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- Title
FABRICATION OF A SPHERICAL TITANIUM POWDER BY COMBINED COMBUSTION SYNTHESIS AND DC PLASMA TREATMENT.
- Authors
CHOI, W. J.; JOO, W.; LIM, J. H.; PARK, K. T.; CHOI, S. H.; SIM, J. J.; ALI, B.; KIM, T. S.; HYUN, S. K.; LEE, Y. J.
- Abstract
Combustion synthesis is capable of producing many types of refractory and ceramic materials, as well as metals, with a relatively lower cost and shorter time frame than other solid state synthetic techniques. TiO2 with Mg as reductant were dry mixed and hand compacted into a 60 mm diameter mold and then combusted under an Ar atmosphere. Depending on the reaction parameters (Mg concentration 2 ≤ α ≤ 4), the thermocouples registered temperatures between 1160°C and 1710°C. 3 mol of Mg gave the optimum results with combustion temperature (Tc) and combustion velocity (Uc) values of 1372°C and 0.26 cm/s respectively. Furthermore, this ratio also had the lowest oxygen concentration in this study (0.8 wt%). After combustion, DC plasma treatment was carried out to spheroidize the Ti powder for use in 3D printing. The characterization of the final product was performed using X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, and N/O analysis.
- Subjects
SELF-propagating high-temperature synthesis; TITANIUM compounds; TITANIUM powder; THREE-dimensional printing; COMBUSTION measurement
- Publication
Archives of Metallurgy & Materials, 2017, Vol 62, Issue 2, p1057
- ISSN
1733-3490
- Publication type
Article
- DOI
10.1515/amm-2017-0153