GLASS-METAL "INTERFACES" AND BONDING

Technical Report · Tue Jan 01 04:00:00 EST 1963

OSTI ID:4691295

Pask, J A

ABS>A theory on glass-metal bonding is developed and discussed. The theory states that chemical bonding occurs at the glass-metal interface'' whem there is a balance of bond emergies, which is achieved when thermodynamic equilibrium exists. This interface'' consists of a transi-tion zone that includes an intermediate -ous oxide layer,'' which can be monomolecular in thickness. This layer must be in thermodynamic equilibrium with the glass at the interface and also with the metal at the interface. The development of these conditioms is discussed for the examples of iron, gold, and platinum in contact with sodium disilicate. The significance of sessile-drop experiments and strength measurements of glass-metal seals are also discussed. The steps takem im making glass-metal seals are briefly covered. (auth)

• Research Organization: California. Univ., Berkeley. Lawrence Radiation Lab.; California. Univ., Berkeley
• DOE Contract Number: W-7405-ENG-48
• NSA Number: NSA-17-041362
• OSTI ID: 4691295
• Report Number(s): UCRL-10611
• Country of Publication: United States
• Language: English

Related Subjects

BINDING ENERGY
BONDING
GLASS
GOLD
IRON
LAYERS
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
MOLECULES
OXIDES
PLATINUM
SEALS
SODIUM SILICATES
SURFACES
TENSILE PROPERTIES
THERMODYNAMICS
THICKNESS