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1887
Volume 31, Issue 1
  • ISSN: 0032-1400

Abstract

Palladium-based contact materials are replacing gold finishes on the contacts of many separable connectors used in telecommunications systems in the United States of America due to their lower cost. Before this was possible, however, methods had to be developed for: inhibiting the corrosive attack of palladium by certain chlorine-containing compounds in the atmosphere, retarding the formation of insulating frictional polymers on palladium, and improving its wear resistance. Also, improved manufacturing techniques for palladium contact materials were necessary. An alloy, clad 60 per cent palladium-40 per cent silver having a small amount of gold diffused into its near surface region, and a new palladium electroplating process which is used with a thin gold overplate, were developed. The technology behind these developments is described, and an example of the application of the new materials in a major connection system is given.

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1987-01-01
2024-11-25
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References

  1. M. Antler, IEEE Trans., 1975, PHP-11, 216220 [Google Scholar]
  2. F. H. Reid, Plating, 1965, 52, 531539 [Google Scholar]
  3. D. T. Napp, 3 New York, N.Y., 1975, pp. 2833
  4. H. W. Hermance, T. F. Egan, Bell Syst. Tech. J., 1958, 37, 739777 [Google Scholar]
  5. M. Antler, Platinum Metals Rev., 1982, 26, (3), 106116 [Google Scholar]
  6. T. R. Long, K. F. Bradford, 6 Chicago, 1975, pp. 145154
  7. M. Antler, M. H. Drozdowicz, C. A. Haque, IEEE Trans. Components, Hybrids, Manuf. Technol., 1981, CHMT-4, (4), 482492 [Google Scholar]
  8. M. Antler, op. cit., (Ref. 7), 1982, CHMT-5, (3), 301307
  9. M. Antler, 9“Contact Resistance Probing: Development of a Standard Practice by the American Society for Testing and Materials”, Proc. 10th Int. Conf. on Electr. Contact Phenomena, Budapest, Hungary, 1980, pp. 1321 (ASTM B667–80) [Google Scholar]
  10. C. A. Haque, M. Antler, Corros. Sci., 1982, 22, (10), 939949 [Google Scholar]
  11. S. P. Sharma, Chicago, 1981, pp. 191201
  12. E. S. Sproles, S. P. Sharma, M. H. Drozdowicz, West Berlin, Germany, 1982, pp. 143147
  13. E. S. Sproles, S. P. Sharma, op. cit., (Ref. 7), 1983, CHMT-6, (3), 343348
  14. F. E. Bader, West Berlin, Germany, 1982, pp. 133137
  15. P. Wilkinson, Trans. Inst. Met. Finish., 1982, 60, 152155 [Google Scholar]
  16. F. I. Nobel, op. cit., (Ref. 7), 1985, CHMT-8, (1), 163172
  17. J. A. Abys, H. S. Trop, “All That Glitters is not Gold,”AT&T Bell Lab. Rec., Jan., 1985 [Google Scholar]
  18. H. D. Hedrich, Ch. J. Raub, Metalloberflaeche., 1977, 31, 512 [Google Scholar]
  19. S. G. Miklus, Met. Finish., 1986, 84, (5), 4143; U.S. Patent 4,468,296; 1984 [Google Scholar]
  20. W. H. Abbott, Chicago, 1984, pp. 4752
  21. M. Antler, op. cit., (Ref. 7), 1981, CHMT-4, (1), 1529
  22. M. Antler, E. T. Ratliff, op. cit., (Ref. 7), 1983, CHMT-6, (1), 37
  23. M. Antler, C. M. Preece, E. N. Kaufmann, op. cit., (Ref. 7), 1982, CHMT-5, (1), 8185
  24. T. Sato, Y. Matsui, M. Okada, K. Murakawa, Z. Henmi, op. cit., (Ref. 7), 1981, CHMT-4, (1), 1014
  25. M. Antler, M. Feder, Seattle, WA, 1986, pp. 244250
  26. M. Antler, “Materials Evaluation Under Fretting Conditions,” Special Technical Publication STP 780, ed. S. R. Brown, Philadelphia, PA, 1982, pp. 6885 [Google Scholar]
  27. M. Antler, op. cit., (Ref. 7), 1985, CHMT-8, (1), 87104
  28. M. Antler, Plating, 1970, 57, 615618 [Google Scholar]
  29. C. L. Winings, op. cit., (Ref. 7), 1980, CHMT-3, (4), 601609
  30. M. Antler, “Electronic Connector Contact Lubricants: The Polyether Fluids,” Proc. IEEE Holm Conf. on Electr. Contacts, Boston, MA, 26th–29th October, 1986 [Google Scholar]
  31. E. Guancial, R. W. Kohl, J.J. Dunbar, J. L. Milton, S. DasGupta, op. cit., (Ref. 7), 1983, CHMT-6, (1), 100107
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