SYNTHESIS AND MAGNETIC PROPERTIES OF PLATELET SHAPE SPINEL AND M-TYPE HEXAGONAL FERRITES PREPARED FROM β'' ALUMINA-LIKE FERRITES BY ION EXCHANGE

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-937-C8-938
Author(s):  
O. Kalogirou ◽  
A. C. Stergiou ◽  
D. Samaras ◽  
S. Nicolopoulos ◽  
A. Bekka ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Ion Exchange ◽  
Hexagonal Ferrites ◽  
Platelet Shape

Effect of Temperature on the Magnetic Permeability of Hexagonal Ferrites

2018 ◽  
Vol 781 ◽  
pp. 36-40
Author(s):  
Olga Dotsenko ◽  
Kirill Frolov ◽  
Dmitry Wagner ◽  
Veronika Dotsenko ◽  
Dmitry Aksentev
Keyword(s):  
Magnetic Properties ◽  
High Temperature ◽  
High Frequency ◽  
Solid State Reaction Method ◽  
Nonlinear Dependence ◽  
Effect Of Temperature ◽  
Hexagonal Ferrites ◽  
Temperature Synthesis ◽  
Reaction Method ◽  
High Temperature Synthesis

In this study, Co0,7Zn1,3W powders were synthesized and investigated at the microwave region. The solid-state reaction method and self-propagating high-temperature synthesis were used to production of the two kinds of hexaferrite powders. The high-frequency magnetic properties under temperature effect have been studied. It is show, that there is a nonlinear dependence on temperature within the 0 – +40 °C temperature range.

Magnetic Studies of Layered Cathode Materials for Lithium Ion Batteries

2006 ◽  
Vol 972 ◽  
Author(s):  
Natasha A. Chernova ◽  
Miaomiao Ma ◽  
Jie Xiao ◽  
M. Stanley Whittingham ◽  
Jordi Cabana Jiménez ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Ion Exchange ◽  
Cathode Materials ◽  
Ac Susceptibility ◽  
Exchange Process ◽  
Lithium Ion ◽  
Magnetic Ordering ◽  
Magnetic Interactions ◽  
Magnetic Studies ◽  
Ion Exchange Process

AbstractThe magnetic properties of layered LiNi0.5Mn0.5O2 and NaNi0.5Mn0.5O2 cathode materials are studied using AC susceptibility and DC magnetization techniques in order to elucidate magnetic interactions within transition metal (TM) layers and between them in samples with various TM distributions. In NaNi0.5Mn0.5O2 antiferromagnetic (AF) ordering transition is found at 60 K and a spin-flop transition at high magnetic field. In LiNi0.5Mn0.5O2 obtained by ion exchange from NaNi0.5Mn0.5O2 ferrimagnetic ordering is found at around 100 K. The saturation magnetization and the hysteresis loop size of ion-exchanged compounds vary from sample to sample, which implies that the Ni2+ ions migrate upon ion exchange process. Magnetic properties of high-temperature and ion-exchanged LiNi0.5Mn0.5O2 are compared; magnetic ordering models for all compounds are proposed based on experimental results and Goodenough-Kanamori rules.

Synthesis, structural, dielectric and magnetic properties of hexagonal ferrites

2020 ◽  
Vol 126 (9) ◽  
Author(s):  
Shabana Munir ◽  
Ishtiaq Ahmad ◽  
A. Laref ◽  
Hafiz Muhammad Tahir Farid
Keyword(s):  
Magnetic Properties ◽  
Hexagonal Ferrites

Structural, dielectric and magnetic properties of Al-Mn substituted nano-sized M-type strontium hexagonal ferrites

2019 ◽  
Vol 18 ◽  
pp. 533-541 ◽  
Author(s):  
J. Mohammed ◽  
H.Y. Hafeez ◽  
Tchouank Tekou Carol T ◽  
Jyoti Sharma ◽  
U.T. Isma'il ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Hexagonal Ferrites

scholarly journals Structure and magnetic properties of Co-Zn substituted hexagonal ferrites

2018 ◽  
Vol 197 ◽  
pp. 02007
Author(s):  
Erfan Handoko ◽  
Anggoro B S ◽  
Iwan Sugihartono ◽  
Mangasi AM ◽  
Dini Siti Nurwulan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Single Phase ◽  
Hexagonal Ferrites ◽  
X Ray Diffraction ◽  
Small Particles ◽  
Scanning Electron Microscopy Micrographs ◽  
Ceramic Method ◽  
X Ray ◽  
Structural And Magnetic Properties ◽  
Substitutional Effect

In In this study to understand the substitutional effect of Co-Zn on structural and magnetic properties of the BaFe12-2xCoxZnxO19 M-type hexagonal ferrites with concentration (x= 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) were synthesized by the ceramic method. The results of x-ray diffraction show polycrystalline with single phase. Scanning electron microscopy micrographs shows the hexagonal ferrites that are composed of small particles with large porosity, roughly of spherical shapes. The substitution of Fe3+ ion by Co2+ and Zn2+ has changed magnetic properties of hexagonal ferrites.

scholarly journals Magnetic Properties of Hexagonal Ferrites Crystal-Oriented by Magnetic Field and Hot-Pressed in Air Using Molten Salt Powders.

2003 ◽  
Vol 50 (2) ◽  
pp. 136-142
Author(s):  
Osamu Kimura ◽  
Yoshitaka Murakami ◽  
Masafumi Matsumoto ◽  
Mitsuo Sakakura ◽  
Kazuo Shoji ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Properties ◽  
Molten Salt ◽  
Hexagonal Ferrites
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