FR2476386A1 - Element chauffant pour cathode a chauffage indirect, procede de fabrication d'un tel element et cathode a chauffage indirect comportant un tel element - Google Patents
Element chauffant pour cathode a chauffage indirect, procede de fabrication d'un tel element et cathode a chauffage indirect comportant un tel element Download PDFInfo
- Publication number
- FR2476386A1 FR2476386A1 FR8003410A FR8003410A FR2476386A1 FR 2476386 A1 FR2476386 A1 FR 2476386A1 FR 8003410 A FR8003410 A FR 8003410A FR 8003410 A FR8003410 A FR 8003410A FR 2476386 A1 FR2476386 A1 FR 2476386A1
- Authority
- FR
- France
- Prior art keywords
- alumina
- mixture
- filament
- cathode
- cylinder
- 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
- 238000010438 heat treatment Methods 0.000 title abstract description 27
- 238000004519 manufacturing process Methods 0.000 title description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 49
- 239000000203 mixture Substances 0.000 abstract description 45
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 abstract description 16
- 238000004382 potting Methods 0.000 description 18
- 239000000843 powder Substances 0.000 description 13
- 239000011230 binding agent Substances 0.000 description 10
- 230000008018 melting Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 7
- 229910052721 tungsten Inorganic materials 0.000 description 7
- 239000010937 tungsten Substances 0.000 description 7
- 230000000737 periodic effect Effects 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010587 phase diagram Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000001962 electrophoresis Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- DECCZIUVGMLHKQ-UHFFFAOYSA-N rhenium tungsten Chemical compound [W].[Re] DECCZIUVGMLHKQ-UHFFFAOYSA-N 0.000 description 3
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 description 3
- 229910052727 yttrium Inorganic materials 0.000 description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229910052767 actinium Inorganic materials 0.000 description 2
- QQINRWTZWGJFDB-UHFFFAOYSA-N actinium atom Chemical compound [Ac] QQINRWTZWGJFDB-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- QKYBEKAEVQPNIN-UHFFFAOYSA-N barium(2+);oxido(oxo)alumane Chemical compound [Ba+2].[O-][Al]=O.[O-][Al]=O QKYBEKAEVQPNIN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/24—Insulating layer or body located between heater and emissive material
Landscapes
- Solid Thermionic Cathode (AREA)
- Powder Metallurgy (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8003410A FR2476386A1 (fr) | 1980-02-15 | 1980-02-15 | Element chauffant pour cathode a chauffage indirect, procede de fabrication d'un tel element et cathode a chauffage indirect comportant un tel element |
| EP81400096A EP0034512A3 (fr) | 1980-02-15 | 1981-01-23 | Elément chauffant pour cathode à chauffage indirect, procédé de fabrication d'un tel élément, et cathode à chauffage indirect comportant un tel élément |
| US06/232,571 US4427916A (en) | 1980-02-15 | 1981-02-09 | Heating element for indirectly heated cathode and method for the manufacture of such an element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8003410A FR2476386A1 (fr) | 1980-02-15 | 1980-02-15 | Element chauffant pour cathode a chauffage indirect, procede de fabrication d'un tel element et cathode a chauffage indirect comportant un tel element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2476386A1 true FR2476386A1 (fr) | 1981-08-21 |
| FR2476386B1 FR2476386B1 (enExample) | 1982-08-20 |
Family
ID=9238641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8003410A Granted FR2476386A1 (fr) | 1980-02-15 | 1980-02-15 | Element chauffant pour cathode a chauffage indirect, procede de fabrication d'un tel element et cathode a chauffage indirect comportant un tel element |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4427916A (enExample) |
| EP (1) | EP0034512A3 (enExample) |
| FR (1) | FR2476386A1 (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60189447U (ja) * | 1984-05-28 | 1985-12-16 | アップリカ葛西株式会社 | 自動車用子供安全シ−ト |
| JPH0624093B2 (ja) * | 1984-12-26 | 1994-03-30 | 株式会社日立製作所 | 傍熱型陰極用ヒ−タ |
| FR2664427A1 (fr) * | 1990-07-03 | 1992-01-10 | Thomson Tubes Electroniques | Cathode a chauffage indirect a filament integre pour tube a faisceau lineaire. |
| US5065070A (en) * | 1990-12-21 | 1991-11-12 | Hughes Aircraft Company | Sputtered scandate coatings for dispenser cathodes |
| US5208508A (en) * | 1991-09-16 | 1993-05-04 | Raytheon Company | Cathode heater potting assembly |
| FR2681726A1 (fr) * | 1991-09-20 | 1993-03-26 | Thomson Tubes Electroniques | Potting isolant pour cathodes a chauffage indirect. |
| DE50013668D1 (de) | 1999-08-22 | 2006-12-07 | Ip2H Ag | Lichtquelle mit indirekt beheiztem Filament |
| CN112490098B (zh) * | 2020-12-09 | 2023-03-14 | 成都国光电气股份有限公司 | 一种热丝组件用混合填充粉料及其制备方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1315581A (fr) * | 1961-02-24 | 1963-01-18 | Siemens Ag | Procédé pour fabriquer des corps frittés isolants tenant le vide |
| US3400294A (en) * | 1964-12-07 | 1968-09-03 | Gen Electric | Heated cathode and method of manufacture |
| DE1805821A1 (de) * | 1968-10-29 | 1970-06-04 | Telefunken Patent | Verfahren zum Herstellen einer indirekt geheizten thermischen Emissionskathode |
| US3803441A (en) * | 1972-04-28 | 1974-04-09 | Tokyo Shibaura Electric Co | Indirectly heated type cathode devices using foil heater embedded in mixture of heat resistant dielectric and a metal |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1107308B (de) | 1955-07-02 | 1961-05-25 | Philips Patentverwaltung | Verfahren zur Herstellung mechanisch widerstandsfaehiger, hochisolierender Schichten auf Metallkoerpern |
| US2975078A (en) | 1957-10-21 | 1961-03-14 | Cons Electrodynamics Corp | Ceramic coated wire |
| GB1133333A (en) | 1965-01-29 | 1968-11-13 | Wilkinson Sword Ltd | Improvements in and relating to electrically insulating coatings |
| JPS52776B2 (enExample) | 1973-09-12 | 1977-01-10 | ||
| US4181532A (en) | 1975-10-22 | 1980-01-01 | United Kingdom Atomic Energy Authority | Production of colloidal dispersions |
| US4150318A (en) | 1978-04-17 | 1979-04-17 | Gte Sylvania Incorporated | Low mass, indirectly heated, fast warm-up heater-cathode assembly |
| JPS5575967A (en) | 1978-11-28 | 1980-06-07 | Ngk Spark Plug Co | Manufacture of alumina sintered body |
| FR2461341A1 (fr) | 1979-07-12 | 1981-01-30 | Commissariat Energie Atomique | Cable electrique conducteur, insensible aux rayonnements nucleaires |
-
1980
- 1980-02-15 FR FR8003410A patent/FR2476386A1/fr active Granted
-
1981
- 1981-01-23 EP EP81400096A patent/EP0034512A3/fr not_active Withdrawn
- 1981-02-09 US US06/232,571 patent/US4427916A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1315581A (fr) * | 1961-02-24 | 1963-01-18 | Siemens Ag | Procédé pour fabriquer des corps frittés isolants tenant le vide |
| US3400294A (en) * | 1964-12-07 | 1968-09-03 | Gen Electric | Heated cathode and method of manufacture |
| DE1805821A1 (de) * | 1968-10-29 | 1970-06-04 | Telefunken Patent | Verfahren zum Herstellen einer indirekt geheizten thermischen Emissionskathode |
| US3803441A (en) * | 1972-04-28 | 1974-04-09 | Tokyo Shibaura Electric Co | Indirectly heated type cathode devices using foil heater embedded in mixture of heat resistant dielectric and a metal |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2476386B1 (enExample) | 1982-08-20 |
| EP0034512A2 (fr) | 1981-08-26 |
| US4427916A (en) | 1984-01-24 |
| EP0034512A3 (fr) | 1982-05-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |