Temat: magnetostriction - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Simulation of the magnetostrictive actuator transients
Autorzy:: Idziak, P.
Kowalski, K.
Nowak, L.
Barlak, M.
Pochrybniak, C.
Tematy:: actuators
magnetostriction
electromagnetic field
transient analysis; Pokaż więcej
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Powiązania:: https://bibliotekanauki.pl/articles/377166.pdf Link otwiera się w nowym oknie
Opis:: The paper deals with a magnetostrictive fast-acting actuator applied as a driving device for plasma valve. The actuator is characterized by a relatively small displacement (les then 0.1 mm), but with a very short response time – below 0.1 ms. System is designed for so called “high intensity plasma pulses gun” which is applied in the area of plasma physics and material engineering [1]. A structure with an axisymmetrical actuator energised by discharged pulses of a capacitor has been proposed. The field-circuit mathematical model of the dynamic operation of the actuator has been applied. The model includes: the equation of transient electromagnetic field in a non-linear ferromagnetic material and equation of electric circuit. Using the Borland Delphi 9.0 environment, the computer software has been elaborated. Results of simulation are presented.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Influence of Terfenol-D powder volume fraction in epoxy matirx composites on their magnetomechanical properies
Autorzy:: Mech, R.
Kaleta, J.
Tematy:: magnetostriction
magnetic properties
smart materials
active materials; Pokaż więcej
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Powiązania:: https://bibliotekanauki.pl/articles/387154.pdf Link otwiera się w nowym oknie
Opis:: In this paper the investigations of magnetostriction as well as DC magnetic properties for composites doped with Terfenol-D particles are presented. All investigations were performed for the materials with 35%, 46% and 70% volume fraction of the Terfenol-D particles surrounded by epoxy matrix. Moreover, the bulk Terfenol-D alloy was tested. The obtained results show that the magnetization of the composite materials increases with increasing the volume fraction of Terfenol-D particles. Similar dependence as for magnetization was observed for the magnetostriction measurements. Although the magnetostriction of composite material is smaller than for solid Terfenol-D it is still tens of times bigger than in case of traditional magnetostrictive materials. Obtained results gives opportunity to use these materials for variety applications such as actuators and sensors.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Magnetostrictive Functional Materials of Tb0.27Dy0.73(Fe1-xAlx)2 Series as Prospective Constituents of Magnetoelectric Composites
Autorzy:: Winiarska, Barbara
Guzdek, Piotr
Kuciakowski, Juliusz
Tokarz, Waldemar
Sikora, Marcin
Pszczoła, Jarosław
Tematy:: intermetallics
magnetization
Terfenol-D
magnetostriction
magnetoelectric composite; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2203741.pdf Link otwiera się w nowym oknie
Opis:: Structural, magnetic, and magnetostrictive properties of two-sublattice Tb0.27Dy0.73(Fe1-xAlx)2 polycrystalline intermetallic ferrimagnets (x = 0-0.2 and 1.0) were studied using X-ray powder diffraction, magnetometry, and strain gauge magnetostriction measurements. Temperature dependences of magnetization starting from 80 K were presented, and Curie temperatures were estimated. Coercive force, residual, and saturation magnetizations were determined from the magnetic hysteresis loops at room temperature. Longitudinal, transversal, form and volume magnetostrictions were investigated against the x parameter and the intensity of the magnetic field. The piezomagnetic coefficients were determined and the maximum value at the field below 1 kOe, even enhanced than that in Terfenol-D, was observed for the material TTb0.27Dy0.73(Fe0.9Al0.1)2. It means that this compound is promising for use in magnetoelectric composites.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: MAELAS : MAgneto-ELAStic properties calculation via computational high-throughput approach
Autorzy:: Zhang, R.F.
Zhang, S.H.
Legut, D.
Nieves, P.
Kądzielawa, Andrzej
Arapan, S.
Opis:: In this work, we present the program MAELAS to calculate magnetocrystalline anisotropy energy, anisotropic magnetostrictive coefficients and magnetoelastic constants in an automated way by Density Functional Theory calculations. The program is based on the length optimization of the unit cell proposed by Wu and Freeman to calculate the magnetostrictive coefficients for cubic crystals. In addition to cubic crystals, this method is also implemented and generalized for other types of crystals that may be of interest in the study of magnetostrictive materials. As a benchmark, some tests are shown for well-known magnetic materials.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 5.

Tytuł:: Hyperfine fields and magnetoelastic surface effects in Fe72Cu1.5Nb4Si13.5B9 nanocrystalline alloy
Autorzy:: Szumiata, T.
Gawroński, M.
Górka, B.
Brzózka, K.
Blázquez-Gámez, J.
Kulik, T.
Żuberek, R.
Ślawska-Waniewska, A.
Tematy:: FINEMET
Mössbauer spectroscopy
nanocrystalline alloys
surface effects
surface magnetostriction; Pokaż więcej
Wydawca:: Instytut Chemii i Techniki Jądrowej
Powiązania:: https://bibliotekanauki.pl/articles/148767.pdf Link otwiera się w nowym oknie
Opis:: In this work hyperfine fields of two-phase nanocrystalline Fe72Cu1.5Nb4Si13.5B9 alloys were studied in order to verify the existence of surface effects. To obtain a series of nanocrystalline samples with small grains of different sizes, a special non- -isothermal annealing procedure of an initially amorphous ribbon was applied. In the case of samples with a significant amount of crystallites, a high field (about 27.5 T) component of continuous part of the hyperfine field distribution was found that could be attributed to boundary regions between the grains and rest of the sample. The existence of the surface effects was confirmed in the magnetostrictive experiment.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Influence of the core saturation on the dynamic performance of the magnetostrictive actuator
Autorzy:: Kowalski, K.
Nowak, L.
Knypiński, Ł.
Idziak, P.
Tematy:: magnetostriction
fast-acting actuator
finite element analysis
transient analysis; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/141353.pdf Link otwiera się w nowym oknie
Opis:: The paper considers the influence of core saturation on the dynamics of magnetostrictive fast-acting actuator. The field-circuit mathematical model of the dynamic operation of the capacitor-actuator system is applied. Two kinds of magnetostrictive core nonlinearity are taken into account. It has been proved that the saturation of the B-H curve practically does not affect the current, and capacitor voltage waveforms, but significantly affects a core elongation waveform. The computed results are compared with experimental ones.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Generating of electricity from magnetoelectric composite with use of changes in direction of magnetic field vector
Autorzy:: Mech, R.
Tematy:: SMART materials
Energy Harvesting
magnetostriction
active materials
Terfenol-D; Pokaż więcej
Wydawca:: Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Powiązania:: https://bibliotekanauki.pl/articles/347476.pdf Link otwiera się w nowym oknie
Opis:: Paper shows study on the magnetoelectric composite material placed in an external magnetic field with changing magnetic field vecotr. An experimental setup for investigation of magnetoelectric properties of magnetostrictive-piezoelectric material was prepared. The hybrid structure is made of magnetostrictive composite (based on Terfenol-D) and piezoelectric material. Experimental results shown the response of prepared hybrid material to the rate of changes of direction of magnetic field vector. Investigation were mainly focused on possibility of generating of electric power from prepared material. It was found that the prepared hybrid material exhibits magnetoelectric effect in the case of work when direction of magnetic field vector was changing. This effect might be use in Energy Harvesting applications.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: MAELASviewer : an online tool to visualize magnetostriction
Autorzy:: Legut, Dominik
Kądzielawa, Andrzej
Nieves, Pablo
Arapan, Sergiu
Opis:: The design of new materials for technological applications is increasingly being assisted by online computational tools that facilitate the study of their properties. In this work, based on modern web application frameworks, the online app MAELASviewer has been developed to visualize and analyze magnetostriction via a user-friendly interactive graphical interface. The features and technical details of this new tool are described in detail. Among other applications, it could potentially be used for the design of magnetostrictive materials for sensors and actuators.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 9.

Tytuł:: Automated calculations of exchange magnetostriction
Autorzy:: Zhang, Ruifeng
Legut, Dominik
Kądzielawa, Andrzej
Zhang, Shihao
Nieves, Pablo
Arapan, Sergiu
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 10.

Tytuł:: Coupled wave-equation and eddy-current model for modelling and measuring propagating stress-waves
Autorzy:: Peussa, T.
Belahcen, A.
Tematy:: coupled model
eddy currents
finite element method
magnetostriction
stress wave; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/140923.pdf Link otwiera się w nowym oknie
Opis:: The coupling of the propagating stress wave with the eddy current model is presented. The applied stress produces magnetization in the sample that can be measured outside the sample by measuring the resulting magnetic flux density. The stress and flux density measurements are made on a mechanically excited steel bar. The problem is modelled with the finite element method for both the propagating wave and the eddy current. Three aspects are considered: eddy current model using magnetization from the measurements, coupled wave and eddy current models, and coupled different dimensions in the wave model. The measured stress can be reproduced from the measured flux density by modelling. The coupled models work both for stress and flux couplings as well as for the different dimensionality couplings.
Dostawca treści:: Biblioteka Nauki

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