Results 61 to 70 of about 5,266 (303)

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

open access: yesAdvanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo   +3 more
wiley   +1 more source

Comparison Of Shear Banding In Bmgs Due To Thermal-Softening And Free Volume Creation

open access: yes, 2008
This paper reports a comparative study of shear banding in BMGs resulting from thermal softening and free volume creation. Firstly, the effects of thermal softening and free volume creation on shear instability are discussed.
Liu, LF (reprint author), Hunan Univ Sci & Technol, Hunan Prov Key Lab Hlth Maintenance Mech Equipmen, Xiangtan 411201, Peoples R China.   +4 more
core   +1 more source

Multiple shear-banding transitions in a supramolecular polymer solution [PDF]

open access: yes, 2006
We report on the nonlinear rheology of a reversible supramolecular polymer based on hydrogen bonding. The coupling between the flow-induced chain alignment and breakage and recombination of bonds between monomers leads to a very unusual flow behavior ...
Lettinga, Pavlik   +8 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Strain rate dependent shear banding behavior of a Zr-based bulk metallic glass composite

open access: yes, 2013
In this study, the uniaxial compressive experiments were conducted on a Zr39.6Ti33.9Nb7.6Cu6.4Be12.5 bulk metallic glass matrix composite with in situ formed ductile dendritic crystalline phase at quasistatic and dynamic strain rates.
Jiang MQ(蒋敏强)   +4 more
core   +1 more source

Shear-banding fluid(s) under time-dependent shear flows : Spatiotemporal dynamics (Part I )

open access: yes, 2021
International audienceWe report on the response of semi-dilute shear-banding wormlike micelles to time-dependent flow protocols such as step stress and shear startup.
Cardoso, Olivier   +6 more
core   +1 more source

Atomistic Origin of Rate-Dependent Serrated Plastic Flow in Metallic Glasses

open access: yesNanoscale Research Letters, 2008
Nanoindentation simulations on a binary metallic glass were performed under various strain rates by using molecular dynamics. The rate-dependent serrated plastic flow was clearly observed, and the spatiotemporal behavior of its underlying irreversible ...
Yao YG, Jiang SY, Jiang MQ, Dai LH
doaj   +1 more source

Characterization of Plastic Deformation in CuZr Metallic Glasses Subjected to the Rolling Process

open access: yesAdvances in Materials Science and Engineering, 2023
Using the rolling process, it is possible to induce multiple shear bands in the microstructure of metallic glasses (MGs) and improve the overall plasticity in the subsequent mechanical loadings.
Ramaswamy Sivaraman   +4 more
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Elastic flow instabilities and macroscopic textures in graphene oxide lyotropic liquid crystals

open access: yesnpj 2D Materials and Applications, 2021
Graphene oxide (GO) forms a well-aligned lyotropic liquid crystal (LC) phase in aqueous dispersions at relatively low concentrations. Under a remarkably wide range of shear rates, we report hitherto unobserved shear-induced polarized light image patterns,
Jacek K. Wychowaniec   +6 more
doaj   +1 more source

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