FR2034119A1 - Prepn of ferrites - Google Patents
Prepn of ferritesInfo
- Publication number
- FR2034119A1 FR2034119A1 FR6902782A FR6902782A FR2034119A1 FR 2034119 A1 FR2034119 A1 FR 2034119A1 FR 6902782 A FR6902782 A FR 6902782A FR 6902782 A FR6902782 A FR 6902782A FR 2034119 A1 FR2034119 A1 FR 2034119A1
- Authority
- FR
- France
- Prior art keywords
- prepn
- ferrites
- autoclaved
- hrs
- ferrite
- 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
- 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
- H01F1/12—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 soft-magnetic materials
- H01F1/34—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 soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/36—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 soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Compounds Of Iron (AREA)
- Soft Magnetic Materials (AREA)
Abstract
An aqueous soln (pH >=8) of at least one divalent metal salt selected from Mn, Fe, Co, Ni, Cu, Zn Mg is mixed with pure Fe(OH)3 in more than the stoichiometric amount and autoclaved at 200-300 degrees for 2-6 hrs to dissolve the Fe(OH)3. Upon cooling, the resultant fine crystals of ferrite are filtered and washed.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6902782A FR2034119A1 (en) | 1969-02-07 | 1969-02-07 | Prepn of ferrites |
BE744215D BE744215A (en) | 1969-02-07 | 1970-01-09 | FERRITE PREPARATION PROCESS |
NL7000901A NL7000901A (en) | 1969-02-07 | 1970-01-22 | |
DE19702003438 DE2003438A1 (en) | 1969-02-07 | 1970-01-27 | Process for the production of ferrites |
JP45010093A JPS496636B1 (en) | 1969-02-07 | 1970-02-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6902782A FR2034119A1 (en) | 1969-02-07 | 1969-02-07 | Prepn of ferrites |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2034119A1 true FR2034119A1 (en) | 1970-12-11 |
FR2034119B1 FR2034119B1 (en) | 1975-07-04 |
Family
ID=9028743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6902782A Granted FR2034119A1 (en) | 1969-02-07 | 1969-02-07 | Prepn of ferrites |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS496636B1 (en) |
BE (1) | BE744215A (en) |
DE (1) | DE2003438A1 (en) |
FR (1) | FR2034119A1 (en) |
NL (1) | NL7000901A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5078893A (en) * | 1973-11-16 | 1975-06-26 | ||
WO1996015078A1 (en) * | 1994-11-15 | 1996-05-23 | Philips Electronics N.V. | Moulding of sintered hexagonal ferrite material |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51112279A (en) * | 1975-03-28 | 1976-10-04 | Hitachi Ltd | Semiconductor device |
DE3143046A1 (en) * | 1981-10-30 | 1983-05-05 | Basf Ag, 6700 Ludwigshafen | Barium ferrite, a process for its preparation, and its use as coloured pigment |
DE3537624A1 (en) * | 1985-10-23 | 1987-04-23 | Bayer Ag | FINE-PART ISOMETRIC HEXAFERRITE PIGMENTS, METHOD FOR THE PRODUCTION AND USE THEREOF |
DE3633130A1 (en) * | 1986-09-30 | 1988-03-31 | Basf Ag | FINE-PARTIC, SPHERICAL, TWO-LAYER SOLID PARTICLES |
EP4310869A1 (en) | 2021-03-19 | 2024-01-24 | Hide Technology, LLC | Layered body of conductor and insulation film, coil, and rotary electric machine |
-
1969
- 1969-02-07 FR FR6902782A patent/FR2034119A1/en active Granted
-
1970
- 1970-01-09 BE BE744215D patent/BE744215A/en unknown
- 1970-01-22 NL NL7000901A patent/NL7000901A/xx unknown
- 1970-01-27 DE DE19702003438 patent/DE2003438A1/en active Pending
- 1970-02-06 JP JP45010093A patent/JPS496636B1/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5078893A (en) * | 1973-11-16 | 1975-06-26 | ||
JPS5635005B2 (en) * | 1973-11-16 | 1981-08-14 | ||
WO1996015078A1 (en) * | 1994-11-15 | 1996-05-23 | Philips Electronics N.V. | Moulding of sintered hexagonal ferrite material |
Also Published As
Publication number | Publication date |
---|---|
JPS496636B1 (en) | 1974-02-15 |
BE744215A (en) | 1970-06-15 |
DE2003438A1 (en) | 1970-09-03 |
FR2034119B1 (en) | 1975-07-04 |
NL7000901A (en) | 1970-08-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |