Influence of Co substitution for Fe on magnetic properties and crystal structure of soft magnetic Fe81.3Mo0.2Cu0.5Si4B14 alloy

2020 ◽  
Vol 512 ◽  
pp. 166681 ◽  
Author(s):  
L. Hawelek ◽  
M. Polak ◽  
P. Wlodarczyk ◽  
P. Zackiewicz ◽  
A. Radon ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Soft Magnetic ◽  
Co Substitution

scholarly journals Crystal Structure and Magnetic Properties of Zn Doped Barium M-Hexaferrite

2015 ◽  
Vol 1112 ◽  
pp. 19-22
Author(s):  
Umi Nuraini ◽  
Lita Amalia ◽  
Kurniawati C. Rosyidah ◽  
M. Zainuri
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Peak Position ◽  
Hexagonal Structure ◽  
Precipitation Method ◽  
Soft Magnetic ◽  
A Value ◽  
Coercivity Field ◽  
Co Precipitation ◽  
Slight Displacement

Synthesis of Zn doped Barium M-Hexaferrite (BaFe12-xZnxO19) has been performed by co-precipitation method. The purified iron sand from Tulungagung is used as a precursor of Fe3O4. Synthesis of Zn doped Barium M-Hexaferrite (BaFe12-xZnxO19) with variations of x = 0.3, 0.5, and 0.7 wt % has been calcined at temperatures of 1000°C for 5 hours. Ion Zn2+ (with 0 ≤ x ≤ 0.7 wt %) does not change the crystal structure of Barium M-Hexaferrite (BaM), but give a slight displacement of the peak position of the diffraction pattern. SEM figures showed that Zn doped Barium M-Hexaferrite (BaFe12-xZnxO19) have a hexagonal structure, similar to BaM structure. Doping of Zn has changed the magnetic properties of Barium M-Hexaferrit (BaM), from hard magnetic become soft magnetic. Barium M-Hexaferrit (BaM) has a value of Coercivity Field (Hc) and Remanence Magnetization (Mr) is 0.03734 T and 8.334 emu/g. At variation x = 0.3, the Remanence Magnetization (Mr) reaches the highest value. At this point, a value of Coercivity Field (Hc) and Remanence Magnetization (Mr) is 0.0506 T and 14.782 emu/gram respectively.

scholarly journals Synthesis and Characterization of Soft Magnetic Materials NixZn1-xFe2O4 (x = 0,2 – 0,8) Lombok Iron Sand with Co-precipitation Method

2021 ◽  
Vol 3 (1) ◽  
pp. 21-28
Author(s):  
Nining S Asri
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Physical Properties ◽  
Nickel Content ◽  
Average Particle Size ◽  
Precipitation Method ◽  
Average Particle ◽  
True Density ◽  
Soft Magnetic ◽  
Co Precipitation

The synthesis of soft magnetic NixZn1-xFe2O4 with variations in composition (x = 0,2 – 0,8) by the co-precipitation method has been carried out. The research objective was to determine the effect of x variation on the crystal structure, microstructure, magnetic properties, and density. The samples were characterized by their crystal structure using XRD, microstructure using FE-SEM, magnetic properties using VSM, and physical properties (True Density). The XRD analysis results obtained two phases, the major phase is nickel-zinc ferrite, and Fe2O3 shows as the minor phase. The crystal size increased and the lattice parameters decreased with the increase in nickel content. The results of FE-SEM analysis at x = 0.2 are spherical in shape with an average particle size found about 47.07 nm. The results of VSM analysis showed that the increase in nickel content, the higher the magnetization saturation value, and the super-paramagnetic properties of all samples obtained. The results of the analysis of physical properties show that true density decreases with an increase of nickel content in each sample.

Crystal Structure and Soft Magnetic Properties of FeZrN/AlN Multilayer Films

1991 ◽  
Vol 30 (Part 1, No. 8) ◽  
pp. 1687-1691 ◽  
Author(s):  
Noriaki Taneko ◽  
Yutaka Shimada ◽  
Kazuaki Fukamichi ◽  
Akira Yoshihara ◽  
Chyoji Miyakawa
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Multilayer Films ◽  
Soft Magnetic Properties ◽  
Soft Magnetic

Channelling Enhanced X-Ray Microanalysis of the Preferred Substitution of Ti, Cr and Co Atoms in Sendust (Fe-9.6wt.%Si-5.5wt.%Al) Alloys

1990 ◽  
Vol 48 (2) ◽  
pp. 470-471
Author(s):  
Kaoru Sato
Keyword(s):  
Crystal Structure ◽  
Magnetic Material ◽  
Magnetic Properties ◽  
Corrosion Resistance ◽  
Al Alloys ◽  
Milling Machine ◽  
Ion Milling ◽  
Soft Magnetic ◽  
X Ray ◽  
Ti Alloys

Sendust (Fe-9.6wt%Si-5.5wt%Al) is a well-known soft magnetic material. Attempts have been made recently to improve the corrosion resistance of this alloy by adding a fourth and/or a fifth element. Since the excellent magnetic properties of Sendust have been reported to be deeply related to its crystal structure, the DO3 structure, it is of vital importance to determine the crystallographic sites those additional elements occupy. In the present work I will report the results obtained for the site occupation of Ti, Cr and Co in Sendust alloys using the ALCHEMI method.Sendust containing 4.0%Cr, 3.0%Co+0.5%Nb and 2.0%Ti alloys were arc melted, then furnace-cooled from 1250°C. TEM specimens were prepared in a twin jet electropolisher using 5% perchrolic-acetic acid and the final thinning was done using an ion milling machine. The ALCHEMI experiment was performed in a Philips EM420T equipped with an EDAX 9900 system.All the specimens observed exhibited the diffraction spots which are associated with the DO3 structure (Fig. 1).

Crystal structure and magnetic properties of hard magnetic Sm2Fe17Nδ thin films with Co substitution

2009 ◽  
Vol 321 (5) ◽  
pp. 442-445 ◽  
Author(s):  
L. Peng ◽  
Q.H. Yang ◽  
H.W. Zhang ◽  
Y.Q. Song ◽  
J. Shen
Keyword(s):  
Crystal Structure ◽  
Thin Films ◽  
Magnetic Properties ◽  
Co Substitution

Microstructure in soft magnetic E3 (S1, Al) (Sendust) alloys

1988 ◽  
Vol 46 ◽  
pp. 770-771
Author(s):  
June D. Kim
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Ternary Phase Diagram ◽  
Vertical Tube ◽  
Vacuum Induction Melting ◽  
Induction Melting ◽  
Soft Magnetic ◽  
Quenching Temperature ◽  
Thin Foils ◽  
Vertical Tube Furnace

Iron-base alloys containing 8-11 wt.% Si, 4-8 wt.% Al, known as “Sendust” alloys, show excellent soft magnetic properties. These magnetic properties are strongly dependent on heat treatment conditions, especially on the quenching temperature following annealing. But little has been known about the microstructure and the Fe-Si-Al ternary phase diagram has not been established. In the present investigation, transmission electron microscopy (TEM) has been used to study the microstructure in a Sendust alloy as a function of temperature.An Fe-9.34 wt.% Si-5.34 wt.% Al (approximately Fe3Si0.6Al0.4) alloy was prepared by vacuum induction melting, and homogenized at 1,200°C for 5 hrs. Specimens were heat-treated in a vertical tube furnace in air, and the temperature was controlled to an accuracy of ±2°C. Thin foils for TEM observation were prepared by jet polishing using a mixture of perchloric acid 15% and acetic acid 85% at 10V and ∼13°C. Electron microscopy was performed using a Philips EM 301 microscope.

Soft Magnetic Properties of Fe-Ti-N Alloy Thin Films

1998 ◽  
Vol 22 (4_1) ◽  
pp. 186-189
Author(s):  
M. Matsumoto ◽  
A. Morisako ◽  
Y. Mutoh
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Soft Magnetic Properties ◽  
Soft Magnetic
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