DE714820C - Material for permanent magnets - Google Patents
Material for permanent magnetsInfo
- Publication number
- DE714820C DE714820C DEK138470D DEK0138470D DE714820C DE 714820 C DE714820 C DE 714820C DE K138470 D DEK138470 D DE K138470D DE K0138470 D DEK0138470 D DE K0138470D DE 714820 C DE714820 C DE 714820C
- Authority
- DE
- Germany
- Prior art keywords
- platinum
- metals
- palladium
- cobalt
- alloy
- 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.)
- Expired
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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/04—Alloys based on a platinum group metal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Soft Magnetic Materials (AREA)
Description
Werkstoff für Dauermagnete Zusatz zum Patent 710 122 Den Gegenstand des Hauptpatents bildet die Verwendung seiner aus Eisen und Palladium bestehenden ferromagnetischen Legierung, deren Gehalte an Eisen und Palladium zueinander ungefähr im Verhältnis ihrer Atomgewichte stehen, und bei der durch Abkühlen von hoher Temperatur und nachfolgendes Anlassen bei niedrigerer Temperatur oder durch langsame Abkühlung von hoher Temperatur eine überstrukturumwandlung herbeigeführt worden ist zur Herstellung von Dauermagneten. Nach dem Hauptpatent kann ferner das Palladium teilweise durch Platin ersetzt werden.Material for permanent magnets Addition to patent 710 122 The subject of the main patent is the use of its iron and palladium ferromagnetic alloy, the iron and palladium contents of which are approximate to each other are in proportion to their atomic weights, and by cooling from high temperature and subsequent tempering at a lower temperature or by slow cooling a superstructure transformation has been brought about by high temperature for production of permanent magnets. According to the main patent, the palladium can also partially through Platinum to be replaced.
Es hat sich gezeigt, daß in den Legierungen nach dem Hauptpatent das Eisen durch eins der Metalle Kobalt, Nickel, Chromoder Mangan und das Platin bzw. Palladium durch ein anderes Metall der Platingruppe, nämlich Ruthenium, Rhodium, Osmium oder Iridium, ersetzt werden kann. Dieser Ersatz kann auch in den Eisen-Platin-Legierungen durchgeführt werden, die entstehen, wenn man in den Eisen-Palladium-Legierungen nach dem Hauptpatent das Palladium vollständig durch Platin ersetzt. Wie die Legierungen nach dem Hauptpatent sollen ;auch die nach der vorliegenden Erfindung verwendeten Legierungen die Legierungselemente in solchen Mengen enthalten, daß die Gehalte ungefähr im Verhältnis ihrer Atomgewichte stehen.It has been shown that in the alloys according to the main patent Iron by one of the metals cobalt, nickel, chromium or manganese and the platinum or Palladium by another metal of the platinum group, namely ruthenium, rhodium, Osmium or Iridium, can be substituted. This substitute can also be used in the iron-platinum alloys that arise when looking at the iron-palladium alloys According to the main patent, the palladium was completely replaced by platinum. Like the alloys according to the main patent, also those used according to the present invention Alloys contain the alloying elements in such amounts that the contents are roughly in proportion to their atomic weights.
Soweit die Legierungen nicht schon im Gußzustand die gewünschten magnetischen Eigenschaften besitzen, werden sie einer Warmbehandlung unterworfen, durch welche in den bei hoher Temperatur aus ungeordneten Mischkristallen bestehenden Legierungen die Bildung einer geordneten Mischphase begünstigt wird. Dias Raumgitter der geordneten Mischkristalle kann das gleiche sein wie das der ungeordneten Mischkristalle, es kann jedoch .auch ein neues Raumgitter @entstehen. Die Wärmehehandl.ung kann in einem einfachen Anlassen mit oder ohne vorhergehende Abkühlung von höheren Tempteraturen oder auch nur in einer langsamen Abkühlung von höherer Temperatur bestehen. Ob überstruktur vorliegt, kann auf röntgenographischem Wege festgestellt werden.Unless the alloys have the desired magnetic properties in the as-cast state Have properties, they are subjected to a heat treatment by which in alloys consisting of disordered mixed crystals at high temperatures the formation of an orderly mixed phase is promoted. Slides the space lattice of the orderly Mixed crystals can be the same as that of the disordered mixed crystals, es However, a new spatial grid can also be created. The heat handling can be done in a simple tempering with or without prior cooling from higher temperatures or only consist in a slow cooling from a higher temperature. Whether superstructure is present, can be determined by radiography.
Als Ausführungsbeispiel der nach der Erfindung verwendeten Legierungen wird eine Legierung mit z3.2 0;`o Kobalt, 730,'o Platin und 3,8 0'o Rhodium genannt, bei der das V erhältnis der Platinmetalle zum Eisenmetall Kobalt in Atomgewichten ausgedrückt gleich i : i ist. Diese Legierung besitzt im Gul.')-zustand eine Koerzitivkraft von etwa 2 Oersted. Durch einstündiges Anlassen bei 65o C steigt die Koerzitivkraft auf etwa i 5co Oersted. Wird die Anlaßbehandlung noch weitere 3 Stunden fortgesetzt, so steigt die Koerzitivkraft auf etwa ¢ooo Oersted bei einer Remanenz von eteva 3ooo Gauß. Der Platingehalt dieser Legierung kann zwischen etwa 65 und 850`o verändert werden. Wird das Platin durch Palladium ersetzt, so beträgt der Palladiumgehalt zi@-ecltmäßig etwa 55 his Soo.`o.As an embodiment of the alloys used according to the invention, an alloy with z3.2 0; `o cobalt, 730, 'o platinum and 3.8 0'o rhodium is mentioned, in which the ratio of platinum metals to iron metal is equal to cobalt expressed in atomic weights i: i is. In the Gul. ') State, this alloy has a coercive force of about 2 oersteds. Tempering at 65o C for one hour increases the coercive force to around 15 oersteds. If the tempering treatment is continued for a further 3 hours, the coercive force increases to about ¢ 000 Oersteds with a remanence of about 3,000 Gauss. The platinum content of this alloy can be changed between about 65 and 850`o. If the platinum is replaced by palladium, the palladium content is approximately 55 to 100%.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK138470D DE714820C (en) | 1935-07-04 | 1935-07-04 | Material for permanent magnets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK138470D DE714820C (en) | 1935-07-04 | 1935-07-04 | Material for permanent magnets |
Publications (1)
Publication Number | Publication Date |
---|---|
DE714820C true DE714820C (en) | 1941-12-08 |
Family
ID=7249131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK138470D Expired DE714820C (en) | 1935-07-04 | 1935-07-04 | Material for permanent magnets |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE714820C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3131059A (en) * | 1961-09-13 | 1964-04-28 | Gen Dynamics Corp | Chromium-titanium base alloys resistant to high temperatures |
US3172759A (en) * | 1965-03-09 | Alloys resistant to high temperatures | ||
DE1295843B (en) * | 1962-03-05 | 1969-05-22 | Du Pont | Ferromagnetic rhodium-iron alloy and use of the same as a functional element |
FR2371755A1 (en) * | 1976-11-18 | 1978-06-16 | Ibm | ALLOYS AT THE PALLADIUM |
EP0036556A1 (en) * | 1980-03-13 | 1981-09-30 | Degussa Aktiengesellschaft | Gold-free alloys for bonding ceramic material by firing |
-
1935
- 1935-07-04 DE DEK138470D patent/DE714820C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3172759A (en) * | 1965-03-09 | Alloys resistant to high temperatures | ||
US3131059A (en) * | 1961-09-13 | 1964-04-28 | Gen Dynamics Corp | Chromium-titanium base alloys resistant to high temperatures |
DE1295843B (en) * | 1962-03-05 | 1969-05-22 | Du Pont | Ferromagnetic rhodium-iron alloy and use of the same as a functional element |
FR2371755A1 (en) * | 1976-11-18 | 1978-06-16 | Ibm | ALLOYS AT THE PALLADIUM |
EP0036556A1 (en) * | 1980-03-13 | 1981-09-30 | Degussa Aktiengesellschaft | Gold-free alloys for bonding ceramic material by firing |
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