Results 71 to 80 of about 54,508 (275)

Instability and morphology of polymer solutions coating a fiber

, 2012
We report an experimental study on the dynamics of a thin film of polymer solution coating a vertical fiber. The liquid film has first a constant thickness and then undergoes the Rayleigh-Plateau instability which leads to the formation of sequences of ...
Boulogne, François, Giorgiutti-Dauphiné, Frédérique, Pauchard, Ludovic   +2 more
core   +3 more sources

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

Thinning or thickening? Multiple rheological regimes in dense suspensions of soft particles

, 2014
The shear rheology of dense colloidal and granular suspensions is strongly nonlinear, as these materials exhibit shear-thinning and shear-thickening, depending on multiple physical parameters.
Berthier, Ludovic, Ikeda, Atsushi, Kawasaki, Takeshi   +2 more
core   +3 more sources

Viscoelastic gels of guar and xanthan gum mixtures provide long-term stabilization of iron micro- and nanoparticles [PDF]

, 2012
Iron micro- and nanoparticles used for groundwater remediation and medical applications are prone to fast aggregation and sedimentation. Diluted single biopolymer water solutions of guar gum (GG) or xanthan gum (XG) can stabilize these particles for few ...
A Molfetta Di, A Tiraferri, AB Rodd, C Noubactep, D Kim, D Risica, Dingqi Xue, DL Huber, E Choppe, E Dalla Vecchia, E Dalla Vecchia, F García-Ochoa, FS Freyria, G Schramm, ICM Dea, ICM Dea, IT Norton, J Amundarain, JA Casas, K Hyun, KJ Cantrell, L Zhong, M Iijima, M Milas, M Oostrom, MJ Truex, ML Williams, PHT Uhlherr, PJ Flory, Rajandrea Sethi, RHW Wientjes, S Comba, S Comba, T Phenrat, TG Mezger, V Zolla, VB Pai, W Zhang, X Li, Y Qiang, Z Xiu   +40 more
core   +1 more source

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

Advanced 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, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Jeffery orbits in shear-thinning fluids [PDF]

Physics of Fluids, 2019
We investigate the dynamics of a prolate spheroid in a shear flow of a shear-thinning Carreau fluid. The motion of a prolate particle is developed analytically for asymptotically weak shear thinning and then integrated numerically. We find that shear-thinning rheology does not lift the degeneracy of Jeffery orbits observed in Newtonian fluids, but the ...
S. Arman Abtahi, Gwynn J. Elfring
openaire   +2 more sources

Acoustic Heating Produced in the Thermoviscous Flow of a Shear-Thinning Fluid

Archives of Acoustics, 2013
This study is devoted to the instantaneous acoustic heating of a shear-thinning fluid. Apparent viscosity of a shear-thinning fluid depends on the shear rate. That feature distinguishes it from a viscous Newtonian fluid.
Anna PERELOMOVA
doaj  

Shear-Thinning Characteristics of Nematic Liquid Crystals Doped with Nanoparticles

Crystals, 2016
This work investigated changes in the physical properties of nematic liquid crystals (NLCs) upon doping with nanoparticles. Shear viscosity measurements demonstrated the shear-thinning of typical NLCs following the addition of small amounts of ...
Munehiro Kimura, Zur Ain Binti Hanafi, Tatsuya Takagi, Ryosuke Sawara, Shuji Fujii   +4 more
doaj   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Velocity contrasts enhancement for shear thinning solutions flowing in a rough fracture [PDF]

, 2007
Flow and transport are studied in transparent model fractures with rough complementary self-affine walls with a relative shear displacement $\vec{u}$. The aperture field is shown to display long range correlations perpendicular to $\vec{u}$: for flow in ...
Auradou, Harold, Boschan, Alejandro, Chertcoff, Ricardo, Gabbanelli, Susana, Hulin, Jean-Pierre, Ippolito, Irene   +5 more
core   +2 more sources