نتایج جستجو برای: soft magnetic materials
تعداد نتایج: 867362 فیلتر نتایج به سال:
روش رسوب دهی الکتریکی به دلیل خلوص بالای محصول، عدم وجود تخلخل های عمده و تولید محصول در حجم انبوه و مدت زمان کم در میان روش های مختلف تولید مواد نانوکریستالی از اهمیت خاصی برخوردار است. از جمله آلیاژهای قابل تولید به روش رسوب دهی الکتریکی، آلیاژهای آهن- نیکل می باشند که کاربرد وسیعی در صنعت ساخت حافظه های مغناطیسی، وسایل ضبط و نگهداری اطلاعات، nems/mems و کاربردهای ضریب انبساط حرارتی پایین مان...
The Mössbauer spectra of nanoferrite materials such as Ni0.25Mn0.75Fe2O4, Co0.5Mn0.5Fe2O4 and Ni0.4Co0.6Fe2O4 have been reported and the above materials were prepared by sol-gel combustion method using metal nitrates as source material and Polyvinyl alcohol(PVA) as...
Abstract The paper analyzes the influence of hard and soft admixture on functional properties multiferroic ceramic composites. Two composite materials via solid-state reaction route were obtained. PZT-type (with or admixture) selected as ferroelectric component (90%), nickel–zinc ferrite magnetic (10%). doping type (soft component) composites’ dielectric, ferroelectric, electromechanical, magne...
The large deformation mechanical response of complex fluids and soft materials provides fundamental insight into their underlying microstructure and dynamics. Additionally, associated yielding and flow processes are often central to industrial processing and end-use. By probing nonlinear rheological properties at the microscopic scale, microstructural dynamics and flow mechanisms can be more di...
Plots of the dc demagnetisation remanence us. the isothermal remanence have been used t o investigate manybody effects in soft magnetic materials and recording media. Nonlinearities in the plots are ascribed to the demagnetising effects of the manybody interactions in each case.
Fabrication of bulk nanocomposite materials, which contain a magnetically hard phase and a magnetically soft phase with desired nanoscale morphology and composition distribution has proven to be challenging. Here we demonstrate that SmCo/Fe(Co) hard/soft nanocomposite materials can be produced by distributing the soft magnetic a-Fe(Co) phase particles homogenously in a hard magnetic SmCo phase ...
Abstract This paper presents a novel digital control strategy successfully implemented for a soft magnetic material characterization bench (Epstein frame type). The main objective is to control the magnetic induction waveform whatever the applied excitation and the material under study. Given the nonlinear nature of the magnetization curves of magnetic materials, an original model-free based co...
Magnetoelectric coupling-the ability of a material to magnetize upon application of an electric field and, conversely, to polarize under the action of a magnetic field-is rare and restricted to a rather small set of exotic hard crystalline materials. Intense research activity has recently ensued on materials development, fundamental scientific issues, and applications related to this phenomenon...
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