GB1351477A - Composite articles and their manufacture - Google Patents

Composite articles and their manufacture

Info

Publication number
GB1351477A
GB1351477A GB1351477DA GB1351477A GB 1351477 A GB1351477 A GB 1351477A GB 1351477D A GB1351477D A GB 1351477DA GB 1351477 A GB1351477 A GB 1351477A
Authority
GB
United Kingdom
Prior art keywords
alloy
sealing layer
shims
components
component
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
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
Publication of GB1351477A publication Critical patent/GB1351477A/en
Expired legal-status Critical Current

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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/645—Pressure sintering
    • 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
    • C04B37/026—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of metals or metal salts
    • 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
    • C04B2237/12—Metallic interlayers
    • C04B2237/122—Metallic interlayers based on 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
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/12—Metallic interlayers
    • C04B2237/126—Metallic interlayers wherein the active component for bonding is not the largest fraction of the interlayer
    • 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
    • C04B2237/60—Forming at the joining interface or in the joining layer specific reaction phases or zones, e.g. diffusion of reactive species from the interlayer to the substrate or from a substrate to the joining interface, carbide forming at the joining interface
    • 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
    • C04B2237/70—Forming laminates or joined articles comprising layers of a specific, unusual thickness
    • C04B2237/708—Forming laminates or joined articles comprising layers of a specific, unusual thickness of one or more of the interlayers
    • 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
    • C04B2237/72—Forming laminates or joined articles comprising at least two interlayers directly next to each other
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

1351477 Ceramic-metal seals GENERAL ELECTRIC CO Ltd 12 May 1972 [11 June 1971] 27568/71 Heading B3V [Also in Division C7] A method of hermetically bonding a first component of refractory material, composed of one or more oxides and in either ceramic or crystalline form to a second component, composed either of a sand refractory oxide or a metal or alloy, for the manufacture of a composite article comprises interposing between adjacent surfaces of the components a sealing layer constituting at least one active metal capable of wetting the surface or surfaces of one or both of the components, together with W, Ni and Cu in relative proportions such as to form an alloy having thermal expansion characteristics substantially matching those of the material of the first component, and pressing the assembly of the components and sealing layer together while simultaneously heating the assembly in an inert atmosphere or vacuum to produce a liquid phase in the sealing layer, and to cause the sealing layer to bond together the adjacent surfaces of the components, the initial sealing layer being such that the final sealing layer produced by the heating step will have a microstructure imparting isotropic thermal expansion characteristics to the layer as a whole. In the embodiment described a Nb component is bonded to a ceramic material having an alumina content of at least 85% by wt. using an alloy having a content of 80-85% W. 12-15% Ni and 3-5% Cu by weight and Ti and/or Zr as the active metal or metals, the latter being in a proportion of 1-15% by weight of the total amount of W, Ni and Cu. In a preferred embodiment a tube constituting a lamp envelope is formed of sintered polycrystalline alumina containing 1% by wt. of MgO and is bonded to Nb end caps using an alloy shim having a content of 82% W, 13À5% Ni and 4À5% Cu by weight, a Zr shim and a Ti shim. The W, Ni and Cu alloy shims are placed next to the Nb end caps and the Zr shims are placed next to the alumina, the Ti shims being sandwiched between the Zr and alloy shims. The assembly is bonded together by heating from 1200-1250‹ C. at a pressure of about 10<SP>-5</SP> torr. The shims may be replaced by a mixture of the required metals in powder form and the alumina may be replaced by corundum.
GB1351477D 1971-06-11 1971-06-11 Composite articles and their manufacture Expired GB1351477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2756871 1971-06-11

Publications (1)

Publication Number Publication Date
GB1351477A true GB1351477A (en) 1974-05-01

Family

ID=10261738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1351477D Expired GB1351477A (en) 1971-06-11 1971-06-11 Composite articles and their manufacture

Country Status (1)

Country Link
GB (1) GB1351477A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197957A (en) 1978-12-26 1980-04-15 Gte Laboratories Incorporated Vacuum tight assembly
EP0165446A1 (en) * 1984-05-21 1985-12-27 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Hermetic seal for window usable with infrared detector
CN103418786A (en) * 2013-09-10 2013-12-04 北京理工大学 Preparation method of W-Cu-Ni alloy material with low W-W connectivity

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197957A (en) 1978-12-26 1980-04-15 Gte Laboratories Incorporated Vacuum tight assembly
EP0165446A1 (en) * 1984-05-21 1985-12-27 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Hermetic seal for window usable with infrared detector
CN103418786A (en) * 2013-09-10 2013-12-04 北京理工大学 Preparation method of W-Cu-Ni alloy material with low W-W connectivity

Similar Documents

Publication Publication Date Title
US3324543A (en) Pressure bonded ceramic-to-metal gradient seals
EP0187025A3 (en) Direct liquid phase bonding of ceramics
US4797328A (en) Soft-solder alloy for bonding ceramic articles
US2667432A (en) Metalized ceramic
US3949118A (en) Process for soldering difficultly solderable material having oxide surface and a solder alloy therefor
US4613549A (en) Bonded metal-ceramics composite
US3999216A (en) Material for magnetic transducer heads
US3395993A (en) Titanium activated nickel seal and method of forming it
US4598025A (en) Ductile composite interlayer for joining by brazing
US3795041A (en) Process for the production of metal-ceramic bond
GB1022432A (en) Improvements in or relating to the bonding of a ceramic to a metal
US3001269A (en) Composite material, brazing alloys and process of manufacture
US4859531A (en) Method for bonding a cubic boron nitride sintered compact
US6663982B1 (en) Silver-hafnium braze alloy
US2820534A (en) Hermetic ceramic-metal seal and method of making the same
US3347704A (en) Method of metal-coating ceramic bodies
GB1351477A (en) Composite articles and their manufacture
US3737977A (en) Method of forming ceramic-metal seal
JPH0729859B2 (en) Ceramics-Metal bonding material
US3241995A (en) Metallizing sintered alumina ceramic bodies
JPH0630829B2 (en) Active metal brazing material
US3700420A (en) Ceramic-to-metal seal
US3032869A (en) Metal-ceramic seal
US3366466A (en) Refractory ceramic-to-metal seal
US5275770A (en) Method for fabrication of a carrier body of aluminum nitride

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee