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Vol.43, No.8, 533 ~ 538, 2005
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| Title |
| Fabrications and Phase Transformations of nano-TiC powders from Titanium Hydride Powders by Reaction Ball Milling Method |
| 배승열 Sung Yeal Bae , 성택경 Tek Kyoung Sung , 정우현 Woo Hyun Jung , 안인섭 In Shup Ahn , 박동규 Dong Kyu Park , 김유영 You Young Kim |
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| Abstract |
| The particle size distribution and phase transformation of nano-titanium carbide (TiC) powders synthesized by mechanical alloying (high energy shaker mill) from activation carbon and TiH2 powders were observed. TiC powders have been synthesized by mechanical alloying (MA) using TiH2-50 at%C mixture powders. X-ray diffractions (XRD) and field emission scanning electron microscopy (FESEM) were used to analyze the structural evolution, particle size and morphologies of powder during milling. The changes of particle size and internal strain for different phase were determined as a function of milling time. TiC and Ti2O3 were formed when milling for 3 hours and TiC phase amount increased with milling time. After 10 hours milling, TiC was formed completely with a nano particle of 300 nm average particle size, were observed with the FESEM and particle size analyzer. |
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| Key Words |
| TiC, TiH2, Metal carbide, Activated carbon, Nano-powder |
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