다이아몬드 입자에 형성된 중간층이 다이아몬드 공구 성능에 미치는 영향
Effect of Intermediate Layer Coated Diamond Particles on Performance of Diamond Tool
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초록
In order to improve the performance of electrodeposited diamond-nickel composite, surface modificationof diamond particles was carried out using powder immersion reaction assisted coating (PIRAC). Titaniumand chromium were selected as coating elements, which are known as carbide former. With respect to thepowder elements, various phases were formed on diamond; metallic Ti and TiC for Ti powder, Cr3C2 forCr powder, and TiC and Cr3C2 for Ti-Cr mixed powder. Surface modified diamond particle showed higherspecific surface area, especially Ti coating induced considerable increase of specific surface area. The increaseof specific surface area suggests increase of surface roughness, and that was confirmed by surface observationusing FE-SEM. In addition, wear properties of diamond-nickel composite including surface modified diamondswere improved, and Ti coated diamond showed the highest performance. The wear property of diamondnickelcomposite is dependent on adhesion strength between diamond particle and nickel layer. Therefore,surface modification of diamond particle by PIRAC increasing surface roughness is effective to improve theproperties of diamond-nickel composite.
Abstract
In order to improve the performance of electrodeposited diamond-nickel composite, surface modification of diamond particles was carried out using powder immersion reaction assisted coating (PIRAC). Titanium and chromium were selected as coating elements, which are known as carbide former. With respect to the powder elements, various phases were formed on diamond; metallic Ti and TiC for Ti powder, Cr3C2 for Cr powder, and TiC and Cr3C2 for Ti-Cr mixed powder. Surface modified diamond particle showed higher specific surface area, especially Ti coating induced considerable increase of specific surface area. The increase of specific surface area suggests increase of surface roughness, and that was confirmed by surface observation using FE-SEM. In addition, wear properties of diamond-nickel composite including surface modified diamonds were improved, and Ti coated diamond showed the highest performance. The wear property of diamondnickel composite is dependent on adhesion strength between diamond particle and nickel layer. Therefore,surface modification of diamond particle by PIRAC increasing surface roughness is effective to improve the properties of diamond-nickel composite.
참고문헌 (24)
- C. R. Lin, , Surf. Coat. Technol, 110, pp.19~ (1998)
- L. W. de Resende, , Diam. Relat. Mater, 10, pp.332~ (2001)
- H. K. Tonshoff, , Diam. Relat. Mater, 11, pp.742~ (2002)
- E. C. Lee, , Surf. Coat. Technol, 148, pp.234~ (2001)
- J. G. Ahn, , Surf. Coat. Technol, 201, pp.3793~ (2006)
- Y. S. Liao, , Wear, 157, pp.325~ (1992)
- T. J. Chen, , Int. J. Mach. Tools Manuf, 49, pp.470~ (2009)
- Y. S. Liao, , Wear, 157, pp.325~ (1992)
- H. Tokura, , J. Mater. Sci, 24, pp.2231~ (1989)
- E. Breval, , J. Am. Ceram. Soc, 83, pp.2106~ (2000)
- Y. H. Wang, , J. Mater. Process. Technol, 129, pp.369~ (2002)
- C. H. Li, , Surf. Coat. Technol, 150, pp.163~ (2002)
- X. Xu, , Int. J. Refract. Met. Hard Mater, 25, pp.244~ (2007)
- X. Yin, , Mater. Sci. Eng. A, 396, pp.107~ (2005)
- E. Y. Gutmanas, , Mater. Sci. Eng. A, 157, pp.233~ (1992)
- P. Mogilevsky, , J. Eur. Ceram. Soc, 15, pp.527~ (1995)
- H. Schäfer, "Chemical Transport Reactions" (1964), Wiley
- I. Mashal, , Surf. Coat. Technol, 200, pp.3561~ (2006)
- X. H. Chen, , Trans. Nonferrous Met. Soc. China, 19, pp.1348~ (2009)
- A. R. Castle, , Int. Mater. Rev., 44(2), pp.37~ (1999)
- Y. Zhu, , Appl. Surf. Sci, 171, pp.143~ (2001)
- J. Wan, , Comput. Mater. Sci, 23, pp.73~ (2002)
- Y. I. Nikitin, , Journal of Superhard Materials, 30(1), pp.58~ (2008)
- B. Jaúregui-Beloqui, , J. Adhes. Sci. Technol, 13, pp.695~ (1996)