Synthesis of Titanium Carbide Nano Particles by the Mechano Chemical Process
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Titanium carbides are widely used for cutting tools and grinding wheels, because of their superior physical properties such as high melting temperature, high hardness, high wear resistance, good thermal conductivity and excellent thermal shock resistance. The common synthesizing method for the titanium carbide powders is carbo-thermal reduction from the mixtures of titanium oxide (TiO2) and carbon black. The purpose of the present research is to fabricate nano TiC powders using titanium salt and titanium hydride by the mechanochemical process (MCP). The initial elements used in this experiment are liquid TiCl4 (99.9%), TiH2 (99.9%) and active carbon (<32 ㎛, 99.9%). Mg powders were added to the TiCl4 solution in order to induce the reaction with Cl-. The weight ratios of the carbon and Mg powders were theoretically calculated. The TiC and MgCl2 powders were milled in the planetary milling jar for 10 hours. The 40㎚ TiC powders were fabricated by wet milling for 4 hours from the TiCl4+C+Mg solution, and 300 ㎚ TiC particles were obtained by using titanium hydride.
Abstract
Titanium carbides are widely used for cutting tools and grinding wheels, because of their superior physical properties such as high melting temperature, high hardness, high wear resistance, good thermal conductivity and excellent thermal shock resistance. The common synthesizing method for the titanium carbide powders is carbo-thermal reduction from the mixtures of titanium oxide (TiO2) and carbon black. The purpose of the present research is to fabricate nano TiC powders using titanium salt and titanium hydride by the mechanochemical process (MCP). The initial elements used in this experiment are liquid TiCl4 (99.9%), TiH2 (99.9%) and active carbon (<32 ㎛, 99.9%). Mg powders were added to the TiCl4 solution in order to induce the reaction with Cl-. The weight ratios of the carbon and Mg powders were theoretically calculated. The TiC and MgCl2 powders were milled in the planetary milling jar for 10 hours. The 40㎚ TiC powders were fabricated by wet milling for 4 hours from the TiCl4+C+Mg solution, and 300 ㎚ TiC particles were obtained by using titanium hydride.
참고문헌 (22)
- R. Kitakawa, , Mach. Tool., 33, pp.27~ (1989)
- H. S. Kalish, , Met. Prog., 124, pp.21~ (1983)
- D. Moskowits, "US Patent 4., 108", 694~ (1978)
- B. H. Lohse, , J. Alloys Compd., 394(1), pp.148~ (2005)
- I. N. Mihailescu, , J. Appl. Phys., 75, pp.5286~ (1994)
- Y.-L. Li, , Mater Sci Eng A., 345, pp.301~ (2003)
- D. W. Lee, , Mater Lett., 58, pp.1471~ (2004)
- J. C. Lasalvia, , Int. J. Self-Propagating High-Temperature Synth., 4, pp.43~ (1995)
- C. J. Quinn, , J. Mater. Sci., 19, pp.21~ (1984)
- Q. Zheng, , J. Mater. Sci., 39, pp.141~ (2004)
- S. C. Tjong, , Mater Sci Eng R., 29, pp.49~ (2000)
- I. J. Mccolm, , Blackie, London, 60 (1986)
- P. Ettmayer, , Int. J. of Refractory and Hard materials., 13, pp.343~ (1995)
- K. Edmund, "The Refractory Carbides", pp.1~ (1967), A series of monographs Academic Press
- Hugh, D. Pierson, "Handbook of Refractory carbides and nitrides (properties, characteristics, processing and applications)", pp.248~ (1996), Noyes Publications
- Y. Gotoh, , Mater Res Bull., 36, pp.2268~ (2001)
- J. C. Lasalvia, "Microstructure", Int. J. Self-Propagating High-Temperature Synth., 4, pp.43~ (1995)
- P. Huber, , Surface Coat Technol., 174, pp.1243~ (2003)
- T. Licko, "Control of kinetics and morphology", J. Eur. Ceram. Soc., 9, pp.219~ (1992)
- R. Koc, , J. Mater. Sci., 32, pp.3101~ (1997)
- I. N. Mihailescu, , J. Appl. Phys., 75, pp.5286~ (1994)
- I. S. Ahn, , Metals Mater. Intern., 12, pp.249~ (2006)