Spark plasma sintering of silver nanopowder

H. B. Ng; C. Shearwood; T. J. White; L. G. Yu; K. A. Khor

doi:10.1117/12.759383

27 December 2007 Spark plasma sintering of silver nanopowder

H. B. Ng, C. Shearwood, T. J. White, L. G. Yu, K. A. Khor

Proceedings Volume 6799, BioMEMS and Nanotechnology III; 67990B (2007) https://doi.org/10.1117/12.759383
Event: SPIE Microelectronics, MEMS, and Nanotechnology, 2007, Canberra, ACT, Australia

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.

Citation Download Citation

H. B. Ng, C. Shearwood, T. J. White, L. G. Yu, and K. A. Khor "Spark plasma sintering of silver nanopowder", Proc. SPIE 6799, BioMEMS and Nanotechnology III, 67990B (27 December 2007); https://doi.org/10.1117/12.759383

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available