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Electrically Conducting Glass Fibers
Author(s) -
PROVANCE J. D.,
HUEBNER J. S.
Publication year - 1971
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1971.tb12243.x
Subject(s) - materials science , composite material , electrical resistivity and conductivity , amorphous metal , amorphous solid , glass fiber , molybdenum , fiber , protein filament , metal , electrical resistance and conductance , ultimate tensile strength , metallurgy , alloy , chemistry , organic chemistry , electrical engineering , engineering
Fiber formation and electrical conductivity were investigated in molybdenum phosphate glasses containing Ag 2 O; PdO was substituted for Ag 2 O and other constituents in the base glass. Temperature coefficients of electrical resistivity and linear expansion and other properties were determined for the bulk glasses. X‐ray diffraction confirmed that some compositions were amorphous; these glasses could be drawn by conventional methods into continuous filaments. Migration and reduction of Ag + at the glass fiber surfaces, induced by a secondary heat treatment, formed a metallic, electrically conducting, solder‐able surface film. Filament resistance of 0.07 Ω/ft/2000 fibers was achieved; resistance increased nearly linearly with temperature from −200° to 200°C. Imperfections in the metallic film, acting as flaw sites, contributed to a reduction of ∼50% in tensile strength compared to that of pristine fibers.