조영환 김지우 심재혁 안재평 오규환 2024-01-21T04:35:57Z 2024-01-21T04:35:57Z 2021-09-06 2005-08 1225-7591 https://pubs.kist.re.kr/handle/201004/136242 Nanostructured TiN/TiB2/TiSi2 and TiN/TiB2/Ti5Si3 composite powders have been prepared by mechanochemical reaction from mixtures of Ti, BN, and Si3N4 powders. The raw materials have reacted to form a uniform mixture of TiN, TiB2, and TiSi2 or Ti5Si3, depending on the amount of Si3N4 used in the starting mixtures, and the reaction proceeded through so-called mechanically activated self-sustaining reaction (MSR). Fine TiN and TiB2 crystallites less than a few tens of nanometer were homogeneously dispersed in the amorphous TiSi2 or Ti5Si3 matrix after milling for 12 hours. These amorphous matrices became crystalline phases after annealing at high temperatures as expected, but the original microstructure did not change significantly. 한국분말야금학회 기계화학반응에 의한 TiN/TiB2/Ti-silicides 나노복합분말의 합성과 반응기구 Synthesis of TiN/TiB2/Ti-silicides Nanocomposite Powders by Mechanochemical Reaction and its Reaction Mechanism Article 2 한국분말야금학회지, v.12, no.4, pp.273 - 278 한국분말야금학회지 12 4 273 278 kci ART000966879 Composite materials Nanostructured materials Mechanochemical processing X-ray diffraction Transmission electron microscopy