Results 11 to 20 of about 146,771 (344)

Relationship between magnesium-bearing magnetite formation and magnetite oxidation

open access: yesJournal of Materials Research and Technology
The impact of different oxidation atmospheres on the formation of magnesium-bearing magnetite in the Fe3O4–MgO and Fe2O3–MgO systems was investigated using FactSage 8.3 thermodynamic modeling, XRD, XPS, and SEM-EDS. This study also examined the influence
Fang Zhang   +6 more
doaj   +2 more sources

Electrically driven phase transition in magnetite nanostructures

open access: yesNature Materials, 2007
Magnetite (Fe$_{3}$O$_{4}$), an archetypal transition metal oxide, has been used for thousands of years, from lodestones in primitive compasses[1] to a candidate material for magnetoelectronic devices.[2] In 1939 Verwey[3] found that bulk magnetite ...
Sungbae Lee   +2 more
exaly   +3 more sources

Experimental Study on Beneficiation of Coarse Concentrate from Shizhuyuan Magnetite Mine

open access: yesKuangchan zonghe liyong, 2022
A small amount of magnetite is associated with the Shizhuyuan Tungsten Molybdenum Bismuth Fluorite polymetallic ore, the total iron grade is 7.15%, the iron grade in the magnetite is 1.68%, which is 23.50% of the total iron.
Bing Long   +5 more
doaj   +1 more source

Nanofikasi Fraksi Tanah Gambut untuk Modifikator Nanomagnetit/AH-Kitosan sebagai Kandidat Penanggulangan Pencemaran Zat Warna

open access: yesChempublish Journal, 2021
The nanomagnetite/HA-Chitosan adsorbent has been successfully synthesized by the co-precipitation method. HA was synthesized from the peat soils of Geragai village, Tanjung Jabung Timur, Jambi province and chitosan isolated from marine animal shell waste
Ngatijo Ngatijo   +5 more
doaj   +1 more source

PAN—Composite Electrospun-Fibers Decorated with Magnetite Nanoparticles

open access: yesMagnetochemistry, 2022
The results of the synthesis of PAN(polyacrylonitrile)-magnetite composite fibers using the electrospinning method are presented. The electrospinning installation included a rotating drum collector for collecting fibers.
Zulkhair Mansurov   +4 more
doaj   +1 more source

The Estimation of Magnetite Prospective Resources Based on Aeromagnetic Data: A Case Study of Qihe Area, Shandong Province, China

open access: yesRemote Sensing, 2021
In the Qihe area, the magnetic anomalies caused by deep and concealed magnetite are weak and compared with ground surveys, airborne surveys further weaken the signals. Moreover, the magnetite in the Qihe area belongs to a contact-metasomatic deposit, and
Xiuhe Gao   +4 more
doaj   +1 more source

SINTESIS DAN KARAKTERISASI MAGNETIT (Fe3O4): STUDI KOMPARASI METODE KONVENSIONAL DAN METODE SONOKIMIA

open access: yesAl-Ulum, 2020
Magnetite (Fe3O4) is one of the iron oxide compounds which has strong magnetic properties so that it is widely modified with other materials for application in solid phase extraction.
Maya Rahmayanti
doaj   +1 more source

Iron acquisition and mineral transformation by cyanobacteria living in extreme environments

open access: yesMaterials Today Bio, 2022
Iron is an essential micronutrient for most living organisms, including cyanobacteria. These microorganisms have been found in Earth's driest polar and non-polar deserts, including the Atacama Desert, Chile.
Wei Huang   +4 more
doaj   +1 more source

Synthesis and characterization of poly(styrene-co-divinylbenzene) and nanomagnetite structures

open access: yesMethodsX, 2022
The use of iron oxide nanoparticles for the synthesis of adsorbents materials with application in contaminated water remediation is based on both their magnetic and adsorption properties.
Mariana de Oliveira Reis   +2 more
doaj   +1 more source

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