SE468655B - MAGNETOSTRICTIVE COMPOSITION OF POWDER MATERIAL - Google Patents

MAGNETOSTRICTIVE COMPOSITION OF POWDER MATERIAL

Info

Publication number
SE468655B
SE468655B SE9101535A SE9101535A SE468655B SE 468655 B SE468655 B SE 468655B SE 9101535 A SE9101535 A SE 9101535A SE 9101535 A SE9101535 A SE 9101535A SE 468655 B SE468655 B SE 468655B
Authority
SE
Sweden
Prior art keywords
powder
magnetostrictive
material according
pressed
composite
Prior art date
Application number
SE9101535A
Other languages
Swedish (sv)
Other versions
SE9101535D0 (en
SE9101535L (en
Inventor
T Cedell
Original Assignee
Proengco Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Proengco Ab filed Critical Proengco Ab
Priority to SE9101535A priority Critical patent/SE468655B/en
Publication of SE9101535D0 publication Critical patent/SE9101535D0/en
Priority to JP4510169A priority patent/JPH06507676A/en
Priority to PCT/SE1992/000331 priority patent/WO1992020829A1/en
Priority to AU18706/92A priority patent/AU1870692A/en
Priority to CA002102501A priority patent/CA2102501A1/en
Priority to EP92917301A priority patent/EP0663961A1/en
Publication of SE9101535L publication Critical patent/SE9101535L/en
Publication of SE468655B publication Critical patent/SE468655B/en
Priority to US08/441,661 priority patent/US5792284A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B29C70/62—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres the filler being oriented during moulding
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/34—Metals, e.g. ferro-silicon
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/36—Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0094—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with organic materials as the main non-metallic constituent, e.g. resin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
    • H01F1/0306—Metals or alloys, e.g. LAVES phase alloys of the MgCu2-type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • H01F1/26—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N35/00—Magnetostrictive devices
    • H10N35/80—Constructional details
    • H10N35/85—Magnetostrictive active materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/008—Using vibrations during moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2503/00—Use of resin-bonded materials as filler
    • B29K2503/04—Inorganic materials
    • B29K2503/06—Metal powders, metal carbides or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0008—Magnetic or paramagnetic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Structural Engineering (AREA)
  • Composite Materials (AREA)
  • Civil Engineering (AREA)
  • Metallurgy (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Powder Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)

Description

468 655 2 Genom att antingen krossa skrot av magnetostriktiva stavar i syrefri atmosfär eller direkt atomisera fram ett magnetostriktivt pulver, och pressa det tillsammans med ett bindemedel kan samtliga ovan uppräknade problem elirnineras eller minskas. 1. Pulverkompositen enligt patentkrav 1 är så segt att det är möjligt att bearbeta i den med konventionell skärande bearbetning. 2. Pressas t.ex. fórstärkningsfibrer in i staven, orienterade i längsled ökas draghållfastheten. Enligt patentkrav 4. 3. Skrotet från havererade stavar mals nedi en syrefri atmosfär. 4. Genom att pulvrets yta beläggs med en elektrisk isolator, eller genom att bindemedlet isolerar pulverkomen från varandra. Enligt patentkrav 1. . 5. Ett homogent magnetfält orsakat av permanentmagneter erhålles genom att pulver av permanetmagnettyp blandas med det magnetostriktiva pulvret, företrädelsevis i stavens mitt (längd) för att hålla ner läckflödet där. Enligt patentkrav 5. 6. För att undvika en sänkt magnetisering vid stavens ändar kan ytbelagt järnpulver med hög permeabilitet och hög resistivitet pressas in vid stavens ändar. Enligt patentkmv 3. 7. Magnetosuiktiv pulverkomposit kan direkt pressas till den slutliga formen, därigenom undviks dyrt materialspill. 8. Genom pulverteknik kan spolslingor och/eller kylslingor integreras in i det pressade ämnet. 468 655 2 By either crushing scrap of magnetostrictive rods in an oxygen-free atmosphere or directly atomizing a magnetostrictive powder, and pressing it together with an adhesive, all the problems listed above can be eliminated or reduced. The powder composite according to claim 1 is so tough that it is possible to machine it with conventional cutting machining. 2. Presses e.g. reinforcements in into the rod, oriented longitudinally increases the tensile strength. According to claim 4. 3. The scrap from broken rods is ground down in an oxygen-free atmosphere. 4. By coating the surface of the powder with an electrical insulator, or by insulating the powder cumin from each other. According to claim 1.. A homogeneous magnetic field caused by permanent magnets is obtained by mixing permanent magnet type powder with the magnetostrictive powder, preferably in the middle (length) of the rod to hold down the leakage there. According to claim 5. 6. In order to avoid a reduced magnetization at the ends of the rod, surface-coated iron powder with high permeability and high resistivity can be pressed in at the ends of the rod. According to patent kmv 3. 7. Magnetosuictive powder composite can be pressed directly into the final shape, thereby avoiding expensive material waste. 8. Through powder technology, coil loops and / or cooling loops can be integrated into the pressed blank.

Olika varianter av uppfinningen visas på bifogad ritning. Figur 1 visar homogenisering av arbetsmagnetiseringen med hjälp av riktade permanentmagneter i pulver-form. Figur 2 visar hur ett homogent magnetiskt flöde orsakat av exciterinsspole kan erhållas genom att ytbelagt järnpulver pressas in som ändar på staven. Figur 3 visar en möjlighet till ökad hållfasthet mot dragspänningar genom whiskersförstärkning.Various variants of the invention are shown in the accompanying drawing. Figure 1 shows homogenization of the working magnetization by means of directed permanent magnets in powder form. Figure 2 shows how a homogeneous magnetic fate caused by exciter coil can be obtained by pressing in coated iron powder as ends of the rod. Figure 3 shows an opportunity for increased strength against tensile stresses through whisker reinforcement.

Enligt figur 1 innehåller magnetostriktiv komposit förutom magnetosuiktivt pulver, eventuell ytbeläggning och bindemedel (1), permanentmagneter av konventionell typ (2) vid ändarna samt riktade permanentmagneter i pulverform (3) huvudsakligen i rnitten av staven.According to Figure 1, magnetostrictive composite contains, in addition to magnetosuptive powder, any coating and binder (1), permanent magnets of conventional type (2) at the ends and directed permanent magnets in powder form (3) mainly in the sections of the rod.

Claims (6)

.Fu O\ CO Ch Figur 2 visar magnetostriktiv komposit 1, en exciteringsspole för generering av magnetiserande fält 4 samt ytbelagt jämpulver pressat i ändama på staven 5. Figur 3 visar magnetostriktiv komposit (1) med fiberförstärkning (6) i longitudinell led vilket också möjliggör en integrerad fórspänning. PATENTKRAV.Fu O \ CO Ch Figure 2 shows magnetostrictive composite 1, an excitation coil for generating magnetizing field 4 and coated iron powder pressed into the ends of the rod 5. Figure 3 shows magnetostrictive composite (1) with fi ber reinforcement (6) in longitudinal direction which also enables an integrated preload. PATENT REQUIREMENTS 1. Ett kompositmaterial bestående av ett magnetostriktivt material av typ (RE)xT1_x där RE representerar en eller flera sällsynta jordartsmetaller, T representerar Fe ,Ni, Co, Mn, eller en blandning av dessa, samt x som utgör viktsandel 0 bindemedel kännetecknat av att pulverkomen hindras från elektrisk kontakt med varandra av bindemedlet eller genom ett elektriskt isolerande skikt på varje pulverkom.A composite material consisting of a magnetostrictive material of type (RE) xT1_x where RE represents one or fl your rare earth metals, T represents Fe, Ni, Co, Mn, or a mixture of these, and x which constitutes a percentage by weight of 0 binder, characterized in that the powder grains are prevented from electrical contact with each other by the binder or by an electrically insulating layer on each powder grain. 2. Materialet enligt patentkrav 1, kännetecknat av att vid tillverkning pressas pulverkomen tillsammans med bindemedlet vid så höga tryck att komet helt eller delvis plastiskt deforrneras och därigenom får en orientering av de magnetiska domänema vinkelrätt mot pålagt presstryck.The material according to claim 1, characterized in that during manufacture the powder coma is pressed together with the binder at such high pressures that the comet is completely or partially plastically deformed and thereby has an orientation of the magnetic domains perpendicular to applied press pressure. 3. Materialet enligt något av föregående patentlcrav kännetecknat av ett pulver med hög permeabilitet pressas in i ändarna av det magnetostriktiva kompositmaterialet på så sätt att även ändarna görs till elektriska isolatorer och därmed bidrager till ett homogent magnetiskt flöde i den magnetostriktiva delen.The material according to any one of the preceding claims, characterized in that a powder with high permeability is pressed into the ends of the magnetostrictive composite material in such a way that the ends are also made into electrical insulators and thus contribute to a homogeneous magnetic fate in the magnetostrictive part. 4. Materialet enligt något av föregående patentkrav känneteckat av att förstärkningar av fibertyp pressas ihop med den magnetostriktiva kompositen på ett sådant sätt att en mekanisk förstärkning erhålles varvid hållfastlreten mot dragspänningar förbättras, även en intem förspänning kan uppnås på detta sätt.The material according to any one of the preceding claims, characterized in that reinforcements of the ypbert type are compressed with the magnetostrictive composite in such a way that a mechanical reinforcement is obtained whereby the strength against tensile stresses is improved, even an internal prestress can be achieved in this way. 5. Materialet enligt något av föregående patentkrav kännetecknat av att pulver av permanentrnagnetiskt typ läggs in i materialet på sådana ställen och i sådan koncentration att en homogen arbetsmagnetisering uppnås. Perrnanentmagnetkomen riktas med hjälp av ett magnetiserande fält till lämplig riktning. (fl (11 468 655The material according to any one of the preceding claims, characterized in that powders of the permanent magnetic type are introduced into the material at such places and in such a concentration that a homogeneous working magnetization is achieved. The permanent magnet comet is directed by means of a magnetizing field to the appropriate direction. (fl (11 468 655 6. Materialet enligt något av föregående patentkrav kännetecknat av att kylkanaler och/eller spolslingor integreras in i det pressade ämnet. GlThe material according to any one of the preceding claims, characterized in that cooling channels and / or coil loops are integrated into the pressed blank. Gl
SE9101535A 1991-05-22 1991-05-22 MAGNETOSTRICTIVE COMPOSITION OF POWDER MATERIAL SE468655B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9101535A SE468655B (en) 1991-05-22 1991-05-22 MAGNETOSTRICTIVE COMPOSITION OF POWDER MATERIAL
JP4510169A JPH06507676A (en) 1991-05-22 1992-05-19 Magnetostrictive powder composite material and its manufacturing method
PCT/SE1992/000331 WO1992020829A1 (en) 1991-05-22 1992-05-19 Magnetostrictive powder composite and methods for the manufacture thereof
AU18706/92A AU1870692A (en) 1991-05-22 1992-05-19 Magnetostrictive powder composite and methods for the manufacture thereof
CA002102501A CA2102501A1 (en) 1991-05-22 1992-05-19 Magnetostrictive powder composite and methods for the manufacture thereof
EP92917301A EP0663961A1 (en) 1991-05-22 1992-05-19 Magnetostrictive powder composite and methods for the manufacture thereof
US08/441,661 US5792284A (en) 1991-05-22 1995-05-15 Magnetostrictive powder composite and methods for the manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9101535A SE468655B (en) 1991-05-22 1991-05-22 MAGNETOSTRICTIVE COMPOSITION OF POWDER MATERIAL

Publications (3)

Publication Number Publication Date
SE9101535D0 SE9101535D0 (en) 1991-05-22
SE9101535L SE9101535L (en) 1992-11-23
SE468655B true SE468655B (en) 1993-02-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SE9101535A SE468655B (en) 1991-05-22 1991-05-22 MAGNETOSTRICTIVE COMPOSITION OF POWDER MATERIAL

Country Status (6)

Country Link
EP (1) EP0663961A1 (en)
JP (1) JPH06507676A (en)
AU (1) AU1870692A (en)
CA (1) CA2102501A1 (en)
SE (1) SE468655B (en)
WO (1) WO1992020829A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI943032A0 (en) * 1994-06-22 1994-06-22 Valtion Teknillinen Foerfarande Foer framstaellning magnetostrictive material
US5993565A (en) * 1996-07-01 1999-11-30 General Motors Corporation Magnetostrictive composites
AU9570398A (en) * 1997-09-19 1999-04-12 Etrema Products, Inc. Multilayer magnetostrictive transducer and magnetostrictive composite material for same
DE102004034723A1 (en) 2004-07-17 2006-02-09 Carl Freudenberg Kg Magnetostrictive element and its use
JP6056634B2 (en) * 2013-04-25 2017-01-11 富士通株式会社 Power generator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757169A (en) * 1969-10-13 1971-03-16 Western Electric Co FERROMAGNETIC PARTICLES COATED WITH POLYMERIC MATERIAL AND THEIR PREPARATION
US4152178A (en) * 1978-01-24 1979-05-01 The United States Of America As Represented By The United States Department Of Energy Sintered rare earth-iron Laves phase magnetostrictive alloy product and preparation thereof
US4644310A (en) * 1984-03-22 1987-02-17 Allied Corporation Actuator system having magnetomechanical cantilever beam formed of ferromagnetic amorphous material
US4865660A (en) * 1985-02-28 1989-09-12 Sumitomo Metal Mining Company Ltd. Rare-earth element/cobalt type magnet powder for resin magnets
US4845450A (en) * 1986-06-02 1989-07-04 Raytheon Company Self-biased modular magnetostrictive driver and transducer

Also Published As

Publication number Publication date
AU1870692A (en) 1992-12-30
WO1992020829A1 (en) 1992-11-26
JPH06507676A (en) 1994-09-01
EP0663961A1 (en) 1995-07-26
CA2102501A1 (en) 1992-11-23
SE9101535D0 (en) 1991-05-22
SE9101535L (en) 1992-11-23

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