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hard glass sealing with kovar

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hard glass sealing with kovar

  1. hard glass sealing with kovar Kovar - espimetals.com

    Kovar is an iron-nickel-cobalt alloy with a coefficient of thermal expansion similar to that of hard (borosilicate) glass. This makes it especially suitable for uses which require a matched-expansion seal between metal and glass parts.

  2. hard glass sealing with kovar hard glass sealing with kovar-BBN STEEL sale steel

    The oxidation of Kovar alloy was investigated, the wetting and spreading behavior of hard and soft glasses on Kovar alloy were studed by using the sessile drop method, and the quality and the seal strength of glass-Kovar seals were tested.

  3. hard glass sealing with kovar What is Kovar, and where is it used? | EngineeringClicks

    Main benefits of Kovar. The coefficient of thermal expansion is THE most important mechanical property of Kovar. The alloy is precisely formulated and controlled to produce a coefficient of thermal expansion that is very close to that of hard glass (e.g. borosilicate glass) or ceramic, meaning that it expands and contracts at a similar rate.

  4. hard glass sealing with kovar Kovar Alloy | Hermetic Seal with Kovar Alloys | Elan

    Improved Glass Sealing System for Kovar Hybrid Packages “The Elan 88 series glass system is a major technical breakthrough for the manufacture of high reliability hermetic metal packages.

  5. [PDF]

    hard glass sealing with kovar kovar - University of Chicago

    KOVAR Kovar is an iron-nickel-cobalt alloy with a coefficient of thermal expansion similar to that of hard (borosilicate) glass. This makes it especially suitable for uses which require a matched-expansion seal between metal and glass parts.

  6. hard glass sealing with kovar Kovar-K94610-ASTM F15 | NiWire Industries Co., Ltd.

    General Description. Kovar is a nominal 29%Ni-17%Co-54%Fe alloy that is a well-known glass-sealing alloy suitable for sealing to hard glasses. Kovar has a nominal ...

  7. hard glass sealing with kovar Kovar Sealing 8250 - Corning - Glass Dynamcis LLC

    Schott® borosilicate glass 8250 is widely used as a Kovar Sealing glass. In addition to machine drawn sizes available from Schott®, Glass Dynamics LLC has the ability to produce "redrawn" sizes from .010 to .50" diameters in small lots of 10 to 15 pounds.

  8. hard glass sealing with kovar Kovar Tech Data - High Temp Metals

    Preparation for Sealing. All degreased, fabricated Kovar alloy parts should be degassed and annealed in a wet hydrogen atmosphere. Atmosphere is to be made moist by bubbling the hydrogen through water at room temperature. ... An oxide film on the metallic part is preferred for metal-to-hard glass sealing. The best oxide film is thin and tightly ...

  9. hard glass sealing with kovar Super Alloy KOVAR (UNS K94610) - AZoM.com

    • Topics Covered
    • Introduction
    • Other Designations
    • Annealing
    • Applications
    • Introduction Chemical Composition Physical Properties Mechanical Properties Other Designations Fabrication and Heat Treatment Machinability Forming Welding Annealing Cold Working Applications
    See more on azom.com
  10. hard glass sealing with kovar Glass-to-metal seal - Wikipedia

    It was used as the earliest glass-to-metal seal and is still in use for liquid seals for e.g. rotary shafts. Mercury seal. The first technological use of a glass-to-metal seal was the encapsulation of the vacuum in the barometer by Torricelli. The liquid mercury wets the glass and thus provides for a vacuum tight seal.

    • Glass-to-metal bonds ·
    • Mercury seal ·
    • Platinum wire seal ·
    • Dumet wire seal

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