The Experts below are selected from a list of 20628 Experts worldwide ranked by ideXlab platform
Yuanhua Lin - One of the best experts on this subject based on the ideXlab platform.
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calculations of giant magnetoelectric effect in multiferroic composites of rare earth Iron Alloys and pzt by finite element method
International Journal of Solids and Structures, 2004Co-Authors: Gang Liu, Ce-wen Nan, Ning Cai, Yuanhua LinAbstract:Abstract Magnetoelectric effect of laminated composites of rare-earth-Iron Alloys (Terfenol-D) and lead–zirconate–titanate (PZT) is calculated by using finite element method. The dependences of the magnetoelectric response on the geometric configuration, the orientations of magnetostriction and polarization, and the applied magnetic field are presented for various sandwiched composites in details. The giant magnetoelectric effect predicted for the Terfenol-D/PZT composites is in agreement with predictions by a recent analytical method and recent experimental observations available.
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dependence of giant magnetoelectric effect on interfacial bonding for multiferroic laminated composites of rare earth Iron Alloys and lead zirconate titanate
Journal of Applied Physics, 2004Co-Authors: Gang Liu, Ce-wen Nan, Ning Cai, Yuanhua LinAbstract:The giant magnetoelectric effect of laminated composites of rare-earth-Iron Alloys (Terfenol-D) and lead–zirconate–titanate (PZT) is calculated by using the finite element method. Our simulations show that the magnetoelectric response of the laminated Terfenol-D/PZT composites is strongly dependent on interfacial bonding between Terfenol-D and PZT layers. The giant magnetoelectric effect and its dependence on the interfacial bonding predicted by the finite element method for the composites are in good agreement with predictions by a recent analytical method and recent experimental observations available.
Ce-wen Nan - One of the best experts on this subject based on the ideXlab platform.
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calculations of giant magnetoelectric effect in multiferroic composites of rare earth Iron Alloys and pzt by finite element method
International Journal of Solids and Structures, 2004Co-Authors: Gang Liu, Ce-wen Nan, Ning Cai, Yuanhua LinAbstract:Abstract Magnetoelectric effect of laminated composites of rare-earth-Iron Alloys (Terfenol-D) and lead–zirconate–titanate (PZT) is calculated by using finite element method. The dependences of the magnetoelectric response on the geometric configuration, the orientations of magnetostriction and polarization, and the applied magnetic field are presented for various sandwiched composites in details. The giant magnetoelectric effect predicted for the Terfenol-D/PZT composites is in agreement with predictions by a recent analytical method and recent experimental observations available.
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dependence of giant magnetoelectric effect on interfacial bonding for multiferroic laminated composites of rare earth Iron Alloys and lead zirconate titanate
Journal of Applied Physics, 2004Co-Authors: Gang Liu, Ce-wen Nan, Ning Cai, Yuanhua LinAbstract:The giant magnetoelectric effect of laminated composites of rare-earth-Iron Alloys (Terfenol-D) and lead–zirconate–titanate (PZT) is calculated by using the finite element method. Our simulations show that the magnetoelectric response of the laminated Terfenol-D/PZT composites is strongly dependent on interfacial bonding between Terfenol-D and PZT layers. The giant magnetoelectric effect and its dependence on the interfacial bonding predicted by the finite element method for the composites are in good agreement with predictions by a recent analytical method and recent experimental observations available.
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possible giant magnetoelectric effect of ferromagnetic rare earth Iron Alloys filled ferroelectric polymers
Applied Physics Letters, 2001Co-Authors: Ce-wen Nan, Xiqiao FengAbstract:Coupled magnetic–mechanical–electric effects in a composite with ferromagnetic rare-earth–Iron Alloys (e.g., Tb1−xDyxFe2) filled in ferroelectric polymers [e.g, poly(vinylidene-fluoride–trifluoroethylene) copolymer] are studied by using the Green’s function technique. Numerical results suggest a possible giant linear magnetoelectric effect in the ferroic polymer–matrix composite, which is markedly larger than that in the best-known magnetoelectric materials. In addition, the mechanically flexible composite exhibits large magnetostriction. The present results may stimulate further interest in the area of magnetoelectric materials for technological applications.
Gang Liu - One of the best experts on this subject based on the ideXlab platform.
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calculations of giant magnetoelectric effect in multiferroic composites of rare earth Iron Alloys and pzt by finite element method
International Journal of Solids and Structures, 2004Co-Authors: Gang Liu, Ce-wen Nan, Ning Cai, Yuanhua LinAbstract:Abstract Magnetoelectric effect of laminated composites of rare-earth-Iron Alloys (Terfenol-D) and lead–zirconate–titanate (PZT) is calculated by using finite element method. The dependences of the magnetoelectric response on the geometric configuration, the orientations of magnetostriction and polarization, and the applied magnetic field are presented for various sandwiched composites in details. The giant magnetoelectric effect predicted for the Terfenol-D/PZT composites is in agreement with predictions by a recent analytical method and recent experimental observations available.
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dependence of giant magnetoelectric effect on interfacial bonding for multiferroic laminated composites of rare earth Iron Alloys and lead zirconate titanate
Journal of Applied Physics, 2004Co-Authors: Gang Liu, Ce-wen Nan, Ning Cai, Yuanhua LinAbstract:The giant magnetoelectric effect of laminated composites of rare-earth-Iron Alloys (Terfenol-D) and lead–zirconate–titanate (PZT) is calculated by using the finite element method. Our simulations show that the magnetoelectric response of the laminated Terfenol-D/PZT composites is strongly dependent on interfacial bonding between Terfenol-D and PZT layers. The giant magnetoelectric effect and its dependence on the interfacial bonding predicted by the finite element method for the composites are in good agreement with predictions by a recent analytical method and recent experimental observations available.
Ning Cai - One of the best experts on this subject based on the ideXlab platform.
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calculations of giant magnetoelectric effect in multiferroic composites of rare earth Iron Alloys and pzt by finite element method
International Journal of Solids and Structures, 2004Co-Authors: Gang Liu, Ce-wen Nan, Ning Cai, Yuanhua LinAbstract:Abstract Magnetoelectric effect of laminated composites of rare-earth-Iron Alloys (Terfenol-D) and lead–zirconate–titanate (PZT) is calculated by using finite element method. The dependences of the magnetoelectric response on the geometric configuration, the orientations of magnetostriction and polarization, and the applied magnetic field are presented for various sandwiched composites in details. The giant magnetoelectric effect predicted for the Terfenol-D/PZT composites is in agreement with predictions by a recent analytical method and recent experimental observations available.
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dependence of giant magnetoelectric effect on interfacial bonding for multiferroic laminated composites of rare earth Iron Alloys and lead zirconate titanate
Journal of Applied Physics, 2004Co-Authors: Gang Liu, Ce-wen Nan, Ning Cai, Yuanhua LinAbstract:The giant magnetoelectric effect of laminated composites of rare-earth-Iron Alloys (Terfenol-D) and lead–zirconate–titanate (PZT) is calculated by using the finite element method. Our simulations show that the magnetoelectric response of the laminated Terfenol-D/PZT composites is strongly dependent on interfacial bonding between Terfenol-D and PZT layers. The giant magnetoelectric effect and its dependence on the interfacial bonding predicted by the finite element method for the composites are in good agreement with predictions by a recent analytical method and recent experimental observations available.
Levente Vitos - One of the best experts on this subject based on the ideXlab platform.
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invariant plastic deformation mechanism in paramagnetic nickel Iron Alloys
Proceedings of the National Academy of Sciences of the United States of America, 2021Co-Authors: Levente Vitos, Zhihua Dong, Stephan Schonecker, Bin JiangAbstract:The Invar anomaly is one of the most fascinating phenomena observed in magnetically ordered materials. Invariant thermal expansion and elastic properties have attracted substantial scientific attention and led to important technological solutions. By studying planar faults in the high-temperature magnetically disordered state of [Formula: see text], here we disclose a completely different anomaly. An invariant plastic deformation mechanism is characterized by an unchanged stacking fault energy with temperature within wide concentration and temperature ranges. This anomaly emerges from the competing stability between the face-centered cubic and hexagonal close-packed structures and occurs in other paramagnetic or nonmagnetic systems whenever the structural balance exists. The present findings create a platform for tailoring high-temperature properties of technologically relevant materials toward plastic stability at elevated temperatures.
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First-principles study of solid-solution hardening in steel Alloys
Computational Materials Science, 2012Co-Authors: Hualei Zhang, Borje Johansson, Rajeev Ahuja, Levente VitosAbstract:Materials with excellent mechanical properties, such as light mass combined with remarkable hardness and toughness, are technologically important not least for automotive and other transport applications. Solid solution strengthening, due to dislocation pinning by impurities, is an effective route to enhance the intrinsic hardness of Alloys. In the present work, we use advanced quantum theory to reveal the mechanical characteristics of Iron Alloys within and beyond their thermodynamic stability fields. Among the considered alloying elements, magnesium strongly reduces the density of the host Alloys and significantly enhances the hardness. Our findings suggest that stainless steel grades containing a few percent of magnesium are promising engineering materials for high-strength and light-weight designs.
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body centered cubic Iron nickel alloy in earth s core
Science, 2007Co-Authors: Leonid Dubrovinsky, Natalia Dubrovinskaia, O Narygina, I Kantor, A Kuznetzov, V B Prakapenka, Levente Vitos, Borje Johansson, A S Mikhaylushkin, S I SimakAbstract:Cosmochemical, geochemical, and geophysical studies provide evidence that Earth's core contains Iron with substantial (5 to 15%) amounts of nickel. The Iron-nickel alloy Fe0.9Ni0.1 has been studied in situ by means of angle-dispersive x-ray diffraction in internally heated diamond anvil cells (DACs), and its resistance has been measured as a function of pressure and temperature. At pressures above 225 gigapascals and temperatures over 3400 kelvin, Fe0.9Ni0.1 adopts a body-centered cubic structure. Our experimental and theoretical results not only support the interpretation of shockwave data on pure Iron as showing a solid-solid phase transition above about 200 gigapascals, but also suggest that Iron Alloys with geochemically reasonable compositions (that is, with substantial nickel, sulfur, or silicon content) adopt the bcc structure in Earth's inner core.
