GB961070A - Improvements in or relating to end closures for ceramic tubes - Google Patents

Improvements in or relating to end closures for ceramic tubes

Info

Publication number
GB961070A
GB961070A GB1105162A GB1105162A GB961070A GB 961070 A GB961070 A GB 961070A GB 1105162 A GB1105162 A GB 1105162A GB 1105162 A GB1105162 A GB 1105162A GB 961070 A GB961070 A GB 961070A
Authority
GB
United Kingdom
Prior art keywords
tube
cap
glass
niobium
sealed
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
Application number
GB1105162A
Inventor
Evan Herbert Nelson
Lucy Florence Oldfield
Sydney Alfred Richard Rigden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1105162A priority Critical patent/GB961070A/en
Publication of GB961070A publication Critical patent/GB961070A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/361—Seals between parts of vessel
    • 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
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
    • C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
    • C04B37/025—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of glass or ceramic material
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/10—Glass interlayers, e.g. frit or flux
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • C04B2237/343—Alumina or aluminates
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/40—Metallic
    • C04B2237/403—Refractory metals
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/62—Forming laminates or joined articles comprising holes, channels or other types of openings
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/64—Forming laminates or joined articles comprising grooves or cuts
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/76—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/76—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc
    • C04B2237/765—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc at least one member being a tube
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/84—Joining of a first substrate with a second substrate at least partially inside the first substrate, where the bonding area is at the inside of the first substrate, e.g. one tube inside another tube

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Ceramic Products (AREA)

Abstract

A ceramic tube of high alumina content, e.g. light-transmitting high-density polycrystalline alumina, is sealed at one or both ends by a cap of niobium having a cylindrical portion fitting inside or outside the tube and sealed in place by a layer of glass, of substantially the same coefficient of thermal expansion as the cap and the tube, between the surfaces. Powdered glass, preferably having the following composition by weight : SiO2 10%, Al2O3 37.1%, CaO 45.9%, MgO 5%, and SrO 2%, is placed in the inverted cup, through which a niobium tube may extend, the end of the ceramic tube is inserted, the cap, tube end, and glass are heated to melt the glass which is drawn by capillarity into the annular space between the tube and cap, and the parts are then allowed to cool; alternatively, the surface of the cap is coated with powdered glass in a binder of ethylcellulose in ethyl lactate and the cap and tube after assembly are heated in an atmosphere of argon to drive off the binder and melt the glass. In modifications the cap is in the form of a solid or hollow plug fitting in the end of the tube and provided with a flange extending over the end of the tube; a washer of molybdenum, preferably sealed in place by a layer of titanium, may overlie the flanged end of the plug. The Provisional Specification refers only to the use of a metal cap without restriction to niobium.
GB1105162A 1962-03-22 1962-03-22 Improvements in or relating to end closures for ceramic tubes Expired GB961070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1105162A GB961070A (en) 1962-03-22 1962-03-22 Improvements in or relating to end closures for ceramic tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1105162A GB961070A (en) 1962-03-22 1962-03-22 Improvements in or relating to end closures for ceramic tubes

Publications (1)

Publication Number Publication Date
GB961070A true GB961070A (en) 1964-06-17

Family

ID=9979108

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1105162A Expired GB961070A (en) 1962-03-22 1962-03-22 Improvements in or relating to end closures for ceramic tubes

Country Status (1)

Country Link
GB (1) GB961070A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4219894Y1 (en) * 1965-04-08 1967-11-17
JPS513669Y1 (en) * 1970-12-01 1976-02-02
JPS5138228Y1 (en) * 1975-04-30 1976-09-18
FR2373156A1 (en) * 1976-12-06 1978-06-30 Gen Electric ADVANCED HIGH PRESSURE DISCHARGE LAMP
WO2009037063A1 (en) * 2007-09-19 2009-03-26 Osram Gesellschaft mit beschränkter Haftung High pressure discharge lamp

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4219894Y1 (en) * 1965-04-08 1967-11-17
JPS513669Y1 (en) * 1970-12-01 1976-02-02
JPS5138228Y1 (en) * 1975-04-30 1976-09-18
FR2373156A1 (en) * 1976-12-06 1978-06-30 Gen Electric ADVANCED HIGH PRESSURE DISCHARGE LAMP
WO2009037063A1 (en) * 2007-09-19 2009-03-26 Osram Gesellschaft mit beschränkter Haftung High pressure discharge lamp
US8115390B2 (en) 2007-09-19 2012-02-14 Osram Ag High pressure discharge lamp
CN101802973B (en) * 2007-09-19 2012-05-16 欧司朗股份有限公司 High-pressure discharge lamp

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