@inproceedings{ee69aad8e45e4c4d8c3ed1480c4166d0,
title = "Spark plasma sintering of silver nanopowder",
abstract = "The spark plasma sintering behaviour of silver nanopowder prepared by the electro-explosion method was investigated. Consolidation was carried out from 50°C to 800°C for 5 mins at 34 MPa with differential scanning calorimetry indicating a sintering onset temperature as low as 160°C and an activation energy of 86±1 kJ/mol. Near full density resulted from treatment at 300°C, and at higher temperatures a normal Hall-Petch relation is obeyed. The enhancement of Vicker's hardness to 1000MPa for materials sintered at 300°C is three times greater than for silver annealed in a conventional way. While polysynthetic twinning contributes to superior hardness, the primary cause is the sub-micron grain size.",
keywords = "Grain growth, Hardness, Nanocrystalline materials, Nanopowder, Silver, Sintering, Twinning",
author = "Ng, \{H. B.\} and C. Shearwood and White, \{T. J.\} and Yu, \{L. G.\} and Khor, \{K. A.\}",
year = "2008",
doi = "10.1117/12.759383",
language = "English",
isbn = "9780819469700",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
booktitle = "BioMEMS and Nanotechnology III",
note = "BioMEMS and Nanotechnology III ; Conference date: 05-12-2007 Through 07-12-2007",
}