BE446915A - - Google Patents
Info
- Publication number
- BE446915A BE446915A BE446915DA BE446915A BE 446915 A BE446915 A BE 446915A BE 446915D A BE446915D A BE 446915DA BE 446915 A BE446915 A BE 446915A
- Authority
- BE
- Belgium
- Prior art keywords
- temperature
- phase
- feo
- resistance
- al2o3
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 229910052596 spinel Inorganic materials 0.000 claims description 7
- 239000011029 spinel Substances 0.000 claims description 7
- 239000012298 atmosphere Substances 0.000 claims description 6
- 238000010411 cooking Methods 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 20
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 15
- 239000000395 magnesium oxide Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- YPFNIPKMNMDDDB-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OCCN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O YPFNIPKMNMDDDB-UHFFFAOYSA-K 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000012256 powdered iron Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 1
- 229910003452 thorium oxide Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
- H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances
- H01C7/043—Oxides or oxidic compounds
- H01C7/046—Iron oxides or ferrites
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Compositions Of Oxide Ceramics (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE446915A true BE446915A (forum.php) |
Family
ID=102892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE446915D BE446915A (forum.php) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE446915A (forum.php) |
-
0
- BE BE446915D patent/BE446915A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0403387B1 (fr) | Produits réfractaires fondus et coulés à forte teneur en zircone | |
| FR2517333A1 (fr) | Procede pour appliquer sur un substrat metallique un revetement de protection et article metallique revetu | |
| BE446915A (forum.php) | ||
| EP0059864A1 (fr) | Procédé d'élaboration d'alliages métalliques amorphes à base de fer, de phosphore, de carbone et de chrome | |
| FR2680505A1 (fr) | Procede de fabrication d'un corps moule en graphite. | |
| FR2790751A1 (fr) | Membrane en alliage amorphe de ni pour la separation/ dissociation d'hydrogene, procede de preparation et procede d'activation de celle-ci | |
| FR2483120A1 (forum.php) | ||
| US6395206B1 (en) | Method of removing an organic binder from a green ceramic form | |
| EP0308338A1 (fr) | Procédé de préparation de matériaux supraconducteurs et matériaux ainsi obtenus | |
| FR2715397A1 (fr) | Matériau supraconducteur et procédé de préparation de matériaux supraconducteurs. | |
| BE458377A (forum.php) | ||
| EP0243256B1 (fr) | Compositions pour thermistances à coefficient de température négatif | |
| BE838453Q (fr) | Procede et electrode de soudage a l'arc pour acier inoxydable | |
| CH401928A (fr) | Procédé pour la fabrication de Catalyseurs complexes de la famille du platine | |
| CH299433A (fr) | Procédé de formation d'un corps en matière magnétique à perméabilité élevée. | |
| BE677958A (forum.php) | ||
| BE494903A (forum.php) | ||
| CH262395A (fr) | Résistance électrique. | |
| BE452357A (forum.php) | ||
| BE528385A (forum.php) | ||
| CH285854A (fr) | Procédé de décarburation de ferro-chrome riche en carbone. | |
| BE446481A (forum.php) | ||
| BE493722A (forum.php) | ||
| BE653629A (forum.php) | ||
| BE463204A (forum.php) |