Crystallizing glass seals in the system BaO/ZnO/SiO2 with high coefficients of thermal expansion

Abstract TECHALLOY GLASSEAL 42 is an iron-nickel alloy with thermal expansion that closely matches the 1075 glass. Also, it is sometimes used for sealing action for the 0120 and 0010 glasses. It has the lowest expansivity of the iron-nickel alloys that are commonly used for glass-sealing applications. It is made under strict metallurgical control to provide uniformity of performance. Among its uses are sealed-beam automobile headlamps, ceramic-to-glass seals and industrial lamps. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-59. Producer or source: Techalloy Company Inc..

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42 NICKEL-IRON ALLOY

Alloy Digest ◽

10.31399/asm.ad.fe0066 ◽

1982 ◽

Vol 31 (8) ◽

Keyword(s):

Thermal Expansion ◽

Corrosion Resistance ◽

Nickel Alloys ◽

Iron Alloy ◽

Heat Treating ◽

Nickel Iron ◽

Iron Nickel ◽

Nickel Iron Alloy ◽

Glass Seals ◽

Iron Nickel Alloys

Abstract The 42 Nickel-Iron alloy has the lowest expansivity of the Iron-Nickel alloys that are commonly used for glass-sealing applications. Its thermal expansion closely matches the 1075 glass and it is sometimes used for sealing action with the 0120 and 0010 glasses. It is made close metallurgical control to provide uniformity of performance. Its many uses include industrial lamps, ceramic-to-glass seals, and sealed-beam automobile headlamps. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-66. Producer or source: Iron-nickel alloy mills.

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Cobalt containing crystallizing glass seals for solid oxide fuel cells – A new strategy for strong adherence to metals and high thermal expansion

Journal of Power Sources ◽

10.1016/j.jpowsour.2014.02.024 ◽

2014 ◽

Vol 258 ◽

pp. 182-188 ◽

Cited By ~ 21

Author(s):

Christian Thieme ◽

Christian Rüssel

Keyword(s):

Thermal Expansion ◽

Fuel Cells ◽

Solid Oxide Fuel Cells ◽

Solid Oxide ◽

Oxide Fuel ◽

New Strategy ◽

High Thermal Expansion ◽

Glass Seals

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Checking the Thermal Expansion of Glass by Stresses in Cylindrical Glass-seals

Journal of the Ceramic Association Japan ◽

10.2109/jcersj1950.59.382 ◽

1951 ◽

Vol 59 (663) ◽

pp. 382-385

Author(s):

Ichiro KITANO

Keyword(s):

Thermal Expansion ◽

Cylindrical Glass ◽

Glass Seals

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Microstructural and Microchemical Characterization of Nickel Sulfide Inclusions in Plate Glass

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100089123 ◽

1991 ◽

Vol 49 ◽

pp. 962-963

Author(s):

J. Cooper ◽

O. Popoola ◽

W. M. Kriven

Keyword(s):

Thermal Expansion ◽

Phase Transformation ◽

Glass Matrix ◽

Nickel Sulfide ◽

Plate Glass ◽

Thermal Expansion Mismatch ◽

Volume Increase ◽

Β Phase ◽

Microchemical Characterization

Nickel sulfide inclusions have been implicated in the spontaneous fracture of large windows of tempered plate glass. Two alternative explanations for the fracture-initiating behaviour of these inclusions have been proposed: (1) the volume increase which accompanies the α to β phase transformation in stoichiometric NiS, and (2) the thermal expansion mismatch between the nickel sulfide phases and the glass matrix. The microstructure and microchemistry of the small inclusions (80 to 250 μm spheres), needed to determine the cause of fracture, have not been well characterized hitherto. The aim of this communication is to report a detailed TEM and EDS study of the inclusions.

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