Matches 101 - 150 out of 259 < 1 2 3 4 5 6 >
Match Document Document Title
5537826 Erbium-based magnetic refrigerant (regenerator) for passive cryocooler  
A two stage Gifford-McMahon cryocooler having a low temperature stage for reaching approximately 10K, wherein the low temperature stage includes a passive magnetic heat regenerator selected from...
5470400 Rare earth anisotropic magnetic materials for polymer bonded magnets  
This invention relates to a process for producing a non-pyrophoric, corrosion resistant rare earth-containing material capable of being formed into a polymer bonded permanent magnet comprising...
5470401 Method of making bonded or sintered permanent magnets  
An isotropic permanent magnet is made by mixing a thermally responsive, low viscosity binder and atomized rare earth-transition metal (e.g., iron) alloy powder having a carbon-bearing (e.g.,...
5462610 Lanthanide Al-Ni base Ericsson cycle magnetic refrigerants  
A magnetic refrigerant for a magnetic refrigerator using the Ericsson thermodynamic cycle comprises DyAlNi and (Gd 0 .54 Er 0 .46)AlNi alloys having a relatively constant ΔTmc over a wide...
5449416 Cold accumulating material and method of manufacturing the same  
The extremely low temperature cold accumulating material for use in refrigerators, for example, comprises particles containing at least one kind of rare earth element selected from a group...
5447034 Cryogenic refrigerator and regenerative heat exchange material  
A cryogenic refrigerator includes a first refrigerant filled in a final refrigerating force storage chamber on a high temperature side thereof and consisting essentially of a composition expressed...
5435137 Ternary Dy-Er-Al magnetic refrigerants  
A ternary magnetic refrigerant material comprising (Dy 1 -x Er x )Al 2 for a magnetic refrigerator using the Joule-Brayton thermodynamic cycle spanning a temperature range from about 60K to about...
5403407 Permanent magnets made from iron alloys  
A new alloy for permanent magnets which is of the composition (R x Fe y -w Co w M z )L α transition metals M such as, but not limited to Cr, Mo, Ti and V and mixtures thereof. R would be rare...
5362336 Permanent magnet material  
A permanent magnet material having as main components thereof a rare earth element, a transition element (except for rare earth elements and Cu and Ag), and nitrogen and containing as an additive...
5338331 Low-permeability high-strength target material for the formation of thin magnetooptical recording films  
A high-strength target material for forming a thin magnetooptical recording film having a structure comprising: (a) 20-75% of a complex phase in which at least one crystallized iron-group metal is...
5336337 Magnetrostrictive materials and methods of making such materials  
The magnetostriction alloys of the present invention are composed basically of Tb-Dy-iron which is partially substituted by at least one element selected from the group consisting of Y, La, Cs, Pr,...
5314547 Rare earth slab doping of group III-V compounds  
A semiconductor film is provided characterized by having high carrier mobility and carrier density. The semiconductor film is doped with the rare-earth element erbium so as to improve its...
5286307 Process for making Nd-B-Fe type magnets utilizing a hydrogen and oxygen treatment  
A process for preparing a permanent magnet is disclosed. The process comprises the steps of exposing material, in particulate form, and having an overall composition comprising 8 to 30 atomic...
5269854 Regenerative material  
The present invention provides a regenerative material having a peak specific heat at a low temperature. The material is made of a solid solution of at least two different magnetic type metal...
5268140 Thermoplastic coated iron powder components and methods of making same  
A method is provided for producing a high strength iron based component by powder metallurgical techniques but without sintering. A powder composition of iron-based particles coated or admixed with...
5258975 Optical recording medium  
This invention relates to a recording medium having a sufficient difference between the crystallization temperature and the melting point as well as excellent characteristics in writing and...
5223046 Super-magnetostrictive alloy  
A super-magnetostrictive alloy has a high coefficient of magnetostriction and satisfactory toughness. The first type of the super-magnetostrictive alloy has a composition whose atomic ratio is...
5213630 Magnetic materials for magnetic refrigeration  
A magnetic refrigeration composition for magnetic refrigeration including at least three kinds of magnetic substances selected from the group consisting of magnetic substances having the formula...
5186766 Magnetic materials containing rare earth element iron nitrogen and hydrogen  
Magentic materials represented by the formula R 60 Fe (100-α-β-γ) N β H γ(I) or R α Fe (100-α-β-γ-δ) N β H γ M δ (II) wherein R is at least one...
5135584 Permanent magnet powders  
Disclosed are permanent magnet powders consisting of the compositional formula: R x M y Si z Ta w T 100 -x-y-z-w or R x M y Si z Ta w (T+Q) 100 -x-y-z-w' wherein x, y, z and w are, in...
5085716 Hot worked rare earth-iron-carbon magnets  
Anisotropic permanent magnets consisting essentially of RE 2 TM 14 C are prepared by hot working suitable iron-neodymium/praseodymium-carbon containing alloys so as to produce deformed fine...
5062907 Hard magnetic material and magnet manufactured from such hard magnetic material  
A description is given of a hard magnetic material whose composition corresponds to the formula RE 2 Fe 17 C x , RE consisting of at least 70 at. % of Sm. This material has a relatively large...
5041171 Hard magnetic material  
The invention relates to new hard magnetic materials which have an intermetallic compound of tetragonal crystal structure of the ThMn 12 type. The intermetallic compound has the gross formula...
5005757 Bonded segmented cylindrical magnet assembly  
A number of rare earth-cobalt permanent magnet segments are temporarily secured together by means of a tool. Before securement the segment surfaces at each interface are pre-tinned. A solder...
4990307 Method for producing particles for the production of permanent magnets  
Particles for the production of permanent magents are obtained by producing an article having Ca and a rare earth oxide including at least Nd oxide. The article is heated to effect Ca rare earth...
4983231 Coated magnetic powder and a bonded permanent magnet composition containing the same  
There is provided a surface-treated magnetic powder that can form a resin-bonded permanent magnet with large magnetic force and a high maximum energy product, which magnetic properties do not...
4975411 Superconductors and methods of making same  
A ceramic superconductor is made by consolidating a plurality of metals and a chalcogen and applying a magnetic field during the consolidation operation.
4971637 Rare earth permanent magnet  
A rare earth permanent magnet of the formula R(Fe 1 -x-y Co x M y ) z , in which R is rare earth element(s) and/or Y, M is Si, Ti, Mo, B, W, V, Cr, Mn, Al, Nb, Ni, Sn, Ta, Zr, and/or Hf, and x,...
4970124 New magnetic metallic particles using rare-earth elements  
Ferromagnetic metallic particles having incorporated into the surface a rare earth element are employed to make magnetic recording elements. These particles are obtained from non-magnetic particle...
4969961 Sm-Fe-V magnet alloy and method of making same  
A magnetically hard compound having the approximate formula SmFe 10 V 2 formed by rapidly quenching a molten mixture of the precursors either with or without subsequent annealing exhibits an...
4946501 Alloy target for magneto-optical recording  
An alloy target for magneto-optical recording having component and composition comprising 10 to 50 atom % of at least one rare earth element from Sm, Nd, Gd, Tb, Dy, Ho, Tm and Er, the balance...
4929275 Magnetic alloy compositions and permanent magnets  
This invention relates to novel permanent magnet alloy compositions and high energy permanent magnets comprising from about 0.5 to about 27 atomic percent R wherein R is at least one rare earth...
4919858 Process for the production of a bonded magnet  
Production of a bonded magnet from a composition of a cross-linkable organic material and a particulate magnetic material by (1) placing in a mold a shaped composition in which the particles of...
4917724 Method of decalcifying rare earth metals formed by the reduction-diffusion process  
Mixtures of a rare earth and an intermetallic compound comprising the rare earth and a ferromagnetic metal selected from the group consisting of iron and cobalt which are formed by the...
4911882 Process for producing permanent magnets  
The present invention relates to the preparation of permanent magnet materials of the Iron-Boron-Rare Earth type.
4895592 High purity sputtering target material and method for preparing high purity sputtering target materials  
Sputtering targets and a method for preparing them by melting the components of a rare earth-transition metal alloy in an inert atmosphere in the inner section of a crucible assembly having inner...
4891078 Rare earth-containing magnets  
Compositions for the production of rare earth-ferromagnetic-metal permanent magnets comprise mixtures of rear earth-ferromagnetic metal alloy powder and a lesser amount of a powdered second-phase...
4885134 Sputtering target and method of preparing the same  
Highly uniform alloy targets are prepared by melting together predetermined amounts of terbium iron and cobalt with an additional element selected from platinum, chromium, nickel, palladium,...
4865660 Rare-earth element/cobalt type magnet powder for resin magnets  
Magnetic powder of the samarium/praseodymium/cobalt type and of the samarium/praseodymium/neodymium/cobalt type having specific compositions is substantially composed of (1-5) single phase, has...
4849017 Magnetic refrigerant for magnetic refrigeration  
A magnetic refrigerant for magnetic refrigeration which comprises a sintered body containing at least one of rare earth elements selected from the group consisting of lanthanum, cerium,...
4849035 Rare earth, iron carbon permanent magnet alloys and method for producing the same  
A permanent magnet alloy having at least one light rare earth element, iron and carbon. The alloy has a cellular microstructure of at least two solid phases with a Fe 14 R 2 C 1 magnetically...
4836867 Anisotropic rare earth magnet material  
An anisotropic rare earth magnet material is provided by a sputtering technique. The material has structural and magnetic anisotropy. Its composition is represented essentially by the following...
4829277 Isotropic rare earth-iron field magnets for magnetic resonance imaging  
A ring magnet for creating a desired magnetic field within the bore of the ring is formed from a plurality of magnetized, magnetically isotropic magnets comprised of RE 2 TM 14 B 1 alloy. The...
4814053 Sputtering target and method of preparing same  
A sputtering target suitable for use in preparing a magneto-optic recording medium having the composition: [(LR) x (HR) 1 -x ] y (Fe w A 1 -w)φ-y-zM z wherein HR is at least one heavy rare...
4810572 Permanent magnet and process for producing the same  
The permanent magnet which is excellent in moldability, capable of maintaining the dimensional stability and magnetic properties during manufacturing steps, and having good dimensional stability at...
4710242 Material for temperature sensitive elements  
Ferromagnetic material for temperature sensitive elements or parts has a direction of easy magnetization which varies depending upon temperature. The material has the formula: Nd 1 -u R u (Co 1...
4683012 Magnetic thin film  
A magnetic thin film consisting essentially of Fe, Al and Si and further containing nitrogen has high magnetic permeability and high hardness without lowering the magnetic properties such as...
4675239 Perpendicular magnetization film  
A perpendicular magnetization amorphous thin film of an alloy of samarium, cobalt and bismuth having an easy magnetizing axis perpendicular to a plane of substrate, and the preparation thereof....
4664723 Samarium-cobalt type magnet powder for resin magnet  
This invention is directed to a samarium-cobalt type magnetic powder for use in making a resin magnet, characterized by substantially comprising a SmCo 5 single phase and consisting of, by weight,...
4620872 Composite target material and process for producing the same  
A novel composite target material that is composed of a rare earth metal and a transition metal (iron-group metal) and which is used in the formation of a thin magnetooptical recording film by...
Matches 101 - 150 out of 259 < 1 2 3 4 5 6 >