 more source

Nanoindentation creep behavior of Cu–Zr metallic glass films

open access: yes, 2018
The size-dependent hardness, strain-rate sensitivity (SRS) and shear transformation zone (STZ) volume of co-sputtered Cu–Zr metallic glass films with film thickness h spanning from 1000 to 3000 nm were systematically investigated by nanoindentation creep
Yaqiang Wang   +5 more
semanticscholar   +1 more source

Fluctuating Nonlinear Spring Model of Mechanical Deformation of Biological Particles [PDF]

open access: yes, 2015
We present a new theory for modeling forced indentation spectral lineshapes of biological particles, which considers non-linear Hertzian deformation due to an indenter-particle physical contact and bending deformations of curved beams modeling the ...
Gijs J L Wuite   +6 more
core   +4 more sources

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