Patent classifications
H01F1/14716
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET
A non-oriented electrical steel sheet according to one embodiment of the invention has a chemical composition represented by C: 0.0030% or less, Si: 2.00% or less, Al: 1.00% or less, Mn: 0.10% to 2.00%, S: 0.0030% or less, one or more selected from the group consisting of Mg, Ca, Sr, Ba, Nd, Pr, La, Ce, Zn, and Cd: greater than 0.0100% and not greater than 0.0250% in total, a parameter Q represented by Q=[Si]+2[Al][Mn]: 2.00 or less; Sn: 0.00% to 0.40%, Cu: 0.00% to 1.00%, and a remainder: Fe and impurities, and a parameter R represented by R=(I.sub.100+I.sub.310+I.sub.411+I.sub.521)/(I.sub.111+I.sub.211+I.sub.332+I.sub.221) is 0.80 or greater.
NON ORIENTED ELECTRICAL STEEL SHEET, IRON CORE, MANUFACTURING METHOD OF IRON CORE, MOTOR, AND MANUFACTURING METHOD OF MOTOR
A non oriented electrical steel sheet includes, as a chemical composition, by mass %, 1.0% or more and 5.0% or less of Si, wherein a sheet thickness is 0.10 mm or more and 0.35 mm or less, an average grain size is 30 m or more and 200 m or less, an X1 value defined by X1=(2B.sub.50L+B.sub.50C)/(3I.sub.S) is less than 0.845, an E1 value defined by E1=E.sub.L/E.sub.C is 0.930 or more, and an iron loss W.sub.10/1k is 80 W/kg or less.
Synthesis of tetrataenite thin films via rapid thermal annealing
A method for synthesis of high anisotropy L1.sub.0 FeNi (tetrataenite) thin films is provided that combines physical vapor deposition via atomic layer sputtering and rapid thermal annealing with extreme heating and cooling speeds. The methods can induce L1.sub.0-ordering in FeNi thin films. The process uses a base composite film of a support substrate, a seed layer, a multilayer thin film of FeNi with alternating single atomic layers of Fe and Ni that mimics the atomic plane of the final L1.sub.0 FeNi alloy, and a capping layer. The Fe and Ni bilayers are grown on top of a Si substrate with a thermally oxidized SiO.sub.2 seed layer to mechanically strain the sample during rapid thermal annealing.
GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR PRODUCING GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET
Provided are: a grain-oriented electromagnetic steel sheet exhibiting excellent coating film adhesion and excellent magnetic characteristics; and a method for producing this grain-oriented electromagnetic steel sheet. This grain-oriented electromagnetic steel sheet is provided with a ceramic coating film arranged on a steel sheet, and an oxide insulating tension coating film arranged on the ceramic coating film. The ceramic coating film contains a nitride and an oxide; the nitride contains at least one element selected from the group consisting of Cr, Ti, Zr, Mo, Nb, Si, Al, Ta, Hf, W and Y; and the oxide has a corundum crystal structure. The Young's modulus of the ceramic coating film as determined by a nanoindentation method is 230 GPa or more; the average film thickness of the ceramic coating film is from 0.01 m to 0.30 m (inclusive); and the tension of the oxide insulating tension coating film is 10 MPa or more.
MULTI-SHELLED SHIELDED ROOM AND METHOD FOR THE PRODUCTION OF A MULTI-SHELLED SHIELDED ROOM
A multi-shelled shielded room is provided that has an outer shell with a first soft magnetic alloy having an initial permeability .sub.i1 and a maximum permeability .sub.max1 and an inner shell with a second soft magnetic alloy having an initial permeability .sub.i2 and a maximum permeability .sub.max2. The outer shell encases the inner shell and .sub.max1>.sub.max2 and .sub.i2>.sub.i1.
TRANSFORMER CORE FOR A CUT-AND-STACK TYPE TRANSFORMER AND TRANSFORMER INCLUDING SAME
A transformer core includes two stacks, each of first thickness with 1 flat parts, the cutting directions rectilinear and parallel or perpendicular to one another, the stacks facing across a gap, the flat parts made of an austenitic FeNi alloy 30-80% Ni and 10% alloying elements, with a sharp {100} <001> cubic texture, the cutting directions of the fiat parts parallel to the rolling or transverse direction, the flat parts having magnetic losses, for a maximum induction of 1 T, <20 W/kg at 400 Hz, producing apparent magnetostriction for maximum induction values and field directions as follows: 1.2 T<5 ppm, large side of the sample parallel to rolling direction; 1.2 T<5 ppm, large side of the sample parallel to transverse direction in the rolling plane; and 1.2 T<10 ppm, length direction parallel to intermediate direction 45 to rolling and transverse directions.
Electrical steel sheet
An electrical steel sheet includes: a specific chemical composition; a crystal grain diameter of 20 m to 300 m; and a texture satisfying Expression 1, Expression 2, and Expression 3 when the accumulation degree of the (001)[100] orientation is represented as I.sub.Cube and the accumulation degree of the (011)[100] orientation is represented as I.sub.Goss.
I.sub.Goss+I.sub.Cube10.5Expression 1
I.sub.Goss/I.sub.Cube0.50Expression 2
I.sub.Cube2.5Expression 3
PANEL FOR A MAGNETIC SHIELDING CABIN, MAGNETIC SHIELDING CABIN AND METHOD FOR THE PRODUCTION OF A PANEL AND A MAGNETIC SHIELDING CABIN
A panel for a shielding cabin having a base plate made of a non-magnetic material and at least one sheet layer made of a soft magnetic material is provided. The base plate is stuck to at least one sheet layer by a viscoelastic adhesive. The adhesive has a glass transition temperature of 80 C. to 60 C.
MAGNETIC CONDUCTIVE NiFe ALLOYS
Embodiments herein describe techniques for a magnetic conductive device including a substrate, an under layer above the substrate, and a magnetic conductive layer including NiFe alloy formed on the under layer. A method for forming a magnetic conductive device includes forming a support stack including an under layer above a substrate, cleaning the support stack, and performing electrodeposition on the under layer by placing the support stack into a plating bath to form NiFe alloy on the under layer. The NiFe alloy includes Ni in a range of about 74% to about 84%, and Fe in a range of about 26% to about 16%. Other embodiments may be described and/or claimed.
Magnetic inductor stack including magnetic materials having multiple permeabilities
Provided is an inductor structure. In embodiments of the invention, the inductor structure includes a first laminated stack. The first laminated stack includes layers of an insulating material alternating with layers of a first magnetic material. The inductor structure includes a laminated second stack formed on the first laminated stack. The second laminated stack includes layers of the insulating material alternating with layers of a second magnetic material. The second magnetic material has a greater permeability than does the first magnetic material.