Fundamentals of glass-to-metal bonding. V-A. Temperature and pressure dependence of the wettability of metals by glass. V-B. Reactions of tantalum and sodium silicate glass. Fifth technical report

Technical Report · Fri Jun 24 04:00:00 EDT 1955

OSTI ID:6269812

Fulrath, R M; Mitoff, S P; Pask, J A

A suitable vacuum furnace has been constructed for studying the effects of temperature and pressure on the wettability of metals by glass. A system was completed that was capable of subjecting test combinations up to temperatures of 1400/sup 0/C at a working pressure of 1 x 10/sup -5/ mm Hg. The mechanism of wetting with change in pressure and temperature is discussed based primarily on the experimental data for the systems gold-sodium silicate glass and platinum-sodium silicate glass. Other metal-sodium silicate glass systems are discussed on this basis. The interfacial energy for the system gold-sodium silicate glass was calculated to be 1230 dynes per cm. The limitations imposed on the use of Young's equation for analyzing wettability in systems in which an interfacial compound is formed are discussed.

• Research Organization: California Univ., Berkeley (USA). Inst. of Engineering Research
• DOE Contract Number: AM03-76SF00034
• OSTI ID: 6269812
• Report Number(s): DOE/SF/00034-T16; ON: DE85002848
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALKALI METAL COMPOUNDS
ELEMENTS
GLASS
GOLD
INTERFACES
MECHANICAL PROPERTIES
METALS
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
RESEARCH PROGRAMS
SILICATES
SILICON COMPOUNDS
SODIUM COMPOUNDS
SODIUM SILICATES
TRANSITION ELEMENTS
WETTABILITY
YOUNG MODULUS