Nanotechnology for magnetic components

• US 6,602,543 B2
• Filed: 05/17/2002
• Issued: 08/05/2003
• Est. Priority Date: 11/06/1998
• Status: Expired due to Term

• Current Assignee: PPG Industries Ohio Incorporated (Nouryon BV)
• Original Assignee: NanoProducts Corporation (Nouryon BV)
• Inventors: Yadav, Tapesh, Au, Ming, Miremadi, Bijan, Freim, John, Avniel, Yuval, Dirstine, Roger, Alexander, John, Franke, Evan
• Primary Examiner(s): Le, H. Thi
• Application Number:
  US10/147,835
• Publication Number:
  US 20020160190A1
• Time in Patent Office: 445 Days
• Field of Search: 757/51, 757/65, 296/021, 427/126.1, 427/132, 427/190, 427/126.6
• US Class Current: 427/126.1
• CPC Class Codes: A61L 27/06 Titanium or titanium alloys
• CPC Class Codes: B01J 12/005 carried out at high temperatures, e.g. by pyrolysis
• CPC Class Codes: B01J 12/02 for obtaining at least one reaction product which, at normal temperature, is in the solid state
• CPC Class Codes: B01J 19/0046 Sequential or parallel reactions, e.g. for the synthesis of polypeptides or polynucleotides; Apparatus and devices for combinatorial chemistry or for making molecular arrays synthesis methods per se C40B50/00
• CPC Class Codes: B01J 19/24 Stationary reactors without moving elements inside B01J19/08, B01J19/26 take precedence; with stationary particles B01J8/02
• CPC Class Codes: B01J 2219/00094 Jackets
• CPC Class Codes: B01J 2219/00135 Electric resistance heaters
• CPC Class Codes: B01J 2219/00155 using insulating materials or refractories
• CPC Class Codes: B01J 2219/00177 controlling the pH
• CPC Class Codes: B01J 2219/0018 controlling the conductivity
• CPC Class Codes: B01J 2219/00317 Microwell devices, i.e. having large numbers of wells
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• CPC Class Codes: B01J 2219/0043 for direct application of reagents, e.g. through openings in a shutter
• CPC Class Codes: B01J 2219/00653 the compounds being bound to electrodes embedded in or on the solid supports
• CPC Class Codes: B01J 2219/00707 separated from the reactor apparatus
• CPC Class Codes: B01J 2219/00745 Inorganic compounds
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• CPC Class Codes: B22F 2999/00 : Aspects linked to processes or compositions used in powder metallurgy
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• CPC Class Codes: C04B 2235/80 : Phases present in the sintered or melt-cast ceramic products other than the main phase
• CPC Class Codes: C04B 35/00 : Shaped ceramic products characterised by their composition porous ceramic products C04B38/00; ceramic articles characterised by particular shape, see the relevant classes, e.g. linings for casting ladles, tundishes, cups or the like B22D41/02; ceramic substrates for microelectronic semi-conductors H01L23/15; Ceramics compositions containing free metal bonded to carbides, diamond, oxides, borides, nitrides, silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides other than as macroscopic reinforcing agents C22C; shaping of ceramics B28B; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products chemical preparation of powders of inorganic compounds C01; infiltration of sintered ceramic preforms with molten metal C04B41/51
• CPC Class Codes: C04B 35/01 : based on oxide ceramics
• CPC Class Codes: C04B 35/10 : based on aluminium oxide
• CPC Class Codes: C04B 35/265 : Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
• CPC Class Codes: C04B 35/2666 : Other ferrites containing nickel, copper or cobalt
• CPC Class Codes: C04B 35/453 : based on zinc, tin, or bismuth oxides or solid solutions thereof with other oxides, e.g. zincates, stannates or bismuthates
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• CPC Class Codes: C04B 41/009 : characterised by the material treated
• CPC Class Codes: C04B 41/4539 : as a emulsion, dispersion or suspension
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• CPC Class Codes: C04B 41/89 : for obtaining at least two superposed coatings having different compositions
• CPC Class Codes: C04B 41/90 : at least one coating being a metal
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• CPC Class Codes: H01G 4/33 : Thin- or thick-film capacitors thin- or thick-film circuits H01L27/00; capacitors without a potential-jump or surface barrier specially adapted for integrated circuits, details thereof, multistep manufacturing processes therefor H01L28/40
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Abstract

Nanostructured non-stoichiometric materials are disclosed. Novel magnetic materials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel magnetic devices and products.

Claims

1. A method of preparing a device comprising:

providing a metal-containing substance;

converting the metal-containing substance into a non-stoichiometric non-equilibrium crystalline nanomaterial; and

incorporating the nanomaterial into a device by a process selected from the group consisting of;

molding, stamping, sputtering and pressing.

2. The method of claim 1 wherein the nanomaterial comprises ferrite.

3. The method of claim 1 wherein the nanomaterial has a domain size less than 500 nm.

4. The method of claim 1 wherein the nanomaterial has a domain size less than 100 nm.

5. The method of claim 1 wherein the nanomaterial has a composition that comprises at least one element selected from the group consisting of:

barium, calcium, strontium, iron, cobalt, nickel, rare earth, yttrium, titanium, zirconium, tungsten, tantalum, niobium, molybdenum, zinc, copper, tin, indium, silicon, antimony and aluminum.

6. The method of claim 1 wherein the device comprises a magnetic device.