Microstructural Features of Sn-3.0Ag-0.7Cu Alloy Prepared by Conventional and Microwave Sintering

Abstract:

Article Preview

In the present contribution, atomised Sn-3.0Ag-0.7Cu powder alloy with a size of less than 250 μm was first compacted and then microwave and conventionally sintered at 175 °C for 15 and 120 minutes, respectively. Despite the very different processing times applied, the degree of porosity was very similar, i.e., around 7%. The as-atomized microstructure of the conventionally sintered samples was barely altered with β-Sn dendritic matrix comprising Cu6Sn5 and Ag3Sn intermetallic particles. The microwave sintered Sn-3.0Ag-0.7Cu sample exhibited a combination of fine and very coarse intermetallic particles, with the presence of well-developed needle-like Ag3Sn, and its dendritic pattern disappeared completely. The Vickers hardness of both samples was measured and found to be consistent with their microstructures.

Info:

Periodical:

Edited by:

Aloisio Nelmo Klein, Uílame Umbelino Gomes, Nério Vicente Jr. and Dr. Henning Zoz

Pages:

412-417

DOI:

10.4028/www.scientific.net/MSF.899.412

Citation:

C. P. Turssi et al., "Microstructural Features of Sn-3.0Ag-0.7Cu Alloy Prepared by Conventional and Microwave Sintering", Materials Science Forum, Vol. 899, pp. 412-417, 2017

Online since:

July 2017

Export:

Price:

$35.00

* - Corresponding Author

[1] M. Abtew, G. Selvaduray: Mater. Sci. Eng. R. Rep. Vol. 27 (2000), p.95.

[2] K. Suganuma: Curr. Opin. Solid State Mater. Sci. Vol. 5 (2001), p.55.

[3] J.E. Spinelli, B.L. Silva, A. Garcia: J. Electron. Mater. Vol. 43 (2014), p.1347.

[4] R.M. German: Powder Metallurgy Science. (Metal Powder Industry First ed. New Jersey, 1994).

[5] R.R. Menezes, P.M. Souto, R.H.G.A. Kiminami, Microwave hybrid fast sintering of porcelain bodies, J. Mater. Process. Technol. Vol. 190 (2007), p.223.

DOI: 10.1016/j.jmatprotec.2007.02.041

[6] M. Oghbaei, O. Mirzaee: J. Alloys Compd. Vol. 494 (2010), p.175.

[7] M.E. Alam, M. Gupta: Powder Metall. Vol. 52 (2009), p.105.

[8] B.L. Silva, N. Cheung, A. Garcia, J.E. Spinelli: J. Electron. Mater. Vol. 42 (2013, p.179.

[9] K.S. Kim, S.H. Huh, K. Suganuma: J. Alloys Compd. Vol. 352 (2003), p.226.

[10] M. Kerr, N. Chawla: Acta Mater. Vol. 52 (2004), p.4527.

In order to see related information, you need to Login.