Characterization of spark plasma sintered Ag nanopowders

Yong Qing Fu, Christopher Shearwood, Ben Xu, L. G. Yu, Khiam Aik Khor

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The low temperature sintering behaviour of nanocrystalline Ag powder (with an average size of 70 nm) was characterized. Using spark plasma sintering (SPS), the Ag nanopowders can be successfully sintered at low pressure for only 5 min without external heating, and the sintering density increases and porosity decreases significantly with increase in the sintering temperature. Nanoindentation has been used to characterize the SPS sintered Ag samples. The mechanisms of the low sintering temperature behaviour of the nano-Ag powder and the nanoscale mechanical performance have been discussed. Compression tests were also used to characterize the mechanical properties of the sintered Ag sample with a maximum strain up to 15%.
Original languageEnglish
Pages (from-to)115707
JournalNanotechnology
Volume21
Issue number11
DOIs
Publication statusPublished - 19 Mar 2010

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