mining Magnetization
- صفحه اصلی
- mining Magnetization
Niron's proprietary Clean Earth Magnet® technology based on Iron Nitride enables magnets that possess inherently higher magnetization compared to today's rare earth magnets and will enable a ...
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In NMR the net magnetization is detected in the xy plane, giving rise to the FID (Free Induction Decay). The process by which the magnetization in the xy plane decays to its equilibrium value of zero is known as T 2 relaxation, transversal relaxation, relaxation in the xy plane, or spin-spin relaxation. However, in practice, the transversal …
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ABSTRACT Remanent magnetization and self-demagnetization change the magnitude and direction of the magnetization vector, which complicates the interpretation of magnetic data. To deal with this problem, we evaluated a method for inverting the distributions of 2D magnetization vector or effective susceptibility using 3C borehole magnetic data. The …
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A brief survey of the recent advances in Fe-based nanocrystalline soft magnetic alloys has shown that the saturation magnetization (J s) of these alloys is governed by the mass fraction, rather than the atomic fraction, of the nonmagnetic additives.Thus, the ultimate limit of J s in the alloys prepared by nano-crystallization of …
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Microwave magnetization roasting has become a hot research topic in recent years due to it has the advantages of high efficiency, catalytic action, selective heating, and environment protection [[31], [32], [33]]. However, the microwave magnetization roasting technology is still in the research stage, and there is no industrial application example.
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The magnetic method is the most promising method that can be used to inspect large areas of reinforced concrete (RC) structures. Magnetization is a crucial process in this method. The paper aims to present the impact of the magnetization method on the results in the detection of reinforced bars (rebars) and the evaluation of concrete …
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An airborne magnetic survey revealed three east–west elongated magnetic anomalies, characterized by a significant remanent magnetization. The sources of these anomalies …
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Magnetic particle inspection is an inspection method used to identify defects on the surface of ferromagnetic materials by running a magnetic current through it. It can also be used to detect defects just beneath the surface …
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As a typical refractory iron ore, the utilization of limonite ore with conventional mineral processing methods has great limitations. In this study, suspension magnetization roasting technology was developed and utilized to recover limonite ore. The influences of roasting temperature, roasting time, and reducing gas concentration on the …
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Sm 2 Fe 17 N 3, which was discovered about seven years after Nd 2 Fe 14 B, has excellent intrinsic magnetic properties. Its uniaxial anisotropy, K 1, Curie temperature, T c and spontaneous magnetization, M s are superior or comparable to those of earlier rare-earth permanent magnet materials. The ternary nitride is prepared from Sm 2 Fe 17 by …
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Fig. 6 (a) depicts the paramagnetic state above Tc (spontaneous magnetization disappears). In 0° domains, the spontaneous magnetization rotates the spins and the electron clouds into the orientation determined by the crystal anisotropy, as shown in Fig. 6 (b). The nuclei are forced further apart, and positive spontaneous magnetostriction occurs.
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Niron's proprietary Clean Earth Magnet® technology based on Iron Nitride enables magnets that possess inherently higher magnetization compared to today's rare earth magnets and will enable a ...
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In order to explore the magnetic moment rotation in nanocrystalline soft magnetic alloys under high-frequency sinusoidal excitation, based on G. Herzer's stochastic anisotropy theory and symmetry principle, a three-dimensional model of nanocrystalline alloy was established, and a sinusoidal alternating magnetic field with a frequency f of 1 kHz to …
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Magnetization. Magnetization of Nd-Fe-B is carried out using similar methods and equipment as described earlier for Sm-Co-based magnets. Dy Diffusion. In …
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Magnetization is the degree to which a body is magnetized once it is magnetized. Magnetization is the process by which an element acquires magnetic properties, through the application of a magnetic field. A magnetic field is an electrically charged area that possesses a force produced as a result of the traffic of electric charges.
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Dust pollution and heat damage hazards are important problems affecting underground safety production. This paper is aimed at exploring the optimal magnetization conditions of magnetized water for dust removal and temperature reduction and improving the utilization rate of water. First, the surface tension, viscosity, and specific heat …
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open access. In this paper, a process of pre-oxidation and magnetization roasting followed by low-intensity magnetic separation and acid leaching (OMLA) was …
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A magnet is magnetized using two methods: static magnetization and pulse magnetization. The former generally creates smaller magnetic fields, while the latter is generally used for stronger magnetization. The method of magnetization is determined by various characteristics of the magnet, such as material, strength, and shape.
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The issue of emitter clogging is a common phenomenon in drip fertigation systems, which causes uneven irrigation and fertilization. However, efficient and environmentally friendly methods are scarcely available for alleviating clogging. In the present study, we investigated the anti-fouling efficacy of three magnetic field strength …
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mining operations but it should be confined to a surface mining method to mine out the dimensional stones such as slate, marble, granite etc. Quarrying is a
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Magnetization treatment effectively relieved emitter clogging, which increased the average discharge variation rate (Dra) by 4.1–29.0% and 2.6–64.4%, respectively, and decreased the dry weight (DW) of the clogging substance by 14.0–64.6% and 15.0–75%, respectively, in the two planting seasons, compared with that of the non …
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It is well known that magnetic nanofluids are widely applied in various fields ranging from heat transfer to miniature cooling, and from damping to sealing, due to the mobility and magnetism under magnetic field. Herein, the PFPE-oil based magnetic nanofluids with superior magnetization and dispersion stability were obtained via …
به خواندن ادامه دهیدThe magnetization roasting–grinding classification–weak magnetic separation method was selected, and the parameters, including roasting temperature, roasting time, reducing agent amount, and grinding fineness, were explored. Next, the red iron was produced via the high-temperature hydrothermal method, and the reaction parameters …
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The grand challenges in paleomagnetism, rock magnetism, and environmental magnetism are related to the mining of this archive and deciphering its stored records. ... Magnetization proceeds as a series of small jumps caused by sudden irreversible motion of the magnetic domain walls due to changes in the magnetic field. If the magnetization is ...
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Coal has in general a wide range of density from minus 1.3 to plus 2.0 g/cm 3 because of its variations in purity, rank, and porosity, etc. The coal density has great impact on froth flotation performance, but much less attention has …
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Magnetic potential field is caused by the variation in magnetization in the Earth's crust. This potential field is observed over a plane close to the surface of the Earth. If the magnetization variations …
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mining magnetization and specific core losses characteris-tics were conducted. The studies were made for 50 ÷ 350 Hz frequency range at the highest possible values of mag-
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To date, the magnetization switching induced by TI SOT is solely reported in a Cr-doped TI at a very low temperature (1.9 K) with an external magnetic field 11, and the SOT-induced magnetization ...
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In this paper, an innovative method is proposed to upgrade iron and remove phosphorus from high-phosphorus oolitic hematite ore by the sodium magnetization roasting–magnetic separation–sulfuric acid and sodium hydroxide leaching process. The process parameters of sodium magnetization roasting, acid leaching, and alkaline …
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