| |
Microstructurally-induced Embrittlement of Archaeological Silver.
Russell Wanhill (NLR, Amsterdam)
Microstructurally-induced embrittlement of archaeological silver is characterized
by grain boundary fracture. This is most likely due to impurity elements
segregating to grain boundaries and reducing their cohesive strength.
Empirical and theoretical concepts of segregation-induced embrittlement
are considered with respect to silver and the impurity elements in archaeological
silver, furthermore considering the special nature of grain boundaries
and the influence of grain size. Surveys are given of diagnostic techniques
and possible remedial measures for embrittled archaeological silver.
|
Return
to upcoming meetings page
