Abstract
The low temperature sintering behaviour of nanocrystalline Ag powder (with anaverage size of 70 nm) was characterized. Using spark plasma sintering (SPS), the Agnanopowders can be successfully sintered at low pressure for only 5 min without externalheating, and the sintering density increases and porosity decreases significantlywith increase in the sintering temperature. Nanoindentation has been used tocharacterize the SPS sintered Ag samples. The mechanisms of the low sinteringtemperature behaviour of the nano-Ag powder and the nanoscale mechanicalperformance have been discussed. Compression tests were also used to characterize themechanical properties of the sintered Ag sample with a maximum strain up to 15%.
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