MAGNETIC MATERIALS AND THEIR PROPERTIES

Lecture Electromechanical energy conversion - Magnetic circuits and magnetic materials presents the following content: Introduction to magnetic circuits; flux linkage, inductance, and energy; properties of magnetic materials; AC excitation; permanent magnets; application of permanent magnet material[r]

Perovskite SrMO 3 is a centrosymmetric solid with a typical cubic perovskite structure in Pm 3 m space group, in which the Sr 2 þ cat- ions are 12-fold coordinated forming cuboctahedral SrO 12 clusters, whereas the M 4 þ cations are 6-fold coordinated [27] . The octahe- dral MO 6 clusters form the f[r]

for the electron’s intrinsic spin moment turns out to be 2.0023. The spin moment of the electron is 1.00116 µ B . For practical purposes, this small correction can be ignored.
The reality of the link between magnetism and angular momentum, known as the Einstein–de Haas effect, was demonstra[r]

Pure BiFeO3 (BFO) and Bi1-xHoxFe0.97Ni0.03O3 (x = 0, 0.025, 0.05, 0.075, and 0.1) materials were synthesized by a sol-gel method. The influence of (Ho, Ni) co-doping on structural, magnetic and electrical properties of BFO materials were investigated by different techniques as X-ray diffraction (XRD[r]

Comprehensive nuclear materials 1 05 radiation induced effects on material properties of ceramics (mechanical and dimensional) Comprehensive nuclear materials 1 05 radiation induced effects on material properties of ceramics (mechanical and dimensional) Comprehensive nuclear materials 1 05 rad[r]

2.1 Intr Intr Intr Introduction Intr oduction oduction oduction oduction
The knowledge of materials and their properties is of great significance for a design engineer. The machine elements should be made of such a material which has properties suitable for the c[r]

CALCIUM CARBIDE. A hard, grayish-black, crystalline substance used chiefly for the production of acetylene gas for welding and cutting torches and for lighting. It was discovered in 1892 and was widely employed for theater stage lighting and for early automobile head- l[r]

Researching and developing technology for producing magnetic graphite materials from Vietnamese flake graphite sources as materials to be applied in treating the organic polluted environment.

PROPERTIES OF ELECTROMAGNETIC RADIATION  Wave/particle duality  Perpendicular _E _and _B _ components – E = electric field – B = magnetic field  Wave properties: – Wavelength frequenc[r]

1. Introduction
The subject of investigation in this work is oxygen isotope exchange (OIE) between oxides and oxygen-containing gases 18 О 2 and С 18 О 2 . OIE studies yield information about the rate of processes on the gas – solid interface and oxygen self-diffusion in[r]

This work presents the synthesis and characterization of MnAC materials and the effect of stirring methods, namely magnetic and ultrasonic stirring, to electrochemical property of the as-prepared materials based on cyclic voltammetry (CV) and galvanostatic charge/discharge tests.

The following two chapters are dedicated to the analysis of electromagnetic field sources. An initial development of the equations used to describe dipole radiation in a vacuum is made. The interaction of radiation with electrons in a material is detailed in terms of the processes of diffusion, no[r]

When a solid surface is irradiated with a beam of photons, electrons or ions, species are generated in various combinations. An analytical method for surface characterization consists of using a particular type of probe beam and detecting a particular type[r]

The purpose of this lecture is to: – shed light on the importance of microstructure for the corrosion resistance properties, physical proper-ties and mechanical properproper-ties of the [r]

The goad of the thesis is to build the manufacture process of nano-sized magnetic fluids based on iron oxide (uniform particle size and high magnetic saturation) with stable technology; Characteristic research of magnetic properties of magnetic nanoparticles; assessment of toxicity and test of effec[r]

In general, the material’s properties sharply decrease under the pressure of ground conditions and the presence of salt minerals and fertilizer in the soil. Uncontrolled release of water is one of the main factors limiting their application in agriculture. Therefore, the target of this work is to de[r]

Spin labeling, as a part of electron paramagnetic resonance (EPR), became one of the most sensitive and adequate methods for investigation the structure, properties of different biological systems, their dynamics, and mechanisms of various processes after opening a new[r]

© 2018 The Authors. Publishing services by Elsevier B.V. on behalf of Vietnam National University, Hanoi. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ ).
1. Introduction
ZnO is a wide bandgap semiconductor with 3.37 eV and a large ex[r]

Lead-free ferroelectric Bi0.5Na0.5TiO3 materials integrated ferromagnetism and photoluminescence at room temperature. Fe and Sm cations were used as the magnetic and photoluminescence sources for the co-modified host Bi0.5Na0.5TiO3 materials. The (Fe, Sm)-modified Bi0.5Na0.5TiO3 materials were fabri[r]

CALCIUM CARBIDE. A hard, grayish-black, crystalline substance used chiefly for the production of acetylene gas for welding and cutting torches and for lighting. It was discovered in 1892 and was widely employed for theater stage lighting and for early automobile head- l[r]