Densification Behavior and Microstructural Development of Nano-Agglomerate Powder during Sintering

Abstract:

Article Preview

Densification behavior of nano-agglomerate powder during pressureless sintering of Fe-Ni nanopowder was investigated in terms of diffusion kinetics and microstructural development. To understand the role of agglomerate boundary for sintering process, densification kinetics of Fe-Ni nano-agglomerate powder with different agglomerate size was investigated. It was found that activation energy for densification process was lower in the small-sized agglomerate powder. The increase in the volume fraction of inter-agglomerate boundary acting as high diffusion path might be responsible for the enhanced diffusion process.

Info:

Periodical:

Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim

Pages:

505-508

Citation:

Y. S. Kang et al., "Densification Behavior and Microstructural Development of Nano-Agglomerate Powder during Sintering ", Materials Science Forum, Vols. 534-536, pp. 505-508, 2007

Online since:

January 2007

Export:

Price:

$38.00

[1] H. Gleiter: Prog. Mater. Sci. Vol. 33 (1989), p.223.

[2] C. Suryanarayana: Int. Met. Rev. Vol. 40 (1995) p.41.

[3] J.R. Groza: Nanostr. Mater. Vol. 12 (1999), p.987.

[4] R.M. German: Sintering Theory and Practice (John Wiley & Sons Inc., NY 1996).

[5] J.S. Lee and Y.S. Kang: Scripta Mater. Vol. 44 (2001), p.1591.

[6] S.V. Divinski, F. Hisker, Y.S. Kang, J.S. Lee, Chr. Herzig: Z. Metallkd. Vol. 93 (2002), p.265.

[7] S.V. Divinski, F. Hisker, Y.S. Kang, J.S. Lee, Chr. Herzig: Interface Sci. Vol. 11 (2003), p.67.

DOI: https://doi.org/10.1023/a:1021587007368

[8] J.S. Lee, T.H. Kim, J.H. Yu, and S.W. Chung: Nanostr. Mater. Vol. 9 (1997) p.153.

[9] P. Knorr, J.G. Nam and J.S. Lee: Metall. Mater. Trans. Vol. 31 A (2000), p.503.

[10] J.S. Lee, B.H. Cha and Y.S. Kang: Advanced Engin. Mater. Vol. 7 No. 6 (2005), p.467.

Fetching data from Crossref.
This may take some time to load.