GB2021088A - Sintering agents for ferrites - Google Patents
Sintering agents for ferritesInfo
- Publication number
- GB2021088A GB2021088A GB7915403A GB7915403A GB2021088A GB 2021088 A GB2021088 A GB 2021088A GB 7915403 A GB7915403 A GB 7915403A GB 7915403 A GB7915403 A GB 7915403A GB 2021088 A GB2021088 A GB 2021088A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ferrites
- vanadium
- sintering agents
- bismuth
- lithium ferrites
- 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
- 229910000859 α-Fe Inorganic materials 0.000 title abstract 3
- 238000005245 sintering Methods 0.000 title 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052744 lithium Inorganic materials 0.000 abstract 2
- 229910052720 vanadium Inorganic materials 0.000 abstract 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052797 bismuth Inorganic materials 0.000 abstract 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 abstract 1
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(III) oxide Inorganic materials O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000011572 manganese Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 abstract 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract 1
- -1 vanadium peroxide Chemical class 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
- C04B35/2616—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing lithium
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2691—Other ferrites containing alkaline metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Ceramics (AREA)
Abstract
Lithium ferrites are sintered with 0.5-3 mol% of a mixture of phosphorus pentoxide and at least one compound of vanadium or bismuth e.g. vanadium peroxide or bismuth trioxide, to produce memory cores of high density and small grain size having high figures of merit. The lithium ferrites may contain additional ions such as zinc, nickel and manganese.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US90703978A | 1978-05-18 | 1978-05-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2021088A true GB2021088A (en) | 1979-11-28 |
| GB2021088B GB2021088B (en) | 1982-07-07 |
Family
ID=25423422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7915403A Expired GB2021088B (en) | 1978-05-18 | 1979-05-03 | Sintering agents for ferrites |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5515989A (en) |
| BE (1) | BE876320A (en) |
| DE (1) | DE2920192C2 (en) |
| FR (1) | FR2426031A1 (en) |
| GB (1) | GB2021088B (en) |
| IT (1) | IT1116811B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996006810A2 (en) * | 1994-08-29 | 1996-03-07 | Raychem Corporation | High strength porcelain and method therefor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL63204A0 (en) * | 1980-07-16 | 1981-09-13 | Rca Corp | Improved thermally-stable ferrite,improved lithium ferrite and method of manufacture,television receiver ferroresonant high voltage power supply using temperature stable corematerial |
| US4424469A (en) | 1981-04-02 | 1984-01-03 | Rca Corporation | Television receiver ferroresonant high voltage power supply using temperature stable core material |
| FR3121930A1 (en) * | 2021-04-19 | 2022-10-21 | Thales | LOW LOSS LITHIUM FERRITE MATERIAL FOR POWER CONTROLLED MICROWAVE DEVICE |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3300411A (en) * | 1964-02-21 | 1967-01-24 | Ampex | Fluxes for sintering lithium ferrites |
| US3372122A (en) * | 1964-08-13 | 1968-03-05 | Rca Corp | Vanadium-containing lithium ferrites |
| GB1299667A (en) * | 1969-05-06 | 1972-12-13 | Hitachi Ltd | Memory cores having rectangular hysteresis loop characteristics and method of manufacturing the same |
-
1979
- 1979-05-03 GB GB7915403A patent/GB2021088B/en not_active Expired
- 1979-05-14 FR FR7912154A patent/FR2426031A1/en active Granted
- 1979-05-15 IT IT49050/79A patent/IT1116811B/en active
- 1979-05-17 BE BE0/195213A patent/BE876320A/en unknown
- 1979-05-18 DE DE2920192A patent/DE2920192C2/en not_active Expired
- 1979-05-18 JP JP6137679A patent/JPS5515989A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996006810A2 (en) * | 1994-08-29 | 1996-03-07 | Raychem Corporation | High strength porcelain and method therefor |
| WO1996006810A3 (en) * | 1994-08-29 | 1996-04-11 | Raychem Corp | High strength porcelain and method therefor |
| US5565392A (en) * | 1994-08-29 | 1996-10-15 | Raychem Corporation | High strength porcelain and method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2920192A1 (en) | 1979-11-22 |
| IT1116811B (en) | 1986-02-10 |
| JPS5515989A (en) | 1980-02-04 |
| DE2920192C2 (en) | 1982-07-08 |
| IT7949050A0 (en) | 1979-05-15 |
| GB2021088B (en) | 1982-07-07 |
| FR2426031B1 (en) | 1981-12-31 |
| FR2426031A1 (en) | 1979-12-14 |
| BE876320A (en) | 1979-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |