chromite magnetic view
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chromite magnetic view

(PDF) Magnetic Susceptibilities of Chromites from Oman

1997-10-1  ... ntine and chromite . Chromite is para - magnetic at room temperature and becomes antiferro - magnetic at low temperature ( 88 K ) .

Low temperature magnetic transition of chromite in ...

2011-5-25  [11] Chromite (FeCr 2 O 4) is an ubiquitous accessory mineral in meteorites, in particular in OC. Cr 2 O 3 concentrations in OC are very constant, with a mean value of 0.52 ± 0.05 wt% (n = 175 [Jarosewich, 1990]). Chromite being the only significant Cr‐bearing phase, an average mass content of 0.77 wt % can be computed for chromite in OC.

GRINDABILITY AND MAGNETIC PROPERTY OF

It is supposed that the distribution of magnetic ions is not uniform in the crystal structure and so the ferrimagnetism is generated in some higher concentrated parts. AB - Mineralogical properties of eight kinds of chromites from various localities, and their effects on the grindability and magnetic

Structural, Optical, and Magnetic Properties of Highly ...

2019-12-12  Magnetic evolution from the superparamagnetism in nanospinel chromites Cd1−Co Cr2O4 (0 ≤ x ≤ 1.0). Journal of Magnetism and Magnetic Materials 2020, 495 , 165830. https://doi/10.1016/j.jmmm.2019.165830; Pankaj Choudhary, P. Saxena, A. Yadav, A. K. Sinha, V. N. Rai, M. D. Varshney, A. Mishra.

The magnetic properties of chromium

THE MAGNETIC PROPERTIES OF CHROMIUM BY L. F. BATES, D.Sc., Reader in Physics, University College, London AND A. BAQI, MSc. (ALIGARH) Received April 3, 1936. Read in title June 26, 1936 ABSTRACT. Pure chromium has been prepared from chromium amalgam and its magnetic susceptibility has been studied over the temperature range 90 to 620' K.

Chromite - ScienceDirect

2016-1-1  Chromite is an oxide mineral belonging to the spinel group, a complex mineral containing magnesium, iron, aluminum, and Cr in varying proportions, depending on the deposit, that can be represented as FeCr 2 O 4 or (Fe 2+,Mg)[Cr,Al,Fe 3+] 2 O 4

High-Intensity Magnetic Separation Processing of ...

intensity magnetic field (~0.8–1.4 T), chromite can be sepa- rated as a magnetic product from the para-magnetic gangue minerals such as hematite, goethite, etc.

Role of Mn doping on magnetic properties of

2021-4-15  The structural and magnetic properties of Mn doped Nickel Chromite (Ni1-x Mn x Cr 2 O 4, x = 0, 0.2, 0.3, 0.4, 0.6, 0.8) nanoparticles (NPs) were studied in detail. The X-ray diffraction analysis affirms normal spinel structure for all the samples and average crystallite size was found in

Chromite Mineral Data

General Chromite Information. Chemical Formula: Fe++Cr2O4. Composition: Molecular Weight = 223.84 gm. Chromium 46.46 % Cr 67.90 % Cr 2 O 3. Iron 24.95

Chromite sand separation - GIESSEREILEXIKON.COM

Permanently magnetic, high intensity separators are used in combination with cleaning and dust-removal devices. The magnetic separator has two consecutive separation steps. In the first step, magnetic metal parts are removed, while in the second step, the chromite sand is separated from the quartz sand with a stronger magnet.

Magnetic Structure of Manganese Chromite: Journal

2004-6-11  Numerous attempts have been made to explain the anomalous magnetic properties of chromites and of mixed spinels containing chromium on the basis of the theoretical models of Néel and of Yafet and Kittel. Recent calculations by T. A. Kaplan and co‐workers, using a classical Heisenberg model, have shown that over an appreciable range of the ratio of the BB to the AB interaction, the ground ...

Low temperature magnetic transition of chromite in ...

2011-5-25  As a sensitive indicator of the chemical composition spectrum of chromite population, and in view of the high sensitivity of chromite to thermal metamorphism in chondrites [Johnson and Printz, 1991], we surmise that further studies may be able to establish a robust link between LT magnetic properties and incipient thermal metamorphism in ...

GRINDABILITY AND MAGNETIC PROPERTY OF

Fingerprint Dive into the research topics of 'GRINDABILITY AND MAGNETIC PROPERTY OF CHROMITES FROM VARIOUS LOCALITIES IN RELATION TO THEIR MINERALOGICAL PROPERTIES: FUNDAMENTAL STUDIES ON MINERAL PROCESSING OF CHROMITES (3RD REPORT).'. Together they form a unique fingerprint. Chromite Engineering Materials Science

Magnetic Phase Transitions in Cobalt Chromite ...

2010-10-9  Cobalt chromite (CoCr2O4), an insulating normal spinel compound, is a potential multiferroic material. We report that pure, nanosize CoCr2O4 particles are synthesized through a conventional coprecipiation technique by controlling the pH of the precipitation. Both single-crystal and polycrystalline samples develop long-range ferrimagnetic order below the Curie temperature, T c (97 K), and a ...

Low-temperature magnetism of troilite and chromite

Troilite is the stoichiometric end-member of the pyrrhotite mineral group and ranks among the most wide-spread minerals in extraterrestrial materials. The low temperature magnetic data measured on troilite powderized fraction extracted from the Bruderheim L6 chondrite and Cape York IIIA iron meteorites suggest an existence of the magnetic transition at ≈ 70 K (Kohout et al. 2007, 2010).

Structural, Optical, and Magnetic Properties of Highly ...

2019-12-12  Herein is reported the synthesis and characterization of nanocrystalline cobalt chromite (CoCr2O4) and zinc chromite (ZnCr2O4) thin films with highly ordered cubic networks of open pores averaging 15 nm in diameter. We also show that the synthesis method employed in this work is readily extendable to solid solutions of the type MCr2–xFexO4 (M = Co, Zn), which could pave the way for ...

Concentration of chromite from the Kempersayi

Serpentines which accompany different varieties of Kempersayi chromites are endowed with higher magnetic susceptibility than chromite ore due to the presence of microscopic magnetite veinlets. Serpentine grains without magnetite inclusions as well as calcite and quartz are non-magnetic. A concentration procedure for chromite ore from the Kempersayi deposit has been elaborated and

Chromite mineral information and data

Chromite is a common and widespread mineral that occurs in the ultramafic layers of layered igneous intrusions, as an accessory mineral in Alpine-type peridotites, as a

Role of Mn doping on magnetic properties of

2021-4-15  The structural and magnetic properties of Mn doped Nickel Chromite (Ni 1-x Mn x Cr 2 O 4, x = 0, 0.2, 0.3, 0.4, 0.6, 0.8) nanoparticles (NPs) were studied in detail. The X-ray diffraction analysis affirms normal spinel structure for all the samples and average crystallite size was found in

Magnetic and magnetocaloric properties of iron

The ac magnetic measurements not only confirmed the Cr 3+ ordering transitions in these samples (obtained using dc magnetic measurements), but also clearly showed the Ho 3+ ordering at ∼10 K in the present HoCrO 3 and HoCr 0.7 Fe 0.3 O 3 samples, which to our knowledge, is the first ac magnetic evidence of Ho 3+ ordering in this system.

GRINDABILITY AND MAGNETIC PROPERTY OF

Fingerprint Dive into the research topics of 'GRINDABILITY AND MAGNETIC PROPERTY OF CHROMITES FROM VARIOUS LOCALITIES IN RELATION TO THEIR MINERALOGICAL PROPERTIES: FUNDAMENTAL STUDIES ON MINERAL PROCESSING OF CHROMITES (3RD REPORT).'. Together they form a unique fingerprint. Chromite Engineering Materials Science

Low temperature magnetic transition of chromite in ...

2011-5-25  As a sensitive indicator of the chemical composition spectrum of chromite population, and in view of the high sensitivity of chromite to thermal metamorphism in chondrites [Johnson and Printz, 1991], we surmise that further studies may be able to establish a robust link between LT magnetic properties and incipient thermal metamorphism in ...

Magnetic Structure of Manganese Chromite: Journal

2004-6-11  Numerous attempts have been made to explain the anomalous magnetic properties of chromites and of mixed spinels containing chromium on the basis of the theoretical models of Néel and of Yafet and Kittel. Recent calculations by T. A. Kaplan and co‐workers, using a classical Heisenberg model, have shown that over an appreciable range of the ratio of the BB to the AB interaction, the ground ...

Magnetic Phase Transitions in Cobalt Chromite ...

2010-10-9  Cobalt chromite (CoCr2O4), an insulating normal spinel compound, is a potential multiferroic material. We report that pure, nanosize CoCr2O4 particles are synthesized through a conventional coprecipiation technique by controlling the pH of the precipitation. Both single-crystal and polycrystalline samples develop long-range ferrimagnetic order below the Curie temperature, T c (97 K), and a ...

Structural, Optical, and Magnetic Properties of Highly ...

2019-12-12  Herein is reported the synthesis and characterization of nanocrystalline cobalt chromite (CoCr2O4) and zinc chromite (ZnCr2O4) thin films with highly ordered cubic networks of open pores averaging 15 nm in diameter. We also show that the synthesis method employed in this work is readily extendable to solid solutions of the type MCr2–xFexO4 (M = Co, Zn), which could pave the way for ...

Chromite separating dry electromagnetic magnetic

Chromite separating dry electromagnetic magnetic separator price, US $ 100 - 999 / Set, Manufacturing Plant, Energy Mining, South Korea, Chile, UAE, None.Source from Xi'an Desen Mining Machinery Equipment Co., Ltd. on Alibaba.

Chromite - Photo Gallery

Field of View: 2.14 mm SEM image of polished specimen. Grey in BSE grain of Chromite (note that this is the real, analyticaly confirmed Chromite) is intersected by more bright veinlets of Chrommagnetite and overgrown by most bright rim of Ishkulite. It also contains inclusion of the darkmost in BSE plate of Brucite. Dark-grey matrix is Serpentine.

Magnetic and magnetocaloric properties of iron

The ac magnetic measurements not only confirmed the Cr 3+ ordering transitions in these samples (obtained using dc magnetic measurements), but also clearly showed the Ho 3+ ordering at ∼10 K in the present HoCrO 3 and HoCr 0.7 Fe 0.3 O 3 samples, which to our knowledge, is the first ac magnetic evidence of Ho 3+ ordering in this system.

Magnetic and magnetocaloric properties of iron subs ...

2016-1-11  @article{osti_1324067, title = {Magnetic and magnetocaloric properties of iron subs tituted holmium chromite and dysprosium chromite}, author = {Yin, Shiqi and Sharma, Vinit and McDannald, Austin and Reboredo, Fernando A. and Jain, Menka}, abstractNote = {In this work, structural, magnetic, and magnetocaloric properties of HoCrO3 and Fe substituted HoCrO3 and DyCrO3 (i.e.

Chromite - Photo Gallery - Mindat

Field of View: 1.5 m Pieces of pure massive chromite, the largest is 25 X 30 X 30cm. The composition of the chromite from this deposit is reported to be (Fe 0.61 Mg 0.38)(Cr 1.35 Al 0.54 Fe 0.10 Ti 0.01)O 4

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