摘要:
A method of producing one of magnetite and ferrite nanoparticles comprising the step of mixing an iron containing metal chemical with a fatty acid.
摘要:
Method for preparing soft cubic ferrites of a general formula MFe2O4 comprising the steps of contacting an iron containing by-product of iron ore processing and a metal oxide of the general formula MxOy, to form a mixture, wherein the stoichiometric ratio of M to iron is in the range from greater than zero to about 2, and wherein M is nickel, magnesium, or zinc, or a combination thereof; and calcining the mixture at a temperature range of from about 1000° C. to about 1500° C. in a static air atmosphere, to form a soft cubic ferrite of a general formula MFe2O4, wherein the mixture is not subjected to an oxidation step or a compacting step prior to calcining.
摘要翻译:用于制备通式为MFe 2 O 4的软立方铁氧体的方法,包括以下步骤:使含铁铁矿加工的副产物与通式为M x O y的金属氧化物接触,形成混合物,其中M与铁的化学计量比为 在大于零至约2的范围内,并且其中M为镍,镁或锌,或其组合; 并在静态空气气氛中在约1000℃至约1500℃的温度范围内煅烧混合物,以形成通式为MFe 2 O 4的软立方铁氧体,其中该混合物不经历氧化步骤或 煅烧前的压实步骤。
摘要:
Method for preparing soft cubic ferrites of a general formula Ma(1−i)MbiFe2O4 comprising the steps of contacting an iron source a first metal oxide having the general formula MbxOy and a second metal oxide having the general formula MaxOy to form a mixture, wherein the stoichiometric ratio of (Ma+Mb) to iron is in the range from greater than zero to about 2, and wherein Ma and Mb comprise nickel, magnesium, zinc, or a combination thereof; and calcining the mixture at a temperature range of from about 1000° C. to about 1500° C. in a static air atmosphere, to form a soft cubic ferrite of a general formula Ma(1−I)MbiFe2O4, wherein the mixture is not subjected to an oxidation step or a reduction step prior calcining.
摘要翻译:制备通式为Ma(1-i)MbiFe2O4的软立方铁氧体的方法,包括使铁源与通式为MbxOy的第一金属氧化物和具有通式MaxOy的第二金属氧化物接触以形成混合物的步骤,其中 (Ma + Mb)与铁的化学计量比在大于零至约2的范围内,其中Ma和Mb包含镍,镁,锌或其组合; 并在静态空气气氛中在约1000℃至约1500℃的温度范围内煅烧该混合物,以形成通式为Ma(1-I)MbiFe 2 O 4的软质立方铁氧体,其中该混合物不是 在煅烧之前进行氧化步骤或还原步骤。
摘要:
According to the present invention, there are provided ferrite particles for bonded magnets and a resin composition for bonded magnets which are capable of producing a bonded magnet molded product having a good tensile elongation and exhibiting excellent magnetic properties, as well as a bonded magnet molded product such as a rotor which is obtained by using the resin composition. The present invention relates to ferrite particles for bonded magnets having a bulk density of not less than 0.5 g/cm3 and less than 0.6 g/cm3 and a degree of compaction of not less than 65%, a resin composition for bonded magnets using the ferrite particles, and a molded product obtained by using the ferrite particles and the resin composition.
摘要:
A novel method of manufacturing a transition metal oxide having a spinel structure is provided. A mixture of powdery metals of metal elements constituting the transition metal oxide is heated in an oxidizing atmosphere to generate the transition metal oxide.
摘要:
Methods for preparing nanocomposites with thermal properties modified by powder size below 100 nanometers. Both low-loaded and highly-loaded nanocomposites are included. Nanoscale coated, un-coated, whisker type fillers are taught. Thermal nanocomposite layers may be prepared on substrates.
摘要:
The present invention provides ferrite powders for bonded magnet capable of suppressing increase of SFD, while widening a particle size distribution for obtaining flowability and compressed density, and also capable of suppressing deterioration of orientation and magnetizability, and provides a process for a production magnetoplumbite-type ferrite powders containing an oxide of at least one or more kinds of transition metals selected from a group consisting of Zr, Ti, Zn, Co, Mn, and Ni, having a mean particle size of 0.20 μm or more and less than 5.00 μm, being the ferrite powders for bonded magnet with the ratio of particles having particle size of 1 μm or less being 20 mass % or more in the magnetoplumbite-type ferrite powder size distribution obtained by a laser diffraction type particle size distribution analyzer.
摘要:
Methods for preparing low resistivity nanocomposite layers that simultaneously offer optical clarity, wear resistance and superior functional performance. Nanofillers and a substance having a polymer are mixed. Both low-loaded and highly-loaded nanocomposites are included. Nanoscale coated and un-coated fillers may be used. Nanocomposite films may be coated on substrates.
摘要:
The present invention relates to the use as a sensitive material in a thin layer for bolometric detection of infrared radiation, of a material having a spinel ferrite structure of chemical composition, ignoring doping agents if any are present, satisfying empirical formula I: Fe3-(x+y)MxAyO4+δ. The invention also provides a bolometric device for detecting infrared radiation or for infrared imaging, and including at least one sensor provided with a sensitive element in the form of a thin layer as defined above.
摘要翻译:本发明涉及在具有化学组成的尖晶石铁素体结构的材料的红外线辐射的测定用薄层的敏感材料中的用途,忽视掺杂剂,如果有的话,满足实验式I:Fe3-( x + y)MxAyO4 +δ。 本发明还提供一种用于检测红外辐射或用于红外成像的测温装置,并且包括至少一个传感器,其设置有如上所述的薄层形式的敏感元件。
摘要:
An image-forming recording liquid according to the invention contains magnetic polymer particles and a dispersion medium for dispersing the magnetic polymer particles. The magnetic polymer particles contain a magnetic powder and a polymeric compound. The polymeric compound is a polymer prepared by polymerization of at least one monomer selected from the group consisting of a (meth)acrylate monomer and a styrenic monomer. The dispersion medium contains water, polyvinyl alcohol and an acetylene glycol-based surfactant.