GB1027042A - Improvements in or relating to ferrimagnetic garnet materials - Google Patents
Improvements in or relating to ferrimagnetic garnet materialsInfo
- Publication number
- GB1027042A GB1027042A GB3268761A GB3268761A GB1027042A GB 1027042 A GB1027042 A GB 1027042A GB 3268761 A GB3268761 A GB 3268761A GB 3268761 A GB3268761 A GB 3268761A GB 1027042 A GB1027042 A GB 1027042A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- ferrimagnetic garnet
- sept
- garnet materials
- hours
- 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
-
- 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
-
- 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
- C04B35/2675—Other ferrites containing rare earth metals, e.g. rare earth ferrite garnets
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
1,027,042. Magnetic compositions. PLESSEY CO. Ltd. Sept. 5, 1962 [Sept. 12, 1961], No. 32687/61. Heading H1H. A ferrimagnetic garnet has the formula where X is a divalent metal Mg, Cu, Zn or Ni and Z is tetravalent Si or Ge and where 0À1 # p# 3 and 0 < q # 0À5 Basically the invention lies in substituting a mixture of bivalent and tetravalent ions for trivalent iron ions in a Y/Gd garnet to reduce coercivity. In preparation the oxides are mixed prefired for 12 hours at 1000‹ C. in O 2 , pressed into shape and sintered at 1400‹ C. for 6 hours in O 2 .
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3268761A GB1027042A (en) | 1961-09-12 | 1961-09-12 | Improvements in or relating to ferrimagnetic garnet materials |
FR909230A FR1337982A (en) | 1961-09-12 | 1962-09-12 | Improvements to ferromagnetic materials based on garnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3268761A GB1027042A (en) | 1961-09-12 | 1961-09-12 | Improvements in or relating to ferrimagnetic garnet materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1027042A true GB1027042A (en) | 1966-04-20 |
Family
ID=10342503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3268761A Expired GB1027042A (en) | 1961-09-12 | 1961-09-12 | Improvements in or relating to ferrimagnetic garnet materials |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1337982A (en) |
GB (1) | GB1027042A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2824553A1 (en) * | 2001-05-11 | 2002-11-15 | Thomson Csf | Low magnetic loss ferrite material for hyperfrequency applications has a yttrium and iron based garnet structure conforming to a specified chemical formula |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3447851A (en) * | 1965-11-08 | 1969-06-03 | Bell Telephone Labor Inc | Ferrimagnetic light transmission garnets |
-
1961
- 1961-09-12 GB GB3268761A patent/GB1027042A/en not_active Expired
-
1962
- 1962-09-12 FR FR909230A patent/FR1337982A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2824553A1 (en) * | 2001-05-11 | 2002-11-15 | Thomson Csf | Low magnetic loss ferrite material for hyperfrequency applications has a yttrium and iron based garnet structure conforming to a specified chemical formula |
WO2002092532A1 (en) * | 2001-05-11 | 2002-11-21 | Thales | Ferrite material with low microwave losses and method for making same |
Also Published As
Publication number | Publication date |
---|---|
FR1337982A (en) | 1963-09-20 |
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