DE1558619A1 - Permanent magnet composed of fine particles of a compound M5R - Google Patents
Permanent magnet composed of fine particles of a compound M5RInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
- C22C1/0441—Alloys based on intermetallic compounds of the type rare earth - Co, Ni
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- 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
- H01F1/06—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 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
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 1968File: 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
Patentansprüche:Patent claims:
- 4- 4th
009819/0720009819/0720
Claims (2)
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)
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)
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 |
-
1967
- 1967-01-21 NL NL6700998A patent/NL6700998A/xx unknown
-
1968
- 1968-01-17 DE DE1968N0031971 patent/DE1558619B2/en active Granted
- 1968-01-18 DK DK19368AA patent/DK117514B/en unknown
- 1968-01-18 GB GB2712/68A patent/GB1195333A/en not_active Expired
- 1968-01-18 AT AT52568A patent/AT280624B/en not_active IP Right Cessation
- 1968-01-18 NO NO68212A patent/NO122139B/no unknown
- 1968-01-18 SE SE675/68A patent/SE324021B/xx unknown
- 1968-01-18 CH CH75468A patent/CH514222A/en not_active IP Right Cessation
- 1968-01-19 FR FR1553242D patent/FR1553242A/fr not_active Expired
- 1968-01-19 US US699232A patent/US3523836A/en not_active Expired - Lifetime
- 1968-01-19 BE BE709654D patent/BE709654A/xx unknown
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 |