Paper
21 December 2007 Spark plasma sintering of wire exploded tungsten nano-powder
C. Shearwood, H. B. Ng
Author Affiliations +
Proceedings Volume 6798, Microelectronics: Design, Technology, and Packaging III; 67981B (2007) https://doi.org/10.1117/12.759375
Event: SPIE Microelectronics, MEMS, and Nanotechnology, 2007, Canberra, ACT, Australia
Abstract
Mechanical and thermodynamic measurements are reported for specimens spark plasma sintered from tungsten nano-powder. A maximum Vickers hardness of 3.31±0.03 GPa, at a relative density of 0.98 was achieved at sintering temperature of 1,800°C and above. This corresponds to the value of hardness for bulk tungsten. Grain size analysis indicated a grain growth activation energy of 160±10% KJ/mol. Sintering temperatures were found to be as much as 270°C lower than previously reported. During the Spark Plasma Sintering (SPS), a reduction in the amount of tungsten oxide was observed, especially at temperatures above 1,500°C. A number of mechanisms are thought to be responsible including the SPS induced decomposition of the oxide into metallic tungsten.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
C. Shearwood and H. B. Ng "Spark plasma sintering of wire exploded tungsten nano-powder", Proc. SPIE 6798, Microelectronics: Design, Technology, and Packaging III, 67981B (21 December 2007); https://doi.org/10.1117/12.759375
Lens.org Logo
CITATIONS
Cited by 6 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Tungsten

Surface plasmons

Particles

Oxides

Plasma

Temperature metrology

Scattering

Back to Top