Shim, JH Byun, JS Cho, YW 2024-01-19T15:09:54Z 2024-01-19T15:09:54Z 2022-03-07 2003 https://pubs.kist.re.kr/handle/201004/117348 TiN/TiB2 and TiN/TiSi2 nanocomposite powders have been mechanochemically synthesized from Ti/BN and Ti/Si3N4 powder mixtures, respectively, employing high-energy ball milling. These composite powders are formed by displacement reactions between titanium and nitrides during milling. These reactions exhibit a self-propagating character. The as-milled powders have been characterized using X-ray diffraction and transmission electron microscopy. After the reactions, the crystallite sizes of both powders decrease continuously during milling down to about 10 nm. The annealing of the as-milled TiN/TiSi2 powders leads to crystallite coarsening and appearance of C49 TiSi2. It is found that the structure of TiSi2 changes from C49 to C54 between 900 and 1000 degreesC. English TRANS TECH PUBLICATIONS LTD Mechanochemical synthesis of TiN/TiB2 and TiN/TiSi2 nanocomposite powders via high energy ball milling Conference 1 9th International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-2002), pp.557 - 562 9th International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-2002) 557 562 SZ SEOUL, SOUTH KOREA 2002-09-08 METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS 000183202400092 2-s2.0-4243405447 Proceedings Paper