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Fabrication of nano-structured materials by high-pressure sintering

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Warianty tytułu
Języki publikacji
PL
Abstrakty
EN
Purpose: The aim of this work was to fabricate nanocrystalline powders and high-density bulk materials using a sintering method with limited grain growth so as to maintain nanocrystalline structure of the materials also after sintering. Design/methodology/approach: The size of crystallites and physical properties of the obtained nanocrystalline powders and sinters made from these powders were examined. The studied materials were pure copper and the following powders: Cu+1%WC, Cu+3%WC, Cu+3%AlNi and AlNi. The technology for preparation of nano-structured powders was used, which included milling the powders in ball mills and their sintering in a pressing furnace. Findings: It was found that the objective of this work can be achieved provided that high-pressure sintering is used, in which the stages of compacting and sintering proceed simultaneously over a short period of time. Research limitations/implications: It is recommended to perform further studies aimed at checking the possibility of using the proposed method of nanomaterials fabrication in the case of the materials with other chemical composition. Practical implications: This work broadens possibilities of metal powder sintering technology by fabrication of bulk nanocrystalline materials. Originality/value: The results from his work shall be useful in determining conditions for fabrication of nanocrystalline or sub-microcrystalline materials by the sintering method.
Rocznik
Strony
109--112
Opis fizyczny
Bibliogr. 15 poz.
Twórcy
autor
autor
autor
autor
Bibliografia
  • 1. S. van Petegem, F. Dalla Torre, D. Segers, H. van Swyge, Free volume in nanostructured Ni, Scripta Materialia 48 (2003) 17-22.
  • 2. A. Latapie, D. Farkas, Effect of grain size on the elastic properties of nanocrystalline -iron, Scripta Materialia 48 (2003) 611-615.
  • 3. M.A. Meyers, A. Mishra, D.J. Benson, Mechanical properties of nanocrystalline materials, Progress in Materials Science 51/4 (2006) 427-556.
  • 4. V. Viswanathan, T. Laha, K. Balani, A. Agarwak, S. Seal, Challenges and advances in nanocomposite processing techniques, Materials Science and Engineering 54 (2006) 121-285.
  • 5. J.P. Stobrawa, Z.M. Rdzawski, Deformation behaviour of dispersion hardened nanocrystalline copper, Journal of Achievements in Materials and Manufacturing Engineering 17 (2006) 153-156.
  • 6. J.P. Stobrawa, Z.M. Rdzawski, W.J. Głuchowski, Microstructure and properties of nanocrystalline copper-yttria microcomposites, Journal of Achievements in Materials and Manufacturing Engineering 24/ 2 (2007) 153-156.
  • 7. J.R. Thompson, C. Politis, Formation of Amorphous Ti-Pd Alloys by Mechanical Alloying Methods, Europhysic Letters 3/2 (1987) 199-205.
  • 8. T.R.Smith, K.S.Vecchio, Synthesis and mechanical properties of nanoscale mechanically-milled NiAl, Nanostructured Materials 5 (1995) 11-23.
  • 9. C.C. Koch, J.D. Whittenberger, Mechanical milling/alloying of intermetallics, Intermetallics 4 (1996) 339-355.
  • 10. C.C. Koch, Synthesis of nanostructured materials by mechanical milling: problems and opportunities, Nanostructured Materials 9 (1997) 13-22.
  • 11. C. Suryanarayana, Mechanical alloying and milling, Progress in Materials Science 46 (2001) 1-184.
  • 12. R. Nowosielski, W. Pilarczyk, The influence of HEBM on the structure of Fe-0,8%C alloys, Journal of Achievements in Materials and Manufacturing Engineering 22/ 1 (2007) 33-36.
  • 13. Y. Champion, S. Guerin-Mailly, J.L. Bonnentien, P. Langlois, Fabrication of bulk nanostructured materials from metallic nano-powders: structure and mechanical behaviour, Scripta Materialia 44 (2001) 1609-1613.
  • 14. H.P. Klug, L.E. Alexander, X-Ray Diffraction Procedures, John Wiley & Sons, New York, 1954.
  • 15. M. Staszewski, Z.M. Rdzawski, A.Wrona, Residual stresses in the strips from copper-based alloys, Journal of Achievements in Materials and Manufacturing Engineering 25/2 (2007) 35-38.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BSL9-0030-0024
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