Accession Number : AD0466363

Title :   EMBRITTLEMENT OF SILVER CHLORIDE BY COPPER CHLOROCOMPLEXES.

Descriptive Note : Technical rept.,

Corporate Author : MARTIN MARIETTA CORP BALTIMORE MD RESEARCH INST FOR ADVANCED STUDIES

Personal Author(s) : Westwood, A. R. C. ; Goldheim, D. L.

Report Date : MAY 1965

Pagination or Media Count : 27

Abstract : Previous studies have revealed that when polycrystalline AgCl is deformed in aqueous solutions containing silver complex-ions of charge greater than (2-) or (1+), the fracture mode changes from ductile and transcrystalline, as in air, to brittle and intercrystalline. In the present paper it is demonstrated that complexes not containing silver, viz. copper chlorocomplexes, also can induce brittle behavior in polycrystalline AgCl. The phenomenon of complex-ion embrittlement may be more general than hitherto indicated. Observations on the variation in time to failure of statically loaded specimens with applied stress and with variation of (1) concentration and type of copper chlorocomplexes present in the testing environment (2) composition and temperature of the base environment (HCl or H2O) are discussed. (Author)

Descriptors :   (*SILVER COMPOUNDS, CHLORIDES), (*BRITTLENESS, SILVER COMPOUNDS), (*COMPLEX COMPOUNDS, COPPER COMPOUNDS), CRYSTALS, FRACTURE(MECHANICS), HYDROCHLORIC ACID, SOLUTIONS(MIXTURES), IONS, FAILURE(MECHANICS), MECHANICAL PROPERTIES, DEFORMATION.

Distribution Statement : APPROVED FOR PUBLIC RELEASE