| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a single crystal diamond tool which is excellent in the chipping resistance and the wear resistance, and is stable and small in the dispersion of properties. <P>SOLUTION: The surface of a single crystal diamond material, the surface being stressed by a tensile stress, is coated with a high quality diamond film having no impurities by the vapor deposition method. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
