Results 61 to 70 of about 4,355,249 (180)

Fabricating fast triggered electro-active shape memory graphite/silver nanowires/epoxy resin composite from polymer template

open access: yesScientific Reports, 2017
In recent years shape-memory polymers have been under intense investigation due to their unique mechanical, thermal, and electrical properties that could potentially make them extremely valuable in numerous engineering applications.
Jie Zhou   +8 more
doaj   +1 more source

Radiative Cooling Materials for Extreme Environmental Applications

open access: yesNano-Micro Letters
Highlights Heat exchange mechanisms for enhancing cooling performance and environmental tolerance are elucidated. Challenges in extreme environments, along with the corresponding anti-environmental radiative cooling materials and micro-nano structures ...
Jianing Xu   +9 more
doaj   +1 more source

Microstructure and mechanical properties of in-situ TiB2/A356 composites and a prediction model of yield strength [PDF]

open access: yesChina Foundry, 2015
The in-situ TiB2/A356 composites were successfully synthesized through the mixed salt reaction method. The advantage of this technique was that the particle sizes and morphology can be controlled by the melt reaction.
Yi-jie Zhang   +2 more
doaj  

Effect of intrinsic heat treatment on the microstructure and mechanical properties of Al-Cu alloy fabricated by wire arc directed energy deposition

open access: yesScientific Reports
Wire arc directed energy deposition (WADED) represents an appealing approach for producing complex, large-scale, and three-dimensional metallic components from metallic wire, guided by computer-aided design models.
Bin Yang   +6 more
doaj   +1 more source

Toughening and hardening in double-walled carbon nanotube/nanostructured magnesia composites [PDF]

open access: yes, 2010
Dense double-walled carbon nanotube (DWCNT)/nanostructured MgO composites were prepared using an in situ route obviating any milling step for the synthesis of powders and consolidation by spark-plasma-sintering.
Estournès, Claude   +9 more
core   +1 more source

Interface-governed strength-ductility synergy in nano-metallic-glass/aluminum composites

open access: yesMaterials Research Letters
Aluminum (Al) matrix composites typically suffer from a strength-ductility trade-off due to strain localization around hard-and-brittle reinforcements. Here, deformable FeZrB metallic glass nanoparticles were incorporated into pure Al matrix.
Yuye Xiong   +4 more
doaj   +1 more source

Permanent porous hydrogen-bonded frameworks with two types of Brønsted acid sites for heterogeneous asymmetric catalysis

open access: yesNature Communications, 2019
The search for porous materials with strong Brønsted acid sites for challenging chemical reactions has been of significant interest, but remains challenging.
Wei Gong   +5 more
doaj   +1 more source

Continuous Casting Preparation Process of Helical Fiber-Reinforced Metal Matrix Composites

open access: yes
To improve the strength of the metal while maintaining good plasticity, helical fibers are added to the metal matrix. How to form helical fiber and control its parameters in the preparation process are urgent problems to be solved in the study of helical
Hui Yang, Ming Chang, Chunjing Wu
core   +1 more source

Sixteen isostructural phosphonate metal-organic frameworks with controlled Lewis acidity and chemical stability for asymmetric catalysis

open access: yesNature Communications, 2017
Asymmetric synthesis predominantly falls within the realm of homogeneous catalysis. Here, the authors synthesized 16 chiral metal–organic frameworks differing in the nature of the transition metal and demonstrate their excellent stability, catalytic ...
Xu Chen   +5 more
doaj   +1 more source

Quantitative prediction of optical static refractive index in complex oxides

open access: yesnpj Computational Materials
The optical static refractive index, a critical intrinsic property of materials, plays a vital role in advanced optoelectronic applications. Accurate prediction of this index is essential for the efficient design and optimization of materials with ...
Lan Yang   +7 more
doaj   +1 more source

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