IT984490B - PROCEDURE OF PRESSING PARTICULARLY OF A CERAMIC ELEMENT TO ANOTHER METALLIC OR CERAMIC ELEMENT - Google Patents

PROCEDURE OF PRESSING PARTICULARLY OF A CERAMIC ELEMENT TO ANOTHER METALLIC OR CERAMIC ELEMENT

Info

Publication number
IT984490B
IT984490B IT6820273A IT6820273A IT984490B IT 984490 B IT984490 B IT 984490B IT 6820273 A IT6820273 A IT 6820273A IT 6820273 A IT6820273 A IT 6820273A IT 984490 B IT984490 B IT 984490B
Authority
IT
Italy
Prior art keywords
ceramic element
procedure
another metallic
pressing particularly
pressing
Prior art date
Application number
IT6820273A
Other languages
Italian (it)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of IT984490B publication Critical patent/IT984490B/en

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/16—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating with interposition of special material to facilitate connection of the parts, e.g. material for absorbing or producing gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
    • 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
    • C04B37/003—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts
    • C04B37/006—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the groups H01L21/18 - H01L21/326 or H10D48/04 - H10D48/07 e.g. sealing of a cap to a base of a container
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/02—Containers; Seals
    • H01L23/04—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls
    • H01L23/053—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls the container being a hollow construction and having an insulating or insulated base as a mounting for the semiconductor body
    • H01L23/057—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls the container being a hollow construction and having an insulating or insulated base as a mounting for the semiconductor body the leads being parallel to the base
    • 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
    • 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
    • C04B2237/125—Metallic interlayers based on noble metals, e.g. silver
    • 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
    • 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
    • C04B2237/405—Iron metal group, e.g. Co or Ni
    • 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
    • C04B2237/407—Copper
    • 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
    • C04B2237/59—Aspects relating to the structure of the interlayer
    • C04B2237/592—Aspects relating to the structure of the interlayer whereby the interlayer is not continuous, e.g. not the whole surface of the smallest substrate is covered by 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
    • C04B2237/50—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
    • C04B2237/82—Two substrates not completely covering each other, e.g. two plates in a staggered position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01—Chemical elements
    • H01L2924/01079—Gold [Au]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Die Bonding (AREA)
IT6820273A 1972-05-03 1973-04-30 PROCEDURE OF PRESSING PARTICULARLY OF A CERAMIC ELEMENT TO ANOTHER METALLIC OR CERAMIC ELEMENT IT984490B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2068772A GB1426873A (en) 1972-05-03 1972-05-03 Methods of pressure bonding a ceramic member to another member

Publications (1)

Publication Number Publication Date
IT984490B true IT984490B (en) 1974-11-20

Family

ID=10150010

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6820273A IT984490B (en) 1972-05-03 1973-04-30 PROCEDURE OF PRESSING PARTICULARLY OF A CERAMIC ELEMENT TO ANOTHER METALLIC OR CERAMIC ELEMENT

Country Status (6)

Country Link
JP (1) JPS4948707A (en)
DE (1) DE2318727C3 (en)
FR (1) FR2183213B1 (en)
GB (1) GB1426873A (en)
IT (1) IT984490B (en)
NL (1) NL7305890A (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2333358A1 (en) * 1975-11-28 1977-06-24 Comp Generale Electricite SULFUR-SODIUM ELECTROCHEMICAL GENERATOR
GB1574804A (en) * 1976-05-20 1980-09-10 Chloride Silent Power Ltd Metal-to-ceramic seals
US4262300A (en) * 1978-11-03 1981-04-14 Isotronics, Inc. Microcircuit package formed of multi-components
JPS5713024A (en) * 1980-06-30 1982-01-23 Nanbu Denki Seisakusho:Kk Grip releasing device in article grip conveyor
JPS57170581A (en) * 1981-03-26 1982-10-20 Sperry Rand Ltd Seal and method of forming same
JPS58135783A (en) * 1982-02-05 1983-08-12 Shin Meiwa Ind Co Ltd Diffusion bonding method
ZA831948B (en) * 1982-03-31 1983-11-30 De Beers Ind Diamond Abrasive bodies
JPS58181771A (en) * 1982-04-16 1983-10-24 新明和工業株式会社 Diffusion bonding method and composites made by this method
JPS58190880A (en) * 1982-04-30 1983-11-07 昭和アルミニウム株式会社 How to join aluminum and ceramic materials
JPS58219976A (en) * 1982-06-14 1983-12-21 アンリツ株式会社 Classifying apparatus
JPS58219977A (en) * 1982-06-14 1983-12-21 アンリツ株式会社 Classifying apparatus
JPS5916282A (en) * 1982-07-19 1984-01-27 Yuasa Battery Co Ltd Manufacturing method of sodium-sulfur battery
DE3233022A1 (en) * 1982-09-06 1984-03-08 BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau Method for the direct bonding of a body to a ceramic substrate
JPS5957972A (en) * 1982-09-27 1984-04-03 新明和工業株式会社 Diffusion bonding method
GB2132601B (en) * 1982-12-23 1986-08-20 Ferranti Plc Joining articles of materials of different expansion coefficients
JPS59217683A (en) * 1983-05-25 1984-12-07 新明和工業株式会社 Diffusion bonding process
NL8303109A (en) * 1983-09-08 1985-04-01 Philips Nv METHOD FOR ATTACHING TWO PARTS TOGETHER
DE3340424A1 (en) * 1983-11-09 1985-05-15 Brown, Boveri & Cie Ag, 6800 Mannheim ELECTROCHEMICAL STORAGE CELL
FR2559474B1 (en) * 1984-02-15 1988-12-23 Quantel Sa METHOD FOR SEALING AND WATERPROOFING METAL OBJECTS ON A BODY OF VITROCERAMIC MATERIAL
JPS60197516A (en) * 1984-03-15 1985-10-07 Kaindo Uea:Kk Releasing device for cloth hanger and cloth recovering device
DE3608559A1 (en) * 1986-03-14 1987-09-17 Kernforschungsanlage Juelich METHOD FOR JOINING SIC MOLDED PARTS WITH CERAMIC OR METAL AND FOR TREATING SISIC SURFACES, AND AN ALLOY ALLOY
US4785988A (en) * 1986-11-20 1988-11-22 Methode Electronics, Inc. Attachment of lead to elongated conductor
US4895291A (en) * 1989-05-04 1990-01-23 Eastman Kodak Company Method of making a hermetic seal in a solid-state device
JPH0349834A (en) * 1989-07-14 1991-03-04 Sumitomo Electric Ind Ltd Tool using gold as sealant and manufacture thereof
DE69018220T2 (en) * 1989-12-20 1995-07-27 Sumitomo Electric Industries Connecting tool.
US5562716A (en) * 1992-10-20 1996-10-08 Cochlear Limited Package and method of construction
US6730848B1 (en) 2001-06-29 2004-05-04 Antaya Technologies Corporation Techniques for connecting a lead to a conductor
CN100550269C (en) * 2003-03-03 2009-10-14 皇家飞利浦电子股份有限公司 X-ray tube cathode assembly and interface reaction connecting process
WO2008128300A1 (en) 2007-04-23 2008-10-30 Cochlear Limited Implant assembly
US9969654B2 (en) 2014-01-24 2018-05-15 United Technologies Corporation Method of bonding a metallic component to a non-metallic component using a compliant material
CN105364284B (en) * 2015-12-04 2017-08-08 西北工业大学 A kind of zirconium oxide or the low temperature fast welding method for aoxidizing zirconium based composite material

Also Published As

Publication number Publication date
FR2183213B1 (en) 1976-07-23
FR2183213A1 (en) 1973-12-14
JPS4948707A (en) 1974-05-11
DE2318727C3 (en) 1982-04-29
DE2318727A1 (en) 1973-11-15
GB1426873A (en) 1976-03-03
NL7305890A (en) 1973-11-06
DE2318727B2 (en) 1981-06-19

Similar Documents

Publication Publication Date Title
IT984490B (en) PROCEDURE OF PRESSING PARTICULARLY OF A CERAMIC ELEMENT TO ANOTHER METALLIC OR CERAMIC ELEMENT
IT948130B (en) PROCEDURE FOR THE PRODUCTION OF A STRIP OF FASTENING ELEMENTS PREVIOUSLY ORIENTED
IT978741B (en) PLANAR ELEMENT
IT992856B (en) VACUUM SEAL ELEMENT
BE793982A (en) MANUFACTURING OF POROUS CERAMIC PRODUCTS
IT1000826B (en) MANUFACTURING METHOD OF MULTIPLE LAYER BELLOWS AND BELLOWS SO OBTAINED
SE382042B (en) METHOD OF MANUFACTURING METALLIC SILICONE AND SILICO-ALLOY ALLOYS
IT981311B (en) PROCEDURE FOR THE PRODUCTION OF A HARDENING SUBSTANCE BY HYDRATION OF OVEN SLAG
BE805354A (en) PRODUCTION OF FIBRILLES
BR7301575D0 (en) A CONSTRUCTIVE ELEMENT OF SEMANCONDUCTOR
IT980154B (en) METAL CONNECTION ELEMENT AND PROCEDURE FOR ITS MANUFACTURING
IT991482B (en) EXPANSION ANCHOR ELEMENT
IT995521B (en) METHOD OF ALUMINATING A METALLIC SURFACE
IT1008627B (en) PROCEDURE FOR THE PRODUCTION OF CERAMIC SHAPED PIECES
SE382446B (en) WAY TO PRODUCE A TIGHT METAL CERAMIC PRODUCT POWDER
IT946728B (en) PROCEDURE FOR THE PREPARATION OF A TWO LAYER CO SINTERED ELECTRIC CONTACT ELEMENT
BR7303406D0 (en) PROCESS OF PRODUCTION OF A FRICTION ELEMENT
IT988673B (en) BRACELET WATCH
IT993154B (en) ELECTRONIC WATCH
IT1042081B (en) ELECTRONIC MICROPHONE MANUFACTURING PROCEDURE
TR17514A (en) OXYCLING OF METAL
IT984771B (en) GICCO OF DEXTERITY
IT1030891B (en) ELECTRONIC SELECTION ELEMENT
AR197726A1 (en) GAS HERMETIZED GALVANIC ELEMENT
IT995922B (en) IMPROVEMENTS RELATING TO THE MANUFACTURE OF CERAMIC ARTICLES