Calculation of magnetic parameters of iron-contained nanoparticles

2021 ◽  
Vol 03 (01) ◽  
pp. 47-58
Author(s):  
Faiq Heydər oğlu Paşayev ◽  
◽  
Arzuman Qardaşxan oğlu Həsənov ◽  
Sübhanə Füzuli qızı Abdullayeva ◽  
◽  
...  
Keyword(s):  
Key Words ◽  
Magnetic Materials ◽  
Magnetic Saturation ◽  
Magnetic Parameters ◽  
Key Words Iron

Some values of magnetic parameters of iron-containing nanoparticles were calculated. The result of the calculations show that starting from 5 nm, the dimensions offen, nanoparticles behave themselves as magnetic materials. Key words: iron-containing nanoparticles, magnetic saturation, magnetic perception, ferromagnetic, superparamagnetic

Microstructure and properties of FeSi6,5 soft magnetic materials prepared by spark plasma sintering

2021 ◽  
Vol 96 ◽  
pp. 2-8
Author(s):  
Trung Tran Bao ◽  
◽  
Phuong Doan Dinh ◽  
Linh Nguyen Ngoc ◽  
Toan Nguyen Van ◽  
...  
Keyword(s):  
Magnetic Materials ◽  
Heating Rate ◽  
Spark Plasma Sintering ◽  
Sintering Temperature ◽  
Soft Magnetic Materials ◽  
Magnetic Saturation ◽  
Soft Magnetic ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Research Show

In this paper, FeSi6,5 (6.5 wt.% Si) soft magnetic materials have been prepared Via a Spark Plasma Sintering (SPS) technique at difference sintering temperatures in the range of 1150 to 1300 °c for 15 min and a heating rate of 100 °c/min. The results show that the density of sintered samples increased with the rising sintering temperature resulted in the enhancement of Vickers hardness and magnetic properities otsintered samples. Hovvever, the highest magnetic saturation (Ms) of 209.6 emu/g and lowest coercivity (Hc) of 1.85 Oe were obtained for the SPSed sample at 1250 °c. In contrast, the sample sintered in vacuum at 1300 °c for 1h with heating rate of 20 °c/min shows the lower magnetic properties due to the lower density and high amount of pores in the structure. The results of research show that the spark plasma sintering route has a high potential of fast sintering Fe-Si soft magnetic materials and for application.

Influence of Pr and Tb oxides on magnetic parameters of hard magnetic materials based on the alloy Pr – Fe – B

2017 ◽  
pp. 86-90
Author(s):  
V. P. Tarasov ◽  
◽  
A. V. Kutepov ◽  
O. V. Khokhlova ◽  
A. V. Ryabova ◽  
...  
Keyword(s):  
Magnetic Materials ◽  
Hard Magnetic Materials ◽  
Magnetic Parameters

Analysis of dependence between magnetic properties of granulated ferromagnetic specimens and relation of its length to diameter

2020 ◽  
pp. 46-51
Author(s):  
Alexander V. Sandulyak ◽  
Roman Y. Tkachenko ◽  
Darya A. Sandulyak ◽  
Maria N. Polismakova ◽  
Anna A. Sandulyak ◽  
...  
Keyword(s):  
Experimental Data ◽  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Field Intensity ◽  
Magnetic Permeability ◽  
Negative Impact ◽  
Relative Length ◽  
Magnetic Saturation ◽  
Functional Elements ◽  
Magnetic Parameters

Paper studies the problems about experimental determining magnetic parameters of nonuniform granular magnetics. It has been noted that the existing shortage of direct and (or) indirect experimental data on the magnetic properties of granular ferromagnetic specimens with different values of a relative length, in particular, has a negative impact on the validity of the requirements and decisions to create and ensure the performance of relevant functional elements, movable operating elements of various equipments and devices. By the example of cylindrical specimens of balls with the range of relative length 1–16 within the framework of effective medium macromodel the dependences of induction, magnetic permeability, susceptibility, magnetization and field intensity have been obtained. It has been shown that in the range of field intensity 9–47 kA/m values of induction and magnetization of investigating specimens increase, that indicates the absence of magnetic saturation of such granular (as opposed to solid) magnetics. And this is the case at almost stable values of magnetic susceptibility and permeability. Obtained results are useful in designing movable operating elements of various equipments and devices.

Nanocrystalline Soft Magnetic Cores in Applications

2005 ◽  
Vol 473-474 ◽  
pp. 459-464 ◽  
Author(s):  
R. Juhász ◽  
S. Szabó ◽  
Z. Kátai ◽  
F. Bakos ◽  
Dezső L. Beke
Keyword(s):  
Magnetic Field ◽  
Magnetic Materials ◽  
Magnetic Behavior ◽  
Induced Anisotropy ◽  
Soft Magnetic ◽  
Magnetic Parameters ◽  
On Demand ◽  
Magnetic Cores ◽  
Wide Range ◽  
Macroscopic Parameters

Finemet type materials show extremely soft magnetic behavior with excellent and in wide range on-demand variable macroscopic parameters [1]. Requirements for the most important magnetic parameters (e.g. permeability, coercitive force, saturation, loss) are determined by the targeted applications. We report results on the optimization of crystallization treatments and parameter tailoring by magnetic field induced anisotropy. As compared to the most widely used magnetic materials our samples have parameters of real measure of excellence.

HIGH ENERGY SPECTROSCOPY OF MAGNETIC MATERIALS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-25-C8-29 ◽  
Author(s):  
J. C. Fuggle ◽  
J. F. van Acker
Keyword(s):  
Magnetic Materials ◽  
High Energy

Multislice imaging of gastrointestinal stromal tumors

2018 ◽  
pp. 3-14
Keyword(s):  
Computed Tomography ◽  
Key Words ◽  
Gold Standard ◽  
Gastrointestinal Stromal Tumors ◽  
Mesenchymal Tumors ◽  
Stromal Tumors ◽  
Preferential Localization ◽  
Multislice Imaging ◽  
Computed Tomography Diagnosis

Gastrointestinal stromal tumors (GIST) are the most common mesenchymal tumors of the digestive tract (1%). These tumors express the CD 117 in 95% of cases. The stomach is the preferential localization (70%). Diagnosis is difficult and sometimes late. Progress of imaging has greatly improved the management and the prognosis. Computed tomography (CT) is the gold standard for diagnosis, staging, and treatment follow-up. The increasing recognition of GIST’s histopathology and the prolonged survival revealed some suggestive imaging aspects. Key words: gastro-intestinal stromal tumors; computed tomography; diagnosis

METHODS OF CONSULTING ON STUDYING THE DEGREE OF MOISTURE SUPPLY OF SLOPE LANDS FOR AGRICULTURAL PRODUCTION IN AZERBAIJAN

2018 ◽  
Author(s):  
Prof.RAE Aliev Z.H.
Keyword(s):  
Key Words ◽  
Agricultural Production ◽  
Soil Ecology ◽  
Arable Soil ◽  
Clean Technology ◽  
Agricultural Product ◽  
Current Information ◽  
Moisture Supply ◽  
Managerial System

The current information on moisture and the temperature of the ground in managerial system by production to agricultural product necessary, in the first place, for taking the operative decisions at development ecological clean technology irrigation under growing agricultural cultures to achieve the maximum harvest. Key words: aerospace methods, COW, moisture, moisture test, arable, soil, ecology, vafer humidity, drill, graduation, tool, etc.

PELAKSANAAN HUKUM KEWARISAN ISLAM DI PENGADILAN AGAMA BANTEN

ALQALAM ◽  
2013 ◽  
Vol 30 (1) ◽  
pp. 158
Author(s):  
Yusuf Somawinata
Keyword(s):  
Key Words ◽  
Islamic Law ◽  
Survey Methods ◽  
Adopted Children ◽  
Inheritance Law ◽  
Library Research ◽  
The Ideal

This article aims at describing the obseroance of wasiat wajibah (compulsory bequeathment) in the Islamic court of Banten, analyzing the provision of the substitute heir and adopted children in the Compilation of  Islamic Law (KHI). In addition, the ideal laws to manage the innheritance rules in Indonesia. This article is library research by using doctrinal approach and using case study and survey methods. The data was, then, analyzed by using analytical descriptive and analytical correlative methods. The result showed that the observance of wasiat wajibah in the Islamic court of  Banten employed by judges is by using the Mawali Hazairin’s Doctrine. The criteria of the adoption of substitute heir and adopted children in the KHI is the attempts of Ulama and many judgees junst in giving legal justice and certainty to the society.   Key Words: Islamic Inheritance Law, Compilation of Islamic Law, Islamic court of  Banten

Phosphorus fertilization in inbred and hybrid rice

1970 ◽  
Vol 19 (2) ◽  
pp. 181-187
Author(s):  
MR Islam ◽  
PK Saha ◽  
SK Zaman ◽  
MJ Uddin
Keyword(s):  
Grain Yield ◽  
Key Words ◽  
Hybrid Rice ◽  
Phosphorus Fertilization ◽  
Phosphorus Fertilizer ◽  
Yield Difference ◽  
P Balance ◽  
Rice Genotypes ◽  
Boro Rice

Five phosphorus rates (0, 5, 10, 20 and 30 kg P/ha) were tested with four rice genotypes in Boro (BRRI dhan36, BRRI dhan45, EH1 and EH2) and T. Aman (BRRI dhan30, BRRI dhan49, EH1 and EH2) season. Phosphorus rates did not influence grain yield irrespective of varieties in T. Aman season while in Boro season P response was observed among the P rates. Application of P @ 10 kg/ha significantly increased the grain yield. But when P was applied @ 20 and 30 kg P/ha, the grain yield difference was not significant. The optimum and economic rate of P for T. Aman was 20 kg P/ha but in Boro rice the optimum and economic doses of P were 22 and 30 kg/ha, respectively. Hybrid entries (EH1 and EH2) used P more efficiently than inbred varieties. A negative P balance was observed up to 10 kg P/ha. Key words: Response; Phosphorus fertilizer; Inbred; Hybrid rice DOI: http://dx.doi.org/10.3329/dujbs.v19i2.8962 DUJBS 2010; 19(2): 181-187

Laparoscopic adrenal cystectomy - report of two cases

1970 ◽  
Vol 19 (1) ◽  
pp. 50-53
Author(s):  
GM Zakir Hossain ◽  
Mofizur Rahman ◽  
Mohammad Rashedul Hasan
Keyword(s):  
Key Words ◽  
College Teachers ◽  
Medical College

Key words: laparoscopic; adrenal cystectomydoi: 10.3329/jcmcta.v19i1.3854Journal of Chittagong Medical College Teachers' Association 2008: 19(1):50-53

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