Results 31 to 40 of about 229,679 (336)

Droplet migration in a Hele-Shaw cell: Effect of the lubrication film on the droplet dynamics

, 2016
Droplet migration in a Hele--Shaw cell is a fundamental multiphase flow problem which is crucial for many microfluidics applications. We focus on the regime at low capillary number and three-dimensional direct numerical simulations are performed to ...
Fullana, Jose-Maria, Josserand, Christophe, Ling, Yue, Popinet, Stéphane   +3 more
core   +4 more sources

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

Advanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim, Antônio Rogério de Souza, Tatiana Bendo, Aloisio Nelmo Klein, Rodrigo Perito Cardoso   +4 more
wiley   +1 more source

Pseudo-Landau levels splitting triggers quantum friction at folded graphene edge

Nature Communications
From the construction of monumental pyramids to the manipulation of minuscule molecules, the utilization of friction has been inevitable, thereby driving rapid technological advancement.
Xinchen Gao, Zhenbin Gong, Hongli Li, Zhao Liu, Weishan Yan, Qingkai Zheng, Kexin Ren, Wenchao Wu, Junyan Zhang   +8 more
doaj   +1 more source

Tribological properties of MoS2 coating for ultra-long wear-life and low coefficient of friction combined with additive g-C3N4 in air

Friction, 2020
The solid lubricant MoS2 demonstrates excellent lubricating properties, but it spontaneously oxidizes and absorbs moisture in air, and thus results in poor wear resistance and short wear-life.
Yupeng Zhang, Panpan Li, Li Ji, Xiaohong Liu, Hongqi Wan, Lei Chen, Hongxuan Li, Zhiliang Jin   +7 more
doaj   +1 more source

Recent progress of bioinspired cartilage hydrogel lubrication materials

Biosurface and Biotribology, 2022
Hydrogels have been considered as potential candidates for cartilage replacement due to their high‐water content, extreme network hydration, excellent biocompatibility and tunable mechanical properties.
Xiaoduo Zhao, Weiyi Zhao, Yunlei Zhang, Xiaoqing Zhang, Zhengfeng Ma, Rui Wang, Qiangbing Wei, Shuanhong Ma, Feng Zhou   +8 more
doaj   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Ultrastrong eutectogels engineered via integrated mechanical training in molecular and structural engineering

Nature Communications
Ultrastrong gels possess generally ultrahigh modulus and strength yet exhibit limited stretchability owing to hardening and embrittlement accompanied by reinforcement.
Chenggong Xu, Ao Xie, Haiyuan Hu, Zhengde Wang, Yange Feng, Daoai Wang, Weimin Liu   +6 more
doaj   +1 more source

Mo content-depended competition between Cr2O3 enrichment and selective dissolution of CoCrFeNiMo x high entropy alloys

npj Materials Degradation, 2022
The corrosion and passivation behavior of the as-cast CoCrFeNiMo x (x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0) high entropy alloys (HEAs) are investigated. With the addition of Mo, increasing Mo and Cr riched σ phase precipitates from the primary FCC phase. The
Qian Hu, Cheng-Ping Ye, Shang-Chen Zhang, Xian-Zong Wang, Cheng-Feng Du, Haifeng Wang   +5 more
doaj   +1 more source

The effect of boundary slip on elastohydrodynamic lubrication [PDF]

, 2014
Pressure-induced boundary slip in elastohydrodynamic lubrication, on application of an oleophobic coating, is measured by photobleached-fluorescence imaging velocimetry.
Ponjavic, A, Wong, JSS
core   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source