Abstract: A soft magnetic powder that can exhibit desirable soft magnetic characteristics. A dust core using the soft magnetic powder is also provided. The soft magnetic powder includes: a soft magnetic powder layer of an unoxidized soft magnetic material; a second oxide layer as an oxide with iron or boron residing around the soft magnetic powder layer; and a first oxide layer of an iron oxide residing around the second oxide layer. The first oxide layer and the second oxide layer reside in a region of 20 nm or more and 500 nm or less from a surface of the soft magnetic powder, and are absent in a region of more than 500 nm and 1,600 nm or less from the surface.

Abstract: This disclosure is directed to sintered bodies comprising grains and a grain boundary composition, wherein: (a) the grains comprise a composition substantially represented by a formula G2M14B, where G is Nd, Dy, Pr, Tb, or a combination thereof, and M is Co, Fe, Ni, or a combination thereof, wherein the grains are optionally doped with one or more rare earth elements; and (b) the grain boundary composition is an alloy composition substantially represented by the formula: Nd8.5-12.5Dy35-45Co32-41Cu3-6.5Fe1.5-5, wherein the subscript values are atom percent relative to the total composition of the alloy composition. Corresponding populations of particles are also disclosed.

Abstract: This invention provides a jewelry alloy which improves mechanical properties of AuIn2 while preserving its attractive blue hue. In one embodiment, said mechanical properties comprises fracture toughness and hardness. In one embodiment, said jewelry alloy consist essentially of 43.0 to 49.0 wt % Au; 51.0 to 57.0 wt % In; 0.001 to 1.0 wt % of one or more elements selected from the group consisting of Fe and Ge; and 0.001 to 1.0 wt % of one or more elements selected from the group consisting of Rh, Ir and Ru.

Abstract: A rare earth permanent magnet includes a main phase containing: a rare earth element R of one or more types including Nd; an element L of one or more types selected from a group consisting of Co, Be, Li, Al, and Si; B; and Fe, wherein crystals which form the main phase belong to P42/mnm; some of B atoms occupying a 4f site of the crystals are substituted with atoms of the element L; each distribution of Nd atoms and the atoms of the element L appears along a C-axis direction of the crystals in a plurality of cycles; and the rare earth permanent magnet includes an area where a cycle of the atoms of the element L matches a cycle of the Nd atoms.

Abstract: The present disclosure provides systems and methods for depositing a metal layer adjacent to or on a substrate. Substrates may comprise, for example, one or more of iron, chromium, nickel, silicon, vanadium, titanium, boron, tungsten, aluminum, molybdenum, cobalt, manganese, zirconium, and niobium, oxides thereof, nitrides thereof, sulfides thereof, or any combination thereof. A substrate may be a steel substrate. A metal layer may be deposited via, for example, roll coating, vapor deposition, slurry deposition, or electrochemical deposition.

Abstract: An L10-FeNi magnetic powder has an average particle size of 50 nm to 1 ?m, and an average value of sphericity P of 0.9 or more. The sphericity P is defined as P=Ls/Lr, where Lr is a perimeter of an L10-FeNi magnetic powder particle on an image of a microscope, and Ls is a perimeter of a perfect circle that has a same area as the L10-FeNi magnetic powder particle on the image for which Lr is calculated.

Abstract: A sintered R-T-B based magnet has remanence (Br) of 1.47 T or greater and coercivity (HcJ) of 1900 kA/m or greater and contains Tb at a content of 0.35 mass % or lower.

Abstract: The present invention relates to an RFeB sintered magnet containing: 28% to 33% by mass of a rare-earth element R, 0% to 2.5% by mass of Co (cobalt) (i.e., Co may not be contained), 0.3% to 0.7% by mass of Al (aluminum), 0.9% to 1.2% by mass of B (Boron), and less than 1,500 ppm of O (oxygen), with the balance being Fe, containing an RFeAl phase having an R6Fe14-xAlx structure in a crystal grain boundary, and having a coercivity of 16 kOe or more.

Abstract: An A R-T-B based permanent magnet, wherein R is a rare earth element, T is Fe and Co, and B is boron. R at least includes Dy and Tb. The R-T-B based permanent magnet includes M, and M is one or more elements selected from the group made of Cu, Ga, Al, Mn, Zr, Ti, Cr, Ni, Nb, Ag, Hf, Ta, W, Si, Bi, and Sn. M at least includes Cu. A total content of R is 28.05 mass % to 30.60 mass %, a content of Dy is 1.0 mass % to 6.5 mass %, a content of Cu is 0.04 mass % to 0.50 mass %, a content of Co is 0.5 mass % to 3.0 mass %, and a content of B is 0.85 mass % to 0.95 mass %. A concentration distribution of Tb decreases from an outer side towards an inner side of the R-T-B based permanent magnet.

Abstract: This invention relates to magnetocaloric materials comprising ternary alloys useful for magnetic refrigeration applications. The disclosed ternary alloys are Cerium, Neodymium, and/or Gadolinium based compositions that are fairly inexpensive, and in some cases exhibit only 2nd order magnetic phase transitions near their curie temperature, thus there are no thermal and structural hysteresis losses. This makes these compositions attractive candidates for use in magnetic refrigeration applications. The performance of the disclosed materials is similar or better to many of the known expensive rare-earth based magnetocaloric materials.

Abstract: There is provided a hollow composite magnetic member obtained by partially reforming a hollow member which is formed of a ferromagnetic material containing Cr of 15 mass % or more and 18 mass % or less, in which the reformed portion includes an alloy containing Cr of 8 mass % or more and 18 mass % and Ni of 6.5 mass % or more and 50 mass % or less. Accordingly, a hollow composite magnetic member having a small width of the nonmagnetic portion and a fuel injection valve having the same can be provided.

Abstract: A method for manufacturing a powder magnetic core includes: a step of preparing a soft magnetic powder and an oxide powder and preparing, as a raw material powder, a mixed powder of the soft magnetic powder and the oxide powder, the soft magnetic powder containing composite soft magnetic particles containing pure iron and an Fe-? alloy having an element ? more oxidizable than Fe, the composite soft magnetic particles each having a core-shell structure where a core is made of one of pure iron and the Fe-? alloy and a shell is made of the other, the oxide powder containing oxide particles containing at least one selected from Fe and an element ? that forms an oxide having higher electrical resistance than Fe3O4; a step of compacting the mixed powder into a green compact; and a step o sintering the green compact at 900° C. or more and 1300° C. or less.

Abstract: A ferrite sintered magnet contains a main phase formed of ferrite having a hexagonal magnetoplumbite type crystalline structure; a first subphase containing La, Ca, and Fe, in which an atomic ratio of La is higher than that of the main phase, and the atomic ratio of La is higher than an atomic ratio of Ca; and a second subphase containing La, Ca, Si, B, and Fe, in which an atomic ratio of Ca is higher than an atomic ratio of La, an atomic ratio of B is higher than an atomic ratio of Fe, and the atomic ratio of Fe is lower than that of the main phase. An area ratio of the second subphase on a cross-sectional surface of the ferrite sintered magnet is greater than or equal to 1%.

Abstract: A flux in which solder wettability can be maintained and with which it is possible to suppress the amount of residue after soldering and realize low residue. This flux includes 65-99 wt % of a solvent, and also includes 1-13 wt % of at least one acid selected form a dimer acid that is a reaction product of oleic acid and linoleic acid; a trimer acid that is a reaction product of oleic acid and linoleic acid; a hydrogenated dimer acid obtained by hydrogenating dimer acid that is a reaction product of oleic acid and linoleic acid; and a hydrogenated trimer acid obtained by hydrogenating a trimer acid that is a reaction product of oleic acid and linoleic acid.

Abstract: A permanent magnet includes R and T (R essentially includes Sm one or more of rare earth elements in addition to Sm, and T essentially includes Fe, or Fe and Co, one or more of transition metal elements in addition to Fe, or Fe and Co). A composition ratio of R in the permanent magnet is 20 at % or more and 40 at % or less. A remaining part is substantially only T, or only T and C. T amount is more than 1.5 times of R amount and less than 4.0 times of the R amount. Main phase grains included in the permanent magnet have an Nd5Fe17 type crystal structure. An average crystal grain size of the main phase grains of the permanent magnet is greater than 1 ?m. A number ratio of main phase grains having a crystal grain size of less than 0.4 ?m is less than 20%.

Abstract: The present invention relates to a Ce-containing sintered rare earth permanent magnet with high toughness and high coercivity and a method of preparing the magnet, belonging to the technical field of rare earth permanent magnetic materials. The magnet is prepared by steps of raw material batching, strip casting, hydrogen decrepitation and jet milling, powder orientating and forming, sintering and heat treatment. The materials of the permanent magnet comprise the main phase alloy powders and the Ce added phase alloy powders, wherein the Ce added phase alloy is a magnetic phase or a non-magnetic liquid-phase alloy; and the Ce added phase alloy accounts for 5% to 30% of the total weight of the permanent magnet, and the remainder is the main phase alloy. During the jet milling stage, a certain concentration of oxygen is added into the inert gas, so that the final magnet has an oxygen content of 1500 to 2500 ppm.

Abstract: Provided herein is a soft magnetic alloy powder that can exhibit a high saturation flux density and desirable soft magnetic characteristics. A dust core using the soft magnetic alloy powder is also provided. The soft magnetic alloy powder is an Fe-based nanocrystalline soft magnetic alloy powder of a crystallized Fe-based amorphous soft magnetic alloy powder, and has a DSC curve with a first peak that is 15% or less of a first peak of the Fe-based amorphous soft magnetic alloy in terms of a maximum value.

Abstract: A method is provided for the production of a wound nanocrystalline magnetic core in which a nanocrystalline metal strip made of (Fe1-aMa)100-x-y-z-?-?CuxSiyBzM??X? is pre-wound to form a first coil. An insulating foil is provided that is coated with an adhesive on at least one side. An adhesive is applied to the nanocrystalline metal strip to laminate the insulating foil onto the metal strip and thereby to stabilise the metal strip as it is wound off the coil. The laminated nanocrystalline metal strip and the insulating foil are bifilar wound to form a bifilar, layer-insulated coil.

Abstract: A soft magnetic alloy contains a main component having a composition formula of (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d))MaBbPcCd and auxiliary components including at least Ti, Mn and Al. In the composition formula, X1 is one or more selected from the group consisting of Co and Ni, X2 is one or more selected from the group consisting of Ag, Zn, Sn, As, Sb, Bi and a rare earth element, and M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Mo, W and V. In the composition formula, 0.030?a?0.100, 0.050?b?0.150, 0<c?0.030, 0<d?0.030, ??0, ??0, and 0??+??0.50 are satisfied. In the soft magnetic alloy, a content of Ti is 0.001 to 0.100 wt %, a content of Mn is 0.001 to 0.150 wt %, and a content of Al is 0.001 to 0.100 wt %.

Abstract: Provided is an R-T-B-based magnet material alloy including an R2T14B phase which is a principal phase and R-rich phases which are phases enriched with the R, wherein the principal phase has primary dendrite arms and secondary dendrite arms diverging from the primary dendrite arms, and regions where the secondary dendrite arms have been formed constitute a volume fraction of 2 to 60% of the alloy, whereby excellent coercive force can be ensured in R-T-B-based sintered magnets even when the amount of heavy rare earth elements added to the alloy is reduced. The inter-R-rich phase spacing is preferably at most 3.0 ?m, and the volume fraction of chill crystals is preferably at most 1%. Furthermore, the secondary dendrite arm spacing is preferably 0.5 to 2.0 ?m, and the ellipsoid aspect ratio of R-rich phase is preferably at most 0.5.