NL154354B - PREPARATION MATERIAL FOR THE MANUFACTURE OF A PERMANENT MAGNET, PROCEDURE FOR MANUFACTURE OF THIS PREPARATION, AND PERMANENT MAGNET CONSTRUCTED FROM THE PRIMARY MATERIAL. - Google Patents

PREPARATION MATERIAL FOR THE MANUFACTURE OF A PERMANENT MAGNET, PROCEDURE FOR MANUFACTURE OF THIS PREPARATION, AND PERMANENT MAGNET CONSTRUCTED FROM THE PRIMARY MATERIAL.

Info

Publication number
NL154354B
NL154354B NL676717442A NL6717442A NL154354B NL 154354 B NL154354 B NL 154354B NL 676717442 A NL676717442 A NL 676717442A NL 6717442 A NL6717442 A NL 6717442A NL 154354 B NL154354 B NL 154354B
Authority
NL
Netherlands
Prior art keywords
particles
coated
manufacture
permanent magnet
preparation
Prior art date
Application number
NL676717442A
Other languages
Dutch (nl)
Other versions
NL6717442A (en
Inventor
Kurt Heinz Juergen Buschow
Pieter Aart Ir Nastepad
Wilhelmus Antonius Johan Velge
Johannes Hendrikus Nicol Vucht
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL676717442A priority Critical patent/NL154354B/en
Priority to US778981A priority patent/US3591428A/en
Priority to DE1812011A priority patent/DE1812011C3/en
Priority to IL31291A priority patent/IL31291A0/en
Priority to AT1228868A priority patent/AT285189B/en
Priority to CH1887668A priority patent/CH531780A/en
Priority to DK620268AA priority patent/DK120300B/en
Priority to GB60378/68A priority patent/GB1243378A/en
Priority to BE725751D priority patent/BE725751A/xx
Priority to FR1596186D priority patent/FR1596186A/fr
Priority to CA038343A priority patent/CA924197A/en
Publication of NL6717442A publication Critical patent/NL6717442A/
Publication of NL154354B publication Critical patent/NL154354B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18—Pretreatment of the material to be coated
    • C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
    • C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
    • C23C18/1827—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment only one step pretreatment
    • C23C18/1834—Use of organic or inorganic compounds other than metals, e.g. activation, sensitisation with polymers
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1635—Composition of the substrate
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
    • C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites
    • 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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/04—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 hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/0551—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0552—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 in the form of particles, e.g. rapid quenched powders or ribbon flakes with a protective layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y10T428/12097—Nonparticulate component encloses particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Thin Magnetic Films (AREA)
  • Physical Vapour Deposition (AREA)
  • Powder Metallurgy (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

1,243,378. Magnetic materials. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 Dec., 1968 [21 Dec., 1967], No. 60378/68. Heading H1H. [Also in Division C7] Magnetic material consists of magnetic particles (diameter <30Á) coated with metal. The magnetic particles consist of an alloy of the system M-R within the region of homogeneity which includes M-R and in which all alloys have the same hexagonal crystal structure as M 5 R where M is Co, or Co and one or more of Fe, Ni, Cu, and R is one or more of Y, Th or rare earth elements (see Specification 1,187,853). When M 5 R is Co 5 Sm, the metal coating may be NiŒP or B; CoŒP or B, SnŒZn or Cd; or Cu. The coated particles may be made by melting, casting and pulverizing the core materials and forming the metallic layer by sputtering, or by electroless or electrolytic deposition. In examples, SmCo 5 particles are etched in an ultrasonically vibrated vessel containing INH 2 SO 4 at 20-50‹ C. for 60 seconds before being electrolessly coated with Ni-P, Co-P, or Ni-Co-P and electrolytically coated with Cu. In further examples, SmCo 4 . 9 is coated with Cu or Ag by cathode sputtering, and Ni-P coatings are applied to particles of YCo 5 , GdCo 5 , PrCo 5 , LaCo 5 and Mischmetall Co 5 . The IHc of the coated particles ranges from 1700 Oe. to 26,000 Oe. Permanent magnets made from the particles are anisotropic.
NL676717442A 1967-12-21 1967-12-21 PREPARATION MATERIAL FOR THE MANUFACTURE OF A PERMANENT MAGNET, PROCEDURE FOR MANUFACTURE OF THIS PREPARATION, AND PERMANENT MAGNET CONSTRUCTED FROM THE PRIMARY MATERIAL. NL154354B (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
NL676717442A NL154354B (en) 1967-12-21 1967-12-21 PREPARATION MATERIAL FOR THE MANUFACTURE OF A PERMANENT MAGNET, PROCEDURE FOR MANUFACTURE OF THIS PREPARATION, AND PERMANENT MAGNET CONSTRUCTED FROM THE PRIMARY MATERIAL.
US778981A US3591428A (en) 1967-12-21 1968-11-26 Basic substance for the manufacture of a permanent magnet
DE1812011A DE1812011C3 (en) 1967-12-21 1968-11-30 Starting material for the production of a permanent magnet from powder of a compound of the type Co5 R and process for the production of the powder
IL31291A IL31291A0 (en) 1967-12-21 1968-12-18 Basic substance for the manufacture of a permanent magnet
AT1228868A AT285189B (en) 1967-12-21 1968-12-18 Material for permanent magnets and process for the production of such a material
CH1887668A CH531780A (en) 1967-12-21 1968-12-18 Starting material for the production of a permanent magnet
DK620268AA DK120300B (en) 1967-12-21 1968-12-18 Permanent magnet and particulate material for use in its manufacture.
GB60378/68A GB1243378A (en) 1967-12-21 1968-12-19 Improvements relating to magnetic materials
BE725751D BE725751A (en) 1967-12-21 1968-12-19
FR1596186D FR1596186A (en) 1967-12-21 1968-12-19
CA038343A CA924197A (en) 1967-12-21 1968-12-20 Basic substance for the manufacture of a permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL676717442A NL154354B (en) 1967-12-21 1967-12-21 PREPARATION MATERIAL FOR THE MANUFACTURE OF A PERMANENT MAGNET, PROCEDURE FOR MANUFACTURE OF THIS PREPARATION, AND PERMANENT MAGNET CONSTRUCTED FROM THE PRIMARY MATERIAL.

Publications (2)

Publication Number Publication Date
NL6717442A NL6717442A (en) 1969-06-24
NL154354B true NL154354B (en) 1977-08-15

Family

ID=19802049

Family Applications (1)

Application Number Title Priority Date Filing Date
NL676717442A NL154354B (en) 1967-12-21 1967-12-21 PREPARATION MATERIAL FOR THE MANUFACTURE OF A PERMANENT MAGNET, PROCEDURE FOR MANUFACTURE OF THIS PREPARATION, AND PERMANENT MAGNET CONSTRUCTED FROM THE PRIMARY MATERIAL.

Country Status (11)

Country Link
US (1) US3591428A (en)
AT (1) AT285189B (en)
BE (1) BE725751A (en)
CA (1) CA924197A (en)
CH (1) CH531780A (en)
DE (1) DE1812011C3 (en)
DK (1) DK120300B (en)
FR (1) FR1596186A (en)
GB (1) GB1243378A (en)
IL (1) IL31291A0 (en)
NL (1) NL154354B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2065635A1 (en) * 1969-07-08 1971-08-06 Gen Electric Permanent magnetic powder of cobalt rare - earth metal compound
DE1936508C3 (en) * 1969-07-18 1983-12-08 General Electric Co., New York, N.Y. Process for stabilizing the coercive force of powder for permanent magnets
US4063971A (en) * 1969-08-08 1977-12-20 Th. Goldschmidt Ag Method of increasing the coercive force of pulverized rare earth-cobalt alloys
US4115159A (en) * 1969-08-08 1978-09-19 Th. Goldschmidt Ag Method of increasing the coercive force of pulverized rare earth-cobalt alloys
US3770396A (en) * 1970-07-29 1973-11-06 Olin Corp Composite metal article
US3892600A (en) * 1973-06-22 1975-07-01 Gen Electric Annealed coated air-stable cobalt-rare earth alloy particles
US3856582A (en) * 1973-06-22 1974-12-24 Gen Electric Fabrication of matrix bonded transition metal-rare earth alloy magnets
US3892601A (en) * 1973-06-22 1975-07-01 Gen Electric Coated air-stable cobalt-rare earth alloy particles and method
US3856581A (en) * 1973-06-22 1974-12-24 Gen Electric Annealing air-stable magnetic materials having superior magnetic characteristics and method
US3892599A (en) * 1973-06-22 1975-07-01 Gen Electric Air-stable compact of cobalt-rare earth alloy particles and method
US3856580A (en) * 1973-06-22 1974-12-24 Gen Electric Air-stable magnetic materials and method
US4122922A (en) * 1977-08-17 1978-10-31 Max Baermann Infinitely variable wear-free eddy current and/or hysteresis brake, preferably for track-bound vehicles
JPS5832767B2 (en) * 1980-01-24 1983-07-15 ヤマハ株式会社 Manufacturing method for hard magnetic materials
US4942098A (en) * 1987-03-26 1990-07-17 Sumitomo Special Metals, Co., Ltd. Corrosion resistant permanent magnet
GB8707905D0 (en) * 1987-04-02 1987-05-07 Univ Birmingham Magnets

Also Published As

Publication number Publication date
BE725751A (en) 1969-06-19
CA924197A (en) 1973-04-10
AT285189B (en) 1970-10-12
DK120300B (en) 1971-05-10
GB1243378A (en) 1971-08-18
IL31291A0 (en) 1969-02-27
FR1596186A (en) 1970-06-15
DE1812011B2 (en) 1977-09-15
DE1812011A1 (en) 1969-08-07
CH531780A (en) 1972-12-15
DE1812011C3 (en) 1978-06-01
NL6717442A (en) 1969-06-24
US3591428A (en) 1971-07-06

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Legal Events

Date Code Title Description
VJC Lapsed due to non-payment of the due maintenance fee for the patent or patent application
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: PHILIPS