scholarly journals Structure and magnetic properties of coprecipitated nickel-zinc ferrite-doped rare earth elements of Sc, Dy, and Gd

2021 ◽  
Author(s):  
Shiwen Li ◽  
Jiatong Pan ◽  
Feng Gao ◽  
Deqian Zeng ◽  
Feng Qin ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Zinc Ferrite ◽  
Nickel Zinc

Synthesis, structure, and magnetic properties of rare-earth-doped Ni0.75Zn0.25Fe2O4 nickel zinc ferrite

2016 ◽  
Vol 52 (9) ◽  
pp. 932-938 ◽  
Author(s):  
G. V. Bazuev ◽  
O. I. Gyrdasova ◽  
S. I. Novikov ◽  
A. Yu. Kuznetsov
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Zinc Ferrite ◽  
Nickel Zinc ◽  
Rare Earth Doped

scholarly journals Structure and magnetic properties of coprecipitated nickel-zinc ferrite doped rare earth elements of Sc, Dy, and Gd

2021 ◽  
Author(s):  
Li Shiwen ◽  
Pan Jiatong ◽  
Gao Feng ◽  
Zeng Deqian ◽  
Feng Qin ◽  
...  
Keyword(s):  
Grain Size ◽  
Magnetic Properties ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Physical Property Measurement System ◽  
Rare Earth Ions ◽  
Temperature Sensitive ◽  
Basic Study ◽  
Nickel Zinc ◽  
Average Grain Size

Abstract This research is the basic study of temperature-sensitive ferrite characteristics prepared by coprecipitation with doping different typical sizes of rare earth elements. Ni 0.5 Zn 0.5 Re x Fe 2-x O 4 (NZRF) (X = 0.02, 0.05, 0.07 and 0.09) nanoparticles (NPs) doped by Sc, Dy and Gd prepared by chemical coprecipitation method. The structure and properties of Ni 0.5 Zn 0.5 Re x Fe 2-x O 4 were analyzed by various characterization methods. XRD results show that the grain size of Ni 0.5 Zn 0.5 Re x Fe 2-x O 4 is from 10.6 to 12.4 nm, which is close to the average grain size of 13.9 nm observed on TEM images. It is also found that the ferrite particles are spherical and slightly agglomerated in TEM images. FTIR measurements between 400 and 4000 cm -1 have confirmed the intrinsic cation vibration of the spinel structure. The concentrations of nickel, zinc, iron, and rare earth elements have been determined by ICP-AES, and all ions have participated in the reaction. The magnetic properties of Sc, Dy, and Gd 3+ doped NZRF NPs at room temperature are recorded by a physical property measurement system (PPMS-9). It is found that the magnetization can be changed by adding rare-earth ions. When X = 0.07, Gd 3+ doped Ni 0.5 Zn 0.5 Fe 2 O 4 (NZF) exhibits the highest saturation magnetization. The magnetic properties of NZGd 0.07 vary the most with temperature. The thermomagnetic coefficient of NZGd 0.07 nanoparticles stabilized to 0.18 emu/gK at 0-100℃. Hence, NZGd 0.07 with low Curie temperature and the high thermomagnetic coefficient can be used to prepare temperature-sensitive ferrofluid. All the samples exhibit very small coercivity and almost zero remanences, which indicates the superparamagnetism of the synthesized nanoparticles.

Substitution Effects on Rare-Earth Ions-Doped Nickel-Zinc Ferrite Nanoparticles

2016 ◽  
Vol 30 (5) ◽  
pp. 1207-1212 ◽  
Author(s):  
R. Kesavamoorthi ◽  
C. Ramachandra Raja
Keyword(s):  
Rare Earth ◽  
Zinc Ferrite ◽  
Ferrite Nanoparticles ◽  
Rare Earth Ions ◽  
Substitution Effects ◽  
Nickel Zinc

Effect of antisite formation on magnetic properties of nickel zinc ferrite particles

2013 ◽  
Vol 114 (18) ◽  
pp. 183903 ◽  
Author(s):  
B. Ghosh ◽  
M. Sardar ◽  
S. Banerjee
Keyword(s):  
Magnetic Properties ◽  
Zinc Ferrite ◽  
Nickel Zinc

scholarly journals Synthesis of nanosized nickel zinc ferrite using electric arc furnace dust and ferrous pickle liquor

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ayman Galal ◽  
Olfat Sadek ◽  
Moataz Soliman ◽  
Shaker Ebrahim ◽  
M. Anas
Keyword(s):  
Magnetic Properties ◽  
Zinc Ferrite ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
X Ray ◽  
Electric Arc Furnace Dust ◽  
Nickel Zinc ◽  
Ni Content ◽  
Pickle Liquor

AbstractElectric arc furnace dust (EAFD) and waste pickle liquor (WPL); two major side products of the steel industry with negative environmental impact were used for the synthesis of nickel zinc ferrite (NZF); the important magnetic ceramic material of versatile industrial applications. The structural and magnetic properties of the prepared material were examined which showed good magnetic properties (high saturation magnetization and low coercivity) compared with those synthesized from pure reagents. In the applied process, nano sized nickel zinc ferrite (NZF) with a composition of Nix(Zn + impurities)1−xFe2O4 (where x = 0, 0.25, 0.5, 0.75 and impurities of manganese, magnesium, and calcium were prepared using zinc-containing electric arc furnace dust (EAFD) and waste pickle liquor (WPL). The chemical compositions of the prepared samples were determined using X-ray fluorescence (XRF) analysis. The optimum acetic acid concentration for EAFD treatment was found 2% v/v that decreased Ca content of EAFD by 70.6% without loss of Fe and Zn. The structural and morphological characterization was done by X-ray diffraction (XRD), Fourier transform infrared (FTIR) and Field Emission Scanning Electron Microscope (FESEM) to confirm the formation of Ni–Zn ferrite nanoparticles and estimate the particle sizes. The maximum saturation magnetization (Ms) of 73.89 emu/g was achieved at 0.5 Ni content and the minimum coercivity of 2.55 Oe was obtained at 0.25 Ni content.

Magnetic properties and DC electrical resistivity studies on cadmium substituted nickel–zinc ferrite system

2011 ◽  
Vol 323 (16) ◽  
pp. 2115-2121 ◽  
Author(s):  
M. Siva Ram Prasad ◽  
B.B.V.S.V. Prasad ◽  
B. Rajesh ◽  
K.H. Rao ◽  
K.V. Ramesh
Keyword(s):  
Magnetic Properties ◽  
Electrical Resistivity ◽  
Zinc Ferrite ◽  
Dc Electrical Resistivity ◽  
Nickel Zinc ◽  
Ferrite System

Anisotropic growth and magnetic properties of nickel–zinc ferrite thin film by spin spray deposition

2021 ◽  
Vol 47 (1) ◽  
pp. 1318-1324
Author(s):  
Hai Liu ◽  
Zhong Yu ◽  
Bin Fu ◽  
Maojun Ran ◽  
Chuanjian Wu ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetic Properties ◽  
Zinc Ferrite ◽  
Spray Deposition ◽  
Anisotropic Growth ◽  
Nickel Zinc
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