- In-situ Synthesis of Cu-TiB2 Nanocomposite by MA/SPS
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Young-Soon Kwon, Ji-Soon Kim, Hwan-Tae Kim, Jin-Soo Moon, Dudina D.V, Lomovsky O.I.
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J Korean Powder Metall Inst. 2003;10(6):443-447.
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DOI: https://doi.org/10.4150/KPMI.2003.10.6.443
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 Abstract
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- Nano-sized TiB_2 was in situ synthesized in copper matrix through self-propagating high temperature synthesis (SHS) with high-energy ball milled Ti-B-Cu elemental mixtures as powder precursors. The size of TiB_2 particles in the product of SHS reaction decreases with time of preliminary mechanical treatment ranging from 1 in untreated mixture to 0.1 in mixtures milled for 3 min. Subsequent mechanical treatment of the product of SHS reaction allowed the TiB_2 particles to be reduced down to 30-50 nm. Microstructural change of TiB_2-Cu nanocomposite during spark plasma sintering (SPS) was also investigated. Under simultaneous action of pressure, temperature and electric current, titanium diboride nanoparticles distributed in copper matrix move, agglomerate and form a interpenetrating phase composite with a fine-grained skeleton.
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