نتایج جستجو برای: hexagonal ferrites

تعداد نتایج: 14976  

Journal: :Journal of Ovonic Research 2023

The Nickel substituted Cu-Co-Zn-Ce nano ferrites, Zn0.15Co0.45Cu0.40-xNix Fe1.85Ce0.15O4 with x=0, 0.1, 0.20, 0.30, 0.40, were synthesized using the coprecipitation technique. sample sintered at 900 ℃ for 5h. structural, electrical, dielectric and magnetic properties of all prepared samples characterized by XRD, SMU2401, UV-Vis FTIR. powder X-ray diffraction patterns confirmed formation single-...

2005
Davor Balzar Goran Stefanic Ken Gall Martin L. Dunn Yiping Liu

We report on the residual stresses in amorphous shape memory polymers reinforced with SiC particles. After 50% compression of the composite material at 25 °C, the SiC particles exhibit a compressive stress, which is almost completely released during heated recovery at 120 °C. The residual stresses in SiC hexagonal (6H) phase were estimated through the average change of the unit-cell volume. Lat...

2007
Joshua E. S. Socolar

The interplay between local constraints and global structure of mathematical and physical systems is both subtle and important. The macroscopic physical properties of a system depend heavily on its global symmetries, but these are often difficult to predict given only information about local interactions between the components. A rich history of work on tilings of the Euclidean plane and higher...

2004
Anderson Dias

Nanomagnetic structures of hydrothermal NiZn ferrites sintered at various temperatures was studied in this work through Magnetic Force Microscopy (MFM) using different magnetically characterized tips. The magnetic patterns varied according to the tip employed and were correlated to the magnetic induced field generated by these different coated tips. NiZn ferrites were produced at 200°C by hydro...

Journal: :Magnetochemistry 2022

We review the basic phenomenology of magnetic losses from DC to 1 GHz in commercial and laboratory-prepared soft ferrites considering recent concepts regarding their physical interpretation. This is based, on one hand, identification contributions magnetization process provided by spin rotations domain walls and, other concept loss separation. It additionally contemplates a distinction between ...

Journal: :Journal of Advanced Ceramics 2023

To be able to regulate anionic oxygen position in ferrites, an original compositing method is developed by introducing a porous p-type phase the n-type matrix of ferrite spinel semiconductors. A result this synergetic effect enhanced mass and charge transport, that impacted morphology within MgFe2O4 structure. Our hypothesis fine tuning ferrites allows us their physicochem...

Journal: :Materials research foundations 2023

Ferrites are the important material for memory devices. In this we discuss ferrites in detail with their classification, preparation method to applications. We also present a brief introduction about hard and application materials that offer distinct electrical magnetic features helpful various It is noted spin transmission torques may change magnetization through current travelling tunnel inte...

2012
Sumandeep kaur

In this paper hexagonal patch shape with hexagonal slot, ultra wideband antenna is proposed. The total dimensions of antenna are 55×43.5mm. Sides of hexagonal patch are taken 13mm each and hexagonal slot sides are taken as 3mm each. The antenna resonates at two frequencies in ultra wideband range (UWB). There is enhancement in BW in upper range ultra wideband frequency from 6.2 GHz to 8.2GHz du...

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