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Surface Modification by Scratching Test for Laser Cleaning WC-Co in Liquid Polymer

KANO, Seisuke

Journal of the Ceramic Society of Japan, 2006, Vol.114(1336), pp.1144-1149 [Periódico revisado por pares]

The Ceramic Society of Japan

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  • Título:
    Surface Modification by Scratching Test for Laser Cleaning WC-Co in Liquid Polymer
  • Autor: KANO, Seisuke
  • Assuntos: Laser cleaning ; Liquid polymer ; Scratch test ; Surface modification ; WC-Co
  • É parte de: Journal of the Ceramic Society of Japan, 2006, Vol.114(1336), pp.1144-1149
  • Descrição: Tungsten carbide including cobalt, WC-Co, shows good performance for high temperature toughness and is expected when applying to a high temperature mold but it is difficult to cut into ultra-fine precision because of its brittleness. In this study, WC-Co surface is treated by a pulsed laser irradiation to softening and cleaning in a machining liquid and cutting test by Vickers indenter. Under the case of Methyl n-Nonanoic acid, the surface wetness shows same behavior for with and without laser cleaning. In this case, the surface fracture by the cutting is extended and a lot of damages are generated along the cutting track for both as polished surface and laser cleaning surface. Under the case of n-Undecyl Alcohol and Palmitic acid n-Butyl Ester, the surface wetness is improved by the laser cleaning and the surface fracture is inhibited by the laser cleaning. As results of the FT-IR measurements of Palmitic acid n-Butyl Ester on the WC-Co surface, the peak position of C-H stretching mode (2900-2950 cm-1) shifted from a lower wavenumber (on the surface of as polished) to a higher wavenumber (on the laser cleaning surface). This result indicates that the Palmitic acid n-Butyl Ester interacts with the WC-Co surface and influences to the surface fracture of the laser cleaning WC-Co surface, where it is restrained by the surface adsorption.
  • Editor: The Ceramic Society of Japan
  • Idioma: Japonês;Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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