GR3017387T3 - Process for modifying magnetic materials and magnetic materials therefrom. - Google Patents

Process for modifying magnetic materials and magnetic materials therefrom.

Info

Publication number
GR3017387T3
GR3017387T3 GR950402505T GR950402505T GR3017387T3 GR 3017387 T3 GR3017387 T3 GR 3017387T3 GR 950402505 T GR950402505 T GR 950402505T GR 950402505 T GR950402505 T GR 950402505T GR 3017387 T3 GR3017387 T3 GR 3017387T3
Authority
GR
Greece
Prior art keywords
magnetic materials
intermetallic compound
modifying
iron
therefrom
Prior art date
Application number
GR950402505T
Other languages
Greek (el)
Inventor
John Michael David Coey
Hong Sun
David Patrick Hurley
Original Assignee
Trinity College Dublin
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
Priority claimed from IE464490A external-priority patent/IE67889B1/en
Application filed by Trinity College Dublin filed Critical Trinity College Dublin
Publication of GR3017387T3 publication Critical patent/GR3017387T3/en

Links

Classifications

    • 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
    • H01F1/058—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IVa elements, e.g. Gd2Fe14C
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
    • C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
    • C23C8/64—Carburising
    • C23C8/66—Carburising of ferrous surfaces
    • 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
    • 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
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B

Abstract

A process is provided for modifying the magnetic properties of an intermetallic compound comprising at least iron, or a combination of iron with at least one transition metal, and at least one rare earth element. The process comprises heating the intermetallic compound in a reaction gas containing at least one element of groups IIIA, IVA or VIA of the Periodic Table in the gaseous phase to interstitially incorporate the element or elements of these groups into the crystal lattice of the intermetallic compound. Novel magnetic materials showing easy uniaxial anisotropy, increased spontaneous magnetization and Curie temperatures are produced by the process.
GR950402505T 1990-12-21 1995-09-13 Process for modifying magnetic materials and magnetic materials therefrom. GR3017387T3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IE464490A IE67889B1 (en) 1990-12-21 1990-12-21 Improved magnetic materials and processes for their production
IE67191 1991-02-28
IE328191 1991-09-18

Publications (1)

Publication Number Publication Date
GR3017387T3 true GR3017387T3 (en) 1995-12-31

Family

ID=27270320

Family Applications (1)

Application Number Title Priority Date Filing Date
GR950402505T GR3017387T3 (en) 1990-12-21 1995-09-13 Process for modifying magnetic materials and magnetic materials therefrom.

Country Status (9)

Country Link
EP (1) EP0493019B1 (en)
JP (1) JPH06145880A (en)
AT (1) ATE124165T1 (en)
CA (1) CA2058283A1 (en)
DE (1) DE69110644T2 (en)
DK (1) DK0493019T3 (en)
ES (1) ES2074237T3 (en)
GR (1) GR3017387T3 (en)
PT (1) PT99903A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4116857A1 (en) * 1991-05-23 1992-11-26 Siemens Ag Magnetic material based on thorium-dodeca:manganese crystal structure - with interstitial nitrogen, carbon or hydrogen atmos. obtd. by heat-treatment in suitable atmos.
GB9217760D0 (en) * 1992-08-21 1992-10-07 Martinex R & D Inc Permanent manget material containing a rare-earth element,iron,nitrogen & carbon
US5403408A (en) * 1992-10-19 1995-04-04 Inland Steel Company Non-uniaxial permanent magnet material
DE4243048A1 (en) * 1992-12-18 1994-06-23 Siemens Ag Manufacturing hard magnetic materials using Sm Fe C system
FR2704087A1 (en) * 1993-04-13 1994-10-21 Rhone Poulenc Chimie Compositions of intermetallic alloys for manufacturing permanent magnets based on rare earths, iron and a metal additive, synthesis method and uses
WO2004068513A1 (en) * 2003-01-28 2004-08-12 Tdk Corporation Hard magnetic composition, permanent magnet powder, method for permanent magnet powder, and bonded magnet
JP5055345B2 (en) * 2009-11-30 2012-10-24 株式会社日立製作所 Ferromagnetic compound magnet
JP5752425B2 (en) * 2011-01-11 2015-07-22 株式会社日立製作所 Rare earth magnets
JP6248689B2 (en) * 2014-02-20 2017-12-20 日立金属株式会社 Ferromagnetic alloy and method for producing the same
WO2017211921A1 (en) 2016-06-10 2017-12-14 Basf Se Magnetocaloric materials comprising manganese, iron, silicon, phosphorus and carbon

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5910562B2 (en) * 1978-11-14 1984-03-09 セイコーエプソン株式会社 intermetallic compound magnet
CN1007847B (en) * 1984-12-24 1990-05-02 住友特殊金属株式会社 Process for producing magnets having improved corrosion resistance
US4753675A (en) * 1986-10-17 1988-06-28 Ovonic Synthetic Materials, Inc. Method of preparing a magnetic material
JP3057448B2 (en) * 1988-05-26 2000-06-26 信越化学工業株式会社 Rare earth permanent magnet
FR2634775B1 (en) * 1988-07-29 1990-09-14 Bull Sa PROCESS FOR OBTAINING A MAGNETIC MATERIAL TRANSPARENT TO LIGHT AND HIGH RESISTIVITY
NL8901168A (en) * 1989-05-10 1990-12-03 Philips Nv HARD-MAGNETIC MATERIAL AND MAGNET MADE FROM THIS HARD-MAGNETIC MATERIAL.

Also Published As

Publication number Publication date
EP0493019A2 (en) 1992-07-01
ATE124165T1 (en) 1995-07-15
PT99903A (en) 1992-12-31
DK0493019T3 (en) 1995-11-20
EP0493019B1 (en) 1995-06-21
DE69110644T2 (en) 1995-12-14
ES2074237T3 (en) 1995-09-01
JPH06145880A (en) 1994-05-27
DE69110644D1 (en) 1995-07-27
CA2058283A1 (en) 1992-06-22
EP0493019A3 (en) 1992-11-19

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