Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09a
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- Pages.442-443
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- 2006
Vacuum Carbonization of Nanometer Tungsten Powder with Carbon Black
- Luo, Ji (School of Materials Science and Engineering, University of Science and Technology Beijing) ;
- Lin, Tao (School of Materials Science and Engineering, University of Science and Technology Beijing) ;
- Guo, Zhi-meng (School of Materials Science and Engineering, University of Science and Technology Beijing) ;
- Jia, Chengchang (School of Materials Science and Engineering, University of Science and Technology Beijing)
- Published : 2006.09.24
Abstract
Vacuum carbonization of nanometer tungsten powder was investigated in a simple designed apparatus. An X-Y recorder was used to plot differential thermal analysis (DTA) curves to determine starting temperature of carbonization of four samples with different specific surface area. The product was detected by X-ray Diffraction (XRD) and small angle X-ray scattering (SAXS). The results show that finer tungsten powder has lower starting temperature of carbonization. Tungsten powder, which BET surface area is