GB759248A - Improvements in or relating to methods of manufacturing non-metallic magnetic cores having a substantially rectangular hysteresis loop - Google Patents
Improvements in or relating to methods of manufacturing non-metallic magnetic cores having a substantially rectangular hysteresis loopInfo
- Publication number
- GB759248A GB759248A GB37111/54A GB3711154A GB759248A GB 759248 A GB759248 A GB 759248A GB 37111/54 A GB37111/54 A GB 37111/54A GB 3711154 A GB3711154 A GB 3711154A GB 759248 A GB759248 A GB 759248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- substantially rectangular
- relating
- methods
- rectangular hysteresis
- magnetic cores
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000010949 copper Substances 0.000 abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 239000011572 manganese Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 150000002506 iron compounds Chemical class 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229940093474 manganese carbonate Drugs 0.000 abstract 1
- 235000006748 manganese carbonate Nutrition 0.000 abstract 1
- 239000011656 manganese carbonate Substances 0.000 abstract 1
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 abstract 1
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 abstract 1
- 239000000126 substance Substances 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
- C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
Abstract
759,248. Magnetic compositions. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 22, 1954 [Dec. 22, 1953], No. 37111/54. Drawings to Specification. Class 38 (2). A magnetic core is made of a material with a substantially rectangular hysteresis and low value of coercivity, and having the formula Cu x Mn (1-x+y) Fe 2 O 4' where x lies in the range 0.05 and 0.02 and y < 0.7, which material is made by heating a mixture of copper, manganese and iron compounds in air or an atmosphere containing more oxygen than is found in air at 1350-1400 C. Manganese carbonate and copper and ferric oxides are ground in alcohol, preheated at 900 C., cooled and reground in alcohol, moulded and sintered at 1350 C. in oxygen. Figures are given to indicate the rectangularity of the hysteresis loops of several substances having different values of x and y.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL183828 | 1953-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB759248A true GB759248A (en) | 1956-10-17 |
Family
ID=19750639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37111/54A Expired GB759248A (en) | 1953-12-22 | 1954-12-22 | Improvements in or relating to methods of manufacturing non-metallic magnetic cores having a substantially rectangular hysteresis loop |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US2905641A (en) |
| BE (1) | BE534279A (en) |
| CH (1) | CH345393A (en) |
| DE (1) | DE977635C (en) |
| ES (1) | ES219076A1 (en) |
| FR (1) | FR1116334A (en) |
| GB (1) | GB759248A (en) |
| NL (1) | NL82276C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL210710A (en) * | 1956-09-17 | |||
| US2987481A (en) * | 1956-10-15 | 1961-06-06 | Ibm | Manganese-zinc ferrite |
| NL99145C (en) * | 1958-06-03 | |||
| NL257266A (en) * | 1959-11-10 | |||
| NL256989A (en) * | 1959-11-10 | |||
| US3177145A (en) * | 1963-02-04 | 1965-04-06 | Ibm | Manganese copper ferrite composition containing titanium and germanium and method ofpreparation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL61937C (en) * | 1941-10-24 | 1948-11-15 | ||
| CH247856A (en) * | 1943-05-15 | 1947-03-31 | Philips Nv | Magnetic core and process for its manufacture. |
| US2636860A (en) * | 1944-07-06 | 1953-04-28 | Hartford Nat Bank & Trust Co | Magnetic core |
| US2656319A (en) * | 1949-01-03 | 1953-10-20 | Aladdin Ind Inc | Magnetic core composition and method of producing the same |
| IT466564A (en) * | 1950-05-23 | |||
| IT492518A (en) * | 1951-10-30 | |||
| US2715109A (en) * | 1954-06-14 | 1955-08-09 | Steatite Res Corp | Ferromagnetic ceramic materials with hysteresis loops of rectangular shape |
| US2818387A (en) * | 1954-10-28 | 1957-12-31 | Philips Corp | Square loop ferromagnetic material |
-
0
- NL NL82276D patent/NL82276C/xx active
- BE BE534279D patent/BE534279A/xx unknown
-
1954
- 1954-12-18 ES ES0219076A patent/ES219076A1/en not_active Expired
- 1954-12-19 DE DEN9931A patent/DE977635C/en not_active Expired
- 1954-12-20 CH CH345393D patent/CH345393A/en unknown
- 1954-12-20 US US476532A patent/US2905641A/en not_active Expired - Lifetime
- 1954-12-21 FR FR1116334D patent/FR1116334A/en not_active Expired
- 1954-12-22 GB GB37111/54A patent/GB759248A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES219076A1 (en) | 1955-12-16 |
| BE534279A (en) | |
| CH345393A (en) | 1960-03-31 |
| DE977635C (en) | 1967-11-02 |
| FR1116334A (en) | 1956-05-07 |
| NL82276C (en) | |
| US2905641A (en) | 1959-09-22 |
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