Magnetite showed the strongest microwave absorption and rapid heating rate because of its dielectric and magnetic losses. Dielectric properties and calorimetry indicate that two pyrite samples had different microwave absorption characteristics, but a similar heating rate. Three types of hematite had a ...
The transformation of magnetite to hematite occurs along {111} planes, and results in the development of hematite domains along {111} that are parallel to the foliation. The difference in volume created by the transformation of magnetite to hematite and the shear stress acting on the interphase ...
magnetitehematitecrystalorientation赤铁矿磁铁矿 Crystal orientation effects in δ 18 O for magnetite and hematite by SIMS Jason M. Huberty ⁎, Noriko T. Kita, Reinhard Kozdon, Philipp R. Heck 1 , John H. Fournelle, Michael J. Spicuzza, Huifang Xu, John W. Valley WiscSIMS and NASA Astr...
They verified that the needed hematite/magnetite ratio to make the peak visible is 1/1 and this finding spurred them to abandon the hypothesis of magnetite presence. They concluded that the presence of the peak at 660 cm−1 is possibly due to the disorder-induced activation of the lcoon...
Magnetite Mineral Limonite Siderite Hematite Ore Separating Equipment Dry Type Magnetic Separator Our factory produce one roller, two rollers, three rollers, four rollers dry type high intensity magnetic separator and low intensity magnetic separator, magnetic field intensit...
However, mineral particles with low density have a slow settling speed in the water flow and are located in the upper space of the material layer. Due to the difference in density, it is difficult for materials with low density to enter the lo...
During practical production, siderite has an influence on flotation efficiency to hematite and magnetite. In flotation system of dodecylamine, this paper s... LX Li,WZ Yin,XL Yu,... - 《Advanced Materials Research》 被引量: 2发表: 2012年 ...
ElsevierScienceB.V.Allrightsreserved. Keywords:InsituXRD;Nanocrystals;XANES;TEM;Kinetics;Maghemite;Hematite;Iron 1.Introductionshowsimilarbehaviorofcubicg-AlOandhexa- 23 gonala-AlO.Informationonthestabilityof 23 Itisknownthatcoarsegrainedmaghemite(g-maghemitewasmostlyobtainedbyDTA[5–7]. FeO)isonlya...
The difference in the crystallite size calculated using X-ray diffraction and particle size obtained by SEM is due to the fact that the particles composed of several crystallization domains are observed by X-rays while whole particle is observed with SEM (Vazquez et al. 1998). The increase in...
As the method of obtaining magnetic iron-based alloy particles having uniform characteristics and high coercive force by forming a fixed bed, there are known a method in which needle-shaped magnetite is obtained by reduction at a temperature of less than 350° C. while specific steam is introduc...