Abstract
The paper examines the high-pressure sintering of nanograined ceramic polycrystals based on TiN-TiB2 and TiC0.5N0.5 refractory compounds. Using the optimum pressure (up to 4 GPa) allows keeping the initial nanostate (TiN-TiB2 and TiC0.5N0.5) and obtaining high-density ceramics with enhanced mechanical properties. An x-ray structural analysis is used to examine how the TiN-TiB2 and TiC0.5N0,5 crystalline structure evolves during temperature-pressure treatment, which produces new ceramic materials. Based on the properties of the polycrystalline materials obtained, the temperature-time mode for the consolidation of initial nanopowders is determined to ensure favorable parameters of sintered nanograined ceramics.
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Translated from Poroshkovaya Metallurgiya, Vol. 47, No. 1–2 (459), pp. 62–72, 2008.
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Bykov, A.I., Timofeeva, I.I., Klochkov, L.A. et al. Making and structural features of Ti-N-B and Ti-N-C nanocomposites. Powder Metall Met Ceram 47, 47–53 (2008). https://doi.org/10.1007/s11106-008-0008-1
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DOI: https://doi.org/10.1007/s11106-008-0008-1