FR1154716A - Perfectionnements aux cathodes thermoélectroniques - Google Patents
Perfectionnements aux cathodes thermoélectroniquesInfo
- Publication number
- FR1154716A FR1154716A FR1154716DA FR1154716A FR 1154716 A FR1154716 A FR 1154716A FR 1154716D A FR1154716D A FR 1154716DA FR 1154716 A FR1154716 A FR 1154716A
- Authority
- FR
- France
- Prior art keywords
- thermoelectronic
- cathodes
- thermoelectronic cathodes
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/325—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with layers graded in composition or in physical properties
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
-
- 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
- H01J1/14—Solid thermionic cathodes characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
- H01J9/047—Cathodes having impregnated bodies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12007—Component of composite having metal continuous phase interengaged with nonmetal continuous phase
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12063—Nonparticulate metal component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12611—Oxide-containing component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12778—Alternative base metals from diverse categories
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US518547A US2996795A (en) | 1955-06-28 | 1955-06-28 | Thermionic cathodes and methods of making |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1154716A true FR1154716A (fr) | 1958-04-16 |
Family
ID=24064419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1154716D Expired FR1154716A (fr) | 1955-06-28 | 1956-06-19 | Perfectionnements aux cathodes thermoélectroniques |
Country Status (3)
Country | Link |
---|---|
US (1) | US2996795A (fr) |
FR (1) | FR1154716A (fr) |
GB (2) | GB836109A (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3159461A (en) * | 1958-10-20 | 1964-12-01 | Bell Telephone Labor Inc | Thermionic cathode |
US3153279A (en) * | 1959-05-29 | 1964-10-20 | Horst Corp Of America V D | Heat resistant solid structure |
US3224071A (en) * | 1960-03-14 | 1965-12-21 | Philips Corp | Brazing method for porous bodies |
US3170772A (en) * | 1961-01-05 | 1965-02-23 | Tokyo Shibaura Electric Co | Oxide coated cathodes for electron tubes |
US3238596A (en) * | 1962-10-23 | 1966-03-08 | Sperry Rand Corp | Method of fabricating a matrix cathode |
US3327158A (en) * | 1963-06-26 | 1967-06-20 | Sylvania Electric Prod | Semi-dispenser cathode with overlying emissive coating |
US3328623A (en) * | 1964-03-02 | 1967-06-27 | Sylvania Electric Prod | Surge arrestor having electrodes containing a low resistivity metal |
US3323924A (en) * | 1964-03-27 | 1967-06-06 | Varian Associates | Low dielectric loss metallizing paint composition having a reduced sintering temperature |
US3340026A (en) * | 1964-12-03 | 1967-09-05 | Bendix Corp | Composite article of bonded refractory metal and a ceramic |
US3545944A (en) * | 1965-03-10 | 1970-12-08 | United Aircraft Corp | Composite metal article having an intermediate bonding layer of nickel aluminide |
US3395993A (en) * | 1966-06-22 | 1968-08-06 | Gen Electric | Titanium activated nickel seal and method of forming it |
US3351486A (en) * | 1966-11-23 | 1967-11-07 | Sylvania Electric Prod | Cathodes |
US3641298A (en) * | 1967-07-19 | 1972-02-08 | Mallory & Co Inc P R | Electrically conductive material and electrical contact |
US3620645A (en) * | 1970-05-01 | 1971-11-16 | Getters Spa | Getter device |
JPS5641636A (en) * | 1979-09-12 | 1981-04-18 | Hitachi Ltd | Directly heated type oxide cathode |
US4415835A (en) * | 1981-06-22 | 1983-11-15 | General Electric Company | Electron emissive coatings for electric discharge devices |
US4663559A (en) * | 1982-09-17 | 1987-05-05 | Christensen Alton O | Field emission device |
GB8426319D0 (en) * | 1984-10-18 | 1984-11-21 | Oxford Lasers Ltd | Laser devices |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1075782A (en) * | 1910-10-19 | 1913-10-14 | Goldschmidt Ag Th | Method of raising the alloying qualification of titanium. |
US1221769A (en) * | 1916-10-30 | 1917-04-03 | Cooper Company | Alloy. |
US2103033A (en) * | 1934-08-10 | 1937-12-21 | Gen Electric | Electron emissive electrode |
NL48128C (fr) * | 1935-02-23 | |||
US2149657A (en) * | 1936-03-12 | 1939-03-07 | Tungsten Electrodeposit Corp | Thermionic tube |
US2172207A (en) * | 1936-09-19 | 1939-09-05 | Siemens Ag | Glow cathode |
US2179110A (en) * | 1938-08-27 | 1939-11-07 | Rca Corp | Cathode for electron discharge devices |
NL59008C (fr) * | 1941-07-03 | |||
US2339392A (en) * | 1942-10-06 | 1944-01-18 | Rca Corp | Cathode |
US2417730A (en) * | 1942-11-30 | 1947-03-18 | Eitel Mccullough Inc | Electron tube and method of making same |
FR901198A (fr) * | 1943-01-15 | 1945-07-19 | Philips Nv | Tube à décharge à atmosphère de gaz ou de vapeur |
US2557372A (en) * | 1948-02-21 | 1951-06-19 | Westinghouse Electric Corp | Manufacture of thoria cathodes |
US2775531A (en) * | 1949-05-10 | 1956-12-25 | Univ Ohio State Res Found | Method of coating a metal surface |
GB700606A (en) * | 1949-07-27 | 1953-12-09 | M O Valve Co Ltd | Improvements in or relating to thermionic cathodes and materials therefor |
US2674542A (en) * | 1951-02-06 | 1954-04-06 | Metal Hydrides Inc | Method for producing hard surfaced titanium |
US2719355A (en) * | 1952-10-03 | 1955-10-04 | Rca Corp | Carbonized metal and method of making it |
-
1955
- 1955-06-28 US US518547A patent/US2996795A/en not_active Expired - Lifetime
-
1956
- 1956-06-19 FR FR1154716D patent/FR1154716A/fr not_active Expired
- 1956-06-25 GB GB20633/59A patent/GB836109A/en not_active Expired
- 1956-06-25 GB GB19606/56A patent/GB831133A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB831133A (en) | 1960-03-23 |
US2996795A (en) | 1961-08-22 |
GB836109A (en) | 1960-06-01 |
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