Results 1 to 10 of about 45,755 (120)

2000W Blue laser directed energy deposition of AlSi7Mg: process parameters, molten pool characteristics, and appearance defects

open access: yesVirtual and Physical Prototyping, 2023
Aluminium alloys are difficult to be manufactured by directed energy deposition (DED) with the widely used infrared laser because of the low absorptivity.
Zijue Tang   +9 more
doaj   +1 more source

An In-Situ Formed Tunneling Layer Enriches the Options of Anode for Efficient and Stable Regular Perovskite Solar Cells

open access: yesNano-Micro Letters, 2022
Highlights It is first disclosed that the key to the efficient regular Ag-perovskite solar cells (PSCs) is a tunneling layer (silver iodide, AgI) that is in situ formed by the natural reaction between Ag and the migrated iodide.
Xuesong Lin   +10 more
doaj   +1 more source

Effect of pretreatment on microstructural stability and mechanical property in a spray formed Al-Zn-Mg-Cu alloy

open access: yesMaterials & Design, 2021
Aluminum alloys fabricated by spray forming (SF) technology are commonly followed by hot-working without heat treatments. A new approach that is a pretreatment before hot-working is proposed in the present work.
Zhiping Wang   +8 more
doaj   +1 more source

Realizing reversible phase transformation of shape memory ceramics constrained in aluminum

open access: yesNature Communications, 2023
Small-scale shape memory ceramics exhibit superior shape memory or superelasticity properties, while their integration into a matrix material and the subsequent attainment of their reversible tetragonal-monoclinic phase transformations remains a ...
Wangshu Zheng   +7 more
doaj   +1 more source

State of the Art of Non-Invasive Electrode Materials for Brain–Computer Interface

open access: yesMicromachines, 2021
The brain–computer interface (BCI) has emerged in recent years and has attracted great attention. As an indispensable part of the BCI signal acquisition system, brain electrodes have a great influence on the quality of the signal, which determines the ...
Haowen Yuan   +7 more
doaj   +1 more source

Understanding the creep property of heat-resistant Al alloy by analyzing eutectic phase/matrix interface structures

open access: yesMaterials Research Letters, 2023
Interface characteristics are of great importance in mechanical performance for multi-phases heat-resistant Al alloys. Herein, Al3Sc precipitates were created at both Al/Al9FeNi interface and Al matrix inside Al–Fe-Ni eutectic alloy by microalloyed Sc ...
Zeyu Bian   +7 more
doaj   +1 more source

Uniform Spherical Graphene/Monocrystal-Copper Powder Fabricated by the Low Wettability of Liquid/Solid Interface

open access: yesKONA Powder and Particle Journal, 2018
Uniform spherical graphene/monocrystal-copper powder is fabricated by melting bulk laminated composite. Graphene, in the form of reduced graphene oxide (rGO), is uniformly dispersed on the surface of monocrystal Cu particle. A mechanism is proposed based
Jimin Lyu   +7 more
doaj   +1 more source

Effect of interfacial thermal mismatch on mechanical properties of metal matrix composites

open access: yesFenmo yejin jishu, 2023
The interfacial thermal mismatch stress will generate at the reinforcement/metal matrix heterogeneous interfaces during the cooling process of the metal matrix composites (MMCs), due to the large mismatch of the coefficient of thermal expansion (CTE ...
HOU Yanan   +3 more
doaj   +1 more source

Active oxygen species mediate the iron-promoting electrocatalysis of oxygen evolution reaction on metal oxyhydroxides

open access: yesNature Communications, 2023
Iron is an extraordinary promoter to impose nickel/cobalt (hydr)oxides as the most active oxygen evolution reaction catalysts, whereas the synergistic effect is actively debated. Here, we unveil that active oxygen species mediate a strong electrochemical
Qu Jiang   +12 more
doaj   +1 more source

Bio-Inspired Functional Materials Templated From Nature Materials

open access: yesKONA Powder and Particle Journal, 2014
Inspired from nature materials with hierarchical structures, many functional materials are developed based on the templating synthesis method.
Di Zhang   +8 more
doaj   +1 more source

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