Last. Pedro Silva(IVIC: Venezuelan Institute for Scientific Research)H-Index: 2
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Ferromagnetic resonance was used to study the temperature dependence of mixed manganese-cobalt ferrite nanoparticles with a size range between 5 and 42 nm synthesized by the hydrothermal method. Structural characterization was carried out using X-ray diffraction, scanning, and transmission electron microscopy. M(H) curves as a function of the Mn2+ content at 2.5 and 300 K, and FMR in the temperature range of 80 < T < 700 K were used for the magnetic characterization. Temperature dependence of th...
Last. Ji Wu(GS: Georgia Southern University)H-Index: 6
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The cycling performance of high-capacity lithium ion battery anodes can be significantly improved by adopting 3D nanoporous structures that can efficiently accommodate large volume changes during lithiation and de-lithiation. In this study, various molybdenum oxide nanoporous asymmetric membranes were fabricated on a large scale via a spontaneous non-solvent-induced phase separation process. We explored the effects of polymer precursor, membrane geometry, and annealing condition on the porosity,...
#1A. Diver(QMUL: Queen Mary University of London)H-Index: 1
#2Oliver A. Dicks(QMUL: Queen Mary University of London)H-Index: 5
Last. Kostya Trachenko(QMUL: Queen Mary University of London)H-Index: 39
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We report the effects of radiation damage on helium diffusion in zircon using data from molecular dynamics simulations. We observe an increase in activation energy for helium diffusion as a result of radiation damage and increasing structural disorder. The activation energy in a heavily damaged region is smaller than in a completely amorphous system which is correlated with remaining order in the cation sublattices of the damaged structure not present in the fully amorphized system. The increase...
#1Xiaotong Feng(HEBUT: Hebei University of Technology)
#2Zhijie Lin(HEBUT: Hebei University of Technology)
Last. Weiwei Pang(HEBUT: Hebei University of Technology)H-Index: 1
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The deformation mechanisms and mechanical properties of Cu/Fe multilayer during compression process are investigated via atomistic simulations and rationalized analysis. It is found that yield stress and strain of Kurdjumov–Sachs model are lower than that of Nishiyama–Wassermann model, and lattice dislocation nucleates from periodic arrangement structures on the interface. We present that preferred slip systems are dominated not only by Schmidt factors but also by intersection line orientations ...
Last. Christian Wischke(MLU: Martin Luther University of Halle-Wittenberg)
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Shape-memory polymer micronetworks (MN) are micrometer-sized objects that can switch their outer shape upon external command. This study aims to scale MN sizes to the low micrometer range at very narrow size distributions. In a two-step microfluidic strategy, the specific design of coaxial class capillary devices allowed stabilizing the thread of the dispersed phase to efficiently produce precursor particles in the tip-streaming regime at rates up to ~ 170 kHz and final sizes down to 4 µm. In a ...
A series of LEDs that have a green CdSe@ZnS quantum dot (QD) emitting layer (EML) in response to treatment with formic acid (FA), 1,3-benzenedithiol (BDT), and 1,2-ethanedithiol (EDT) were fabricated and investigated. The initial long-chained ligands of oleic acid-based CdSe@ZnS QD layers were partially replaced by short-chained and more conductive ligands of FA, BDT, and EDT that can offer to improve the performance of QD-LEDs (QLEDs). Comparison of the operation characteristics of QLEDs withou...
Last. Xiaoyu Zheng(UCLA: University of California, Los Angeles)H-Index: 21
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Plate-based lattices are predicted to reach theoretical Hashin–Shtrikman and Suquet upper bounds on stiffness and strength. However, simultaneously attaining high energy absorption in these plate-lattices still remains elusive, which is critical for many structural applications such as shock wave absorber and protective devices. In this work, we present bi-material isotropic cubic + octet sandwich plate-lattices composed of carbon fiber-reinforced polymer (stiff) skins and elastomeric (soft) cor...
#1Morgan R. Jones(SNL: Sandia National Laboratories)H-Index: 4
#2Frank W. DelRio(SNL: Sandia National Laboratories)H-Index: 23
Last. Nicolas Argibay(SNL: Sandia National Laboratories)H-Index: 18
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Ni-based superalloys have been studied extensively due to their impressive mechanical properties, including strength and creep resistance at high temperatures. Growing interest surrounding additive manufacturing (AM) methods has led to recent investigations of alloys that are traditionally difficult to process, including Ni-based superalloys. Recent work has shown that AM methods enable high-throughput materials discovery and optimization of difficult- or impractical-to-process alloys, including...