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Effect of nickel additions on the sintering and properties of biporous molybdenum-copper pseudoalloys

  • Theory and Technology of Sintering, Heat, and Chemical Heat-Treatment Processes
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Abstract

The addition of small amounts (1%) of nickel were sufficient to activate liquid-phase sintering and improve phase interface adhesion and the mechanical properties of molybdenum-copper pseudoalloys with a complex bimodal pore structure. The pseudoalloys retained high porosity (up to 75%) after sintering. This was achieved by lowering the microporosity in the biporous materials, thus decreasing the total amount of shrinkage which occurred during the sintering process.

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References

  1. A. G. Kostornov and V. P. Semenets, “Pore structure and hydrodynamic properties of permeable molybdenum-copper composites,”Poroshk. Metall., No. 2, 26–31 (1990).

    Google Scholar 

  2. A. G. Kostornov and V. P. Semenets, “Formation of interparticle contacts in the sintering of molybdenum-copper composites,”Poroshk. Metall., No. 3, 25–30 (1990).

    Google Scholar 

  3. A. G. Kostornov and V. P. Semenets, “Pysico-mechanical properties of porous molybdenum-copper composites,”Poroshk. Metall., No. 4, 59–62 (1990).

    Google Scholar 

  4. L. I. Chernyshev, “Formation of the pore structure of biporous materials in relation to the volume changes during sintering,”Poroshk. Metall., Nos. 9–10, 97–103 (1999).

    Google Scholar 

  5. V. L. Yupko, V. V. Garbuz, and N. I. Kryuchkova, “Wetting of molybdenum by Cu-O melts,”Poroshk. Metall., No. 10, 72–78 (1991).

    Google Scholar 

  6. V. N. Eremenko, Yu. V. Haidich, and I. A. Lavrinenko,Sintering in the Presence of a Liquid Metal Phase [in Russian], Nauk, Dumka, Kiev (1969).

    Google Scholar 

  7. G. V. Levchenko, “Metal-ceramic contacts with elevated disconnection abilities,”Diss. Kand. Tech. Nauk, Kiev (1964).

  8. R. V. Minakova, N. D. Lesnik, and A. A. Flis, “Effect of additions on the adhesional properties and formation of interphase boundaries in systems of tungsten and molybdenum with copper, silver, and their alloys,”Adgez. Rasplavov Payka Mater., No. 12, 54–57 (1994).

    Google Scholar 

  9. V. V. Skorokhod, S. M. Solonin, and L. I. Chernyshev, “Sintering mechanism of highly porous materials in the presence of a volatile pore former,”Proshk. Metall., No. 11, 31–36 (1974).

    Google Scholar 

  10. M. Yu. Bal’shin,Scientific Principles of the Powder Metallurgy of Fibers [in Russian], Metallurgiya, Moscow (1972).

    Google Scholar 

  11. V. V. Skorokhod and S. M. Solonin,Physico-Metallurgical Principles of Powder Sintering [in Russian], Metallurgiya, Moscow (1984).

    Google Scholar 

  12. V. V. Skorokhod, S. M. Solonin, and L. I. Chernyshev, “Highly porous tungsten-copper materials obtained by liquid-phase sintering,”Poroshk. Metall., No. 2, 17–21 (1978).

    Google Scholar 

  13. Yu. V. Haidich, V. M. Perevertailo, I. A. Lavrenko, et al.,Surface Properties of Melts and Solid Bodies and their Applications in Materials Science [in Russian], Nauka Dumka, Kiev (1991).

    Google Scholar 

  14. V. I. Trefilov, Yu. V. Mil’man, and S. A. Firstov,Physical Principles of the Strength of Refractory Metals [in Russian], Nauk, Dumka, Kiev (1975).

    Google Scholar 

  15. R. V. Minakova, V. D. Voitenko, P. A. Verkhovodov, et al., “Fractographic features of fractures of the alloy WC-Ni-Fe (90:7:3),”Poroshk. Metall., No. 2, 81–92 (1985).

    Google Scholar 

  16. I. N. Frantsevich, N. D. Lesnik, R. V. Minakova, et al., “Composite materials for high-current contacts and electrodes,” in:Proceedings of the Powder Metallurgy Conference, Warsaw (1972), Part 2, pp. 457–472.

  17. V. V. Skorokhod,Rheological Principles of Sintering Theory [in Russian], Nauk, Dumka, Kiev (1972).

    Google Scholar 

  18. L. D. Landau and E. M. Lifshits,Electrodynamics of Continuous Media, GITTL, Moscow (1957).

    Google Scholar 

  19. I. K. Kikoin (ed.),Tables of Physical Values: Handbook [in Russian], Atomizdat, Moscow (1976).

    Google Scholar 

  20. L. I. Chernyshev, “Liquid-phase sintering of molybdenum-copper alloys with a biporous structure,”Poroshk. Metall., No. 2, 36–39 (1987).

    Google Scholar 

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Institute for Problems of Materials Science, Ukraine National Academy of Sciences, Kiev. Translated from Poroshkovaya Metallurgiya. Nos. 11–12(410), pp. 53–61, November–December, 1999.

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Chernyshev, L.I. Effect of nickel additions on the sintering and properties of biporous molybdenum-copper pseudoalloys. Powder Metall Met Ceram 38, 579–585 (1999). https://doi.org/10.1007/BF02676190

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  • DOI: https://doi.org/10.1007/BF02676190

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