Making and structural features of Ti-N-B and Ti-N-C nanocomposites |
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| Authors: | A. I. Bykov I. I. Timofeeva L. A. Klochkov A. V. Ragulya L. P. Isaeva V. S. Urbanovich M. M. Ristic |
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| Affiliation: | (1) Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev;(2) Joint Institute of Solid State and Semiconductor Physics, National Academy of Sciences of Byelorussia, Minsk;(3) Serbian Academy of Sciences and Arts, Belgrade |
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| 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. __________ Translated from Poroshkovaya Metallurgiya, Vol. 47, No. 1–2 (459), pp. 62–72, 2008. |
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| Keywords: | sintering high pressure refractory compounds nanoceramics |
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