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http://dx.doi.org/10.4313/JKEM.2007.20.1.086

The Effect of the Te on the Microstructure of Rapidly Solidification Ag-Sn-In Contact Material  

Chang, Dae-Jung (한양대학교 금속재료공학과)
Kwon, Gi-Bong (산업기술시험원)
Kim, Young-Ju (산업기술시험원)
Cho, Dae-Hyoung (산업기술시험원)
Nam, Tae-Woon (한양대학교 금속재료공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.20, no.1, 2007 , pp. 86-91 More about this Journal
Abstract
Contact material is widely used as electrical parts. Ag-CdO has a good wear resistance and stable contact resistance. But the disadvantages of Ag-Cd alloy are coarse Cd oxides and harmful metal, Cd. Then Ag-Sn alloy that has stable and fine Sn oxide at high temperature has been developed. In order to investigate the effect of Te additional that affects the formation of the oxide layer on the surface and the formation of oxide in matrix Ag, we studied the microstructures and properties of Ag-Sn-In(-Te) material fabricated by rapid solidification process. The experimental procedure were melting using high frequency induction, melt spinning, and internal oxidation. Specimens were examined and analyzed by Transmission electron microscopy(TEM), energy dispersive X-ray spectroscopy(EDS) and Vickers hardness. As a result, internal oxidation was completed even at $600^{\circ}C$. Te forms coarse $In_{2}TeO_{6}$ phase and makes fine and well dispersed $SnO_{2}$ Phase. 0.3 wt% Te shows favorable properties.
Keywords
Contact material; Internal oxidation; Ag-Sn-In; Rapid solidification process; Te;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 D. H. Cho, G. B. Kwon, and T. W. Nam, 'The effect of the sn amounts on the microstructure of rapidly solidified Ag-Sn-In alloys', J. Kor. Found. Soc., Vol. 26, No. 2, p. 92, 2006   과학기술학회마을
2 J. W. Lee, 'The effect of Sn on the internal oxidation and microstructure of Ag-Cd alloys', Seoul Nat. Univ. Master's Thesis, p. 51, 1993
3 D. N. Lee, 'The internal oxidation of Ag-Cd alloys', J. Korean Ins. Met., Vol. 14, No.1, p. 20. 1976
4 G. Bohm and M. Kahlweit, 'On internal oxidation of metallic alloys', ACTA Met., Vol. 12, p. 641, 1964
5 Y. S. Shen, Edward J. Zdanuk, and Richard H. Krock, 'The effect of additives from gropps IA and IIA on the morphology and properties of silver-cadmium oxide contacts', Met. Trans., Vol. 8, No.1, p. 16, 1972
6 WEEE, Waste Electrical and Electronic Equipment
7 RoHS, Restriction of Hazardous Substances
8 H. Chang, C. H. Pitt, and G. G. Alexander, 'Electroless silver plating of oxide particles in aqueous-soulution', Mat. Sci. eng., Vol. 8, p. 99, 1991   DOI   ScienceOn
9 X. M. Liu, S. L. Wu, Paul K. Chu, C. Y. Chung, J. Zheng, and S. L. Li, 'Effects of coating process on the characteristics of Ag-$SnO_{2}$ contact materials', Materials Chemistry and Physics, Vol. 98, No. 2-3, p. 477, 2006   DOI   ScienceOn
10 A. Verma and T. R. Anantharaman, 'The internal oxidation behaviour of rapidly solidified silver-tin-indium (Ag-Sn-In) alloy', J. Mat. Sci., Vol. 27, p. 5623, 1992   DOI
11 M. Poniatowski, E. Schulz, and A. wirths, 'Replacement of silver - cadmium oxide with silver - tin oxide in. low-voltage switching devices', Proc. 8th Int. Conf. on Electrical Contact, Vol. 32, p. 30, 1978
12 J. W. Lee and H.-C. Lee, 'Effects of tellurium addition on othe internal oxidation of Ag-Sn alloys', Scripta mater., Vol. 42, p. 169, 2000
13 P. B. Joshia, Prabha S. Krishnan, R. H. Patel, V. L. Gadgeel, P. ramakrishnan, and V. K. Kaushik, 'Effect of lithium addition on the density and oxide-phase morphology of Ag-ZnO electrical contact materials', Materials Letters, Vol. 33, p. 137, 1997   DOI   ScienceOn