DE1558619A1 - Permanent magnet composed of fine particles of a compound M5R - Google Patents

Permanent magnet composed of fine particles of a compound M5R

Info

Publication number
DE1558619A1
DE1558619A1 DE1968N0031971 DEN0031971A DE1558619A1 DE 1558619 A1 DE1558619 A1 DE 1558619A1 DE 1968N0031971 DE1968N0031971 DE 1968N0031971 DE N0031971 A DEN0031971 A DE N0031971A DE 1558619 A1 DE1558619 A1 DE 1558619A1
Authority
DE
Germany
Prior art keywords
permanent magnet
compound
fine particles
particles
values
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
DE1968N0031971
Other languages
German (de)
Other versions
DE1558619B2 (en
Inventor
Velge Wilhelmius Anto Josephus
Buschow Kurt Heinz Juergen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE1558619A1 publication Critical patent/DE1558619A1/en
Publication of DE1558619B2 publication Critical patent/DE1558619B2/en
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/16Magnetic circuit arrangements
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/04Making non-ferrous alloys by powder metallurgy
    • C22C1/0433Nickel- or cobalt-based alloys
    • C22C1/0441Alloys based on intermetallic compounds of the type rare earth - Co, Ni
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C19/00Alloys based on nickel or cobalt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C28/00Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C9/00Alloys based on copper
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets 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
    • H01F1/04Magnets 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
    • H01F1/06Magnets 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 in the form of particles, e.g. powder

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Hard Magnetic Materials (AREA)
  • Detergent Compositions (AREA)
  • Drying Of Solid Materials (AREA)

Description

DipL-lng. HORST AUERDipL-lng. HORST AUER

P -: !·■·:>ρ. Ό. ην/α ItP -:! · ■ ·:> ρ. Ό. ην / α It

Anmelder: N. V. PH1LIPS1 GLOEiLAMPENFABRIEKEN 1558619Applicant: NV PH 1 LIPS 1 GLOEiLAMPENFABRIEKEN 1558619

Akte: PHN- 2207 ■
Anmeldung vomi 17. Januar 1968
File: PHN- 2207 ■
Registration dated January 17, 1968

NoVrPhilipsf G-loeilampenf abrieken, Eindhoven/HollandNoVrPhilips f G-loeilampenf abrieken, Eindhoven / Holland

"Aus feinen Teilchen einer Verbindung McR aufgebauter Dauermagnet""From fine particles of a compound McR built-up permanent magnet "

Die Erfindung bezieht sich auf einen Dauermagneten, aufgebaut aus feinen Teilchen einer Verbindung McR1 mit an sich dauermagnetischen Eigenschaften, in der R ein Element der seltenen Erden oder eine Kombination derselben und in der M Co oder eine Kombination von Co mit einem oder mehreren der Elemente Pe, Ni und Cu bedeutet.The invention relates to a permanent magnet composed of fine particles of a compound McR 1 with inherently permanent magnetic properties, in which R is a rare earth element or a combination thereof and in which M is Co or a combination of Co with one or more of the elements Means Pe, Ni and Cu.

Derartige Dauermagnete sind aus der ausgelegten niederländischen Patentanmeldung Nr. 66 08 335 bekannt· Auch ein Verfahren zur Herstellung dieser Magnete ist aus der erwähnten Veröffentlichung bekannt.Such permanent magnets are known from the laid-out Dutch patent application No. 66 08 335. Also a method for Manufacture of these magnets is known from the mentioned publication.

Die feinen Teilchen, aus denen diese Magnete aufgebaut sind, weisen eine hohe Sättigungsmagnetisierung <^und einen hohen IHÖ-Wert auf. Die Dauermagnete selbst weisen ein hohes (BH)maI-Produkt und ebenfalls eine hohejHc auf·The fine particles from which these magnets are built have a high saturation magnetization and a high I H Ö value. The permanent magnets themselves have a high (BH) maI product and also a high jH c

Wenn für R eine Kombination einiger seltenen Erden A, B usw. gewählt wird, stellt es sich heraus, daß die jHQ- und ^ - Werte der betreffenden MnR-Teilchen aus den Beiträgen von AM^, BM^ usw. im Ganzen vorhergesagt werden können, dies mit Rücksicht auf die Mengen A, B usw., die relativ in der Verbindung vorhanden sind. So wird beispielsweise von kleinen Teilchen einer Verbindung A-J^xBxMc mit 0<x<1 ^aIs Punktion von χ linear verlaufen·If a combination of some rare earths A, B, etc. is chosen for R, it turns out that the jH Q and ^ values of the MnR particles in question are predicted from the contributions of AM ^, BM ^, etc. as a whole can, with regard to the quantities A, B, etc., which are relatively present in the compound. For example, small particles of a compound AJ ^ x B x Mc with 0 <x <1 ^ as a puncture of χ will run linearly

PHN- 2207 ' - -y.: ' . 2 -PHN-2207 '- -y .:' . 2 -

Bu/8 ,Bu / 8,

009819/0720009819/0720

Versuche haben bewiesen, daß von einer Verbindung Aibei einer bestimmten Wahl von A, B und M die magnetischen Eigenschaften der Teilchen überraschenderweise nicht linear zu χ verlaufen. Auch die (BH)max~ und,Hc-Werte der Dauermagnete, die aus derartigen !Teilchen aufgebaut sind, weisen in Abhängigkeit von ζ einen ungewöhnlichen Verlauf auf«Experiments have shown that for a compound Ai with a certain choice of A, B and M the magnetic properties of the particles are surprisingly non-linear. The ( BH ) max ~ and, H c values of the permanent magnets, which are built up from such! Particles, also show an unusual course as a function of ζ «

Der erfindungsgemäße Dauermagnet ist nun dadurch gekennzeichnet, daß für M und R Co bzw· La^xCex substituiert wird mit 0<x <1. The permanent magnet according to the invention is now characterized in that for M and R Co or · La ^ x Ce x is substituted with 0 <x <1.

Die Kurven 1 und 2 zeigen, wie die ^ - und γΗ -Werte der kleinen
Teilchen dieser Verbindung in Abhängigkeit von χ verlaufen. Statt des erwarteten linearen Zusammenhangs weist THn ein Maximum auf. Auch die ο-Werte weisen einen unerwarteten Verlauf als Punktion
von χ auf j für O ^x <.0,4 bleibt nahezu konstant, um für x>0,4 bis zu dem zu der Verbindung CeCo,- gehörenden & abzunehmen,
Curves 1 and 2 show how the ^ and γΗ values of the small
Particles of this connection run depending on χ. Instead of the expected linear relationship, T H n has a maximum. The ο-values also show an unexpected course as a puncture
from χ to j for O ^ x <.0.4, remains almost constant, in order to decrease for x> 0.4 up to the & belonging to the connection CeCo, -,

Bs sei bemerkt, daß die erwähnten -j.Hc-Werte immer die maximalIt should be noted that the -jH c values mentioned are always the maximum

erreichbaren Werte sind. Der an Teilchen einer bestimmtenachievable values. The on particles of a certain

Ia1 _Ce -COc-Verbindung gemessene TH -Wert ist nämlich abhängigIa 1 _Ce -COc connection measured T H value is namely dependent

I —X Xp XCI-X Xp XC

von der Größe und der Deformation der Teilchen, Die in der graphischen Darstellung erwähnten Werte sind immer an den in dieser Hinsicht optimalen willkürlich orientierten Teilchen gemessen.on the size and deformation of the particles that appear in the graphic The values mentioned in the illustration are always measured on the arbitrarily oriented particles that are optimal in this respect.

Die Kurven 3 und 4 zeigen, wie bei einem Dauermagneten aus den
obenerwähnten feinen Teilchen die THrt und das (BH) _e -Produkt in Abhängigkeit von χ verlaufen. Beide Kurven weisen Maxima auf.
The curves 3 and 4 show how a permanent magnet from the
above-mentioned fine particles, the T h rt and the (BH) _ e product vary depending on χ. Both curves have maxima.

Es sei bemerkt, daß die TH -Werte, aus denen die Kurve 3 herirorgeht, in der Vorzugsrichtung der Magnetisierung gemessen worden
sind.
It should be noted that the T H values from which curve 3 is derived were measured in the preferred direction of magnetization
are.

Der erfindungsgemäße Dauermagnet ist nun vorzugsweise dadurch
gekennzeichnet, daß O <x <0,6 ist«
The permanent magnet according to the invention is now preferably thereby
indicated that O <x <0.6 "

- 3 009819/0720 - 3 009819/0720

Wie aus den Kurven 3 und 4 hervorgeht, weist für 0<x<0,6 der Magnet nämlich eine (BH)-max auf, die der von LaCo^ gleich ist oder höher ist als dieser Wert, während ^H0 höher ist als jene an einem LaCO5-Magneten gemessene·As can be seen from the curves 3 and 4, for 0 <x <0.6, the magnetic namely a (BH) - max on that of LaCo ^ or the same is higher than this value, while ^ H is higher than 0 those measured on a LaCO 5 magnet

Die besten Werte von JBL und (BH)-..,,.. werden wie aus dem VerlaufThe best values of JBL and (BH) - .. ,, .. will be like from the course

ic maxic max

der Kurven 3 und 4 hervorgeht, dann erreicht, wenn nach einem weiteren Merkmal der Erfindung 0,2<x<0,4 ist·of curves 3 and 4 is obtained when, according to a further feature of the invention, 0.2 <x <0.4

Ausführungsbeispiele·Embodiments

5Co55 Co 5 Br(G)Br (G) BHc <Oe>B H c < Oe > ZEC (Oe) (B Z E C (Oe) (B. ;H)maI (M.M.); H) maI (MM) LaC OcLaC Oc ,330o5, 33 0o 5 49204920 17001700 23002300 2,652.65 Ia0,5Ce0, Ia 0.5 Ce 0, 46004600 18001800 26002600 2,702.70 ^0,6606O^ 0.66 06 O 49004900 18601860 26002600 3,083.08 CeCo,-CeCo, - 41004100 13001300 16501650 1,601.60

Patentansprüche:Patent claims:

- 4- 4th

009819/0720009819/0720

Claims (2)

PatentansprücheClaims 1. Dauermagnet, aufgebaut aus feinen !Teilchen einer Verbindung HcRf mit an sich dauermagnetischen Eigenschaften, in der R ein Element der seltenen Erden oder eine Kombination derselben und H Oo oder eine Kombination von Co mit einem oder mehreren der Elemente Pe, Ni und Cu bedeutet, dadurch gekennzeichnet} daß für M und R Co bzw· 1β^_χχ mit O < χ < 1 substituiert ist·1. Permanent magnet, made up of fine particles of a compound HcRf with permanent magnetic properties per se, in which R is a rare earth element or a combination thereof and HO or a combination of Co with one or more of the elements Pe, Ni and Cu , characterized} that for M and R Co or 1β ^ _ χχ is substituted with O <χ <1 2. Dauermagnet nach Anspruch 1, dadurch gekennzeichnet, daß O < χ <0,5 ist.2. Permanent magnet according to claim 1, characterized in that O <0.5. 3· Dauermagnet nach Anspruch 2, dadurch gekennzeichnet, daß 0,2 <x <0,4 ist.3 · permanent magnet according to claim 2, characterized in that 0.2 <x <0.4. 009819/0720009819/0720 LeerseiteBlank page
DE1968N0031971 1967-01-21 1968-01-17 PERMANENT MAGNET PRODUCED BY POWDER METALLURGICAL WAYS Granted DE1558619B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6700998A NL6700998A (en) 1967-01-21 1967-01-21

Publications (2)

Publication Number Publication Date
DE1558619A1 true DE1558619A1 (en) 1970-05-06
DE1558619B2 DE1558619B2 (en) 1977-06-30

Family

ID=19799069

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1968N0031971 Granted DE1558619B2 (en) 1967-01-21 1968-01-17 PERMANENT MAGNET PRODUCED BY POWDER METALLURGICAL WAYS

Country Status (11)

Country Link
US (1) US3523836A (en)
AT (1) AT280624B (en)
BE (1) BE709654A (en)
CH (1) CH514222A (en)
DE (1) DE1558619B2 (en)
DK (1) DK117514B (en)
FR (1) FR1553242A (en)
GB (1) GB1195333A (en)
NL (1) NL6700998A (en)
NO (1) NO122139B (en)
SE (1) SE324021B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1604641A (en) * 1967-11-15 1972-01-03
US3839102A (en) * 1967-11-15 1974-10-01 Matsushita Electric Ind Co Ltd Permanent magnet
US3664892A (en) * 1968-01-31 1972-05-23 Gen Electric Permanent magnet material powders having superior magnetic characteristics
NL6906305A (en) * 1969-01-24 1970-10-27
US4063971A (en) * 1969-08-08 1977-12-20 Th. Goldschmidt Ag Method of increasing the coercive force of pulverized rare earth-cobalt alloys
NL6919154A (en) * 1969-12-20 1971-06-22
FR2110755A5 (en) * 1970-10-29 1972-06-02 Sermag
US3755007A (en) * 1971-04-01 1973-08-28 Gen Electric Stabilized permanent magnet comprising a sintered and quenched body of compacted cobalt-rare earth particles
US4378258A (en) * 1972-03-16 1983-03-29 The United States Of America As Represented By The Secretary Of The Navy Conversion between magnetic energy and mechanical energy
FR2182635B1 (en) * 1972-05-02 1978-03-03 Sermag
US4075042A (en) * 1973-11-16 1978-02-21 Raytheon Company Samarium-cobalt magnet with grain growth inhibited SmCo5 crystals
DE2632126C2 (en) * 1976-07-16 1978-05-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Polarized miniature relay
US4174966A (en) * 1978-12-15 1979-11-20 The United States Of America As Represented By The Secretary Of The Interior High coercive force rare earth metal-cobalt magnets containing copper and magnesium
US4537850A (en) * 1983-08-30 1985-08-27 Wilfred Smeiman Process and apparatus for rejuvenating electrostatic copy machine toner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813789A (en) * 1952-04-08 1957-11-19 Glaser Louis Permanent magnet alloys
US3102002A (en) * 1960-03-25 1963-08-27 Univ Pittsburgh Ferromagnetic materials prepared from lanthanons and transition metals
US3326637A (en) * 1963-12-27 1967-06-20 Ibm Ferromagnetic intermetallic compounds and method of preparation
US3342591A (en) * 1964-08-31 1967-09-19 Ibm Ferromagnetic compounds and method of preparation
US3421889A (en) * 1966-01-13 1969-01-14 Us Air Force Magnetic rare earth-cobalt alloys
US3424578A (en) * 1967-06-05 1969-01-28 Us Air Force Method of producing permanent magnets of rare earth metals containing co,or mixtures of co,fe and mn

Also Published As

Publication number Publication date
NO122139B (en) 1971-05-24
SE324021B (en) 1970-05-19
DK117514B (en) 1970-05-04
BE709654A (en) 1968-07-19
NL6700998A (en) 1968-07-22
FR1553242A (en) 1969-01-10
GB1195333A (en) 1970-06-17
DE1558619B2 (en) 1977-06-30
US3523836A (en) 1970-08-11
CH514222A (en) 1971-10-15
AT280624B (en) 1970-04-27

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee