Improved razors and razor blades and processes for producing razor blades or similar cutting tools with sharp and durable cutting edges, by hard-carbon coating of blades with amorphous diamond, preferably using a filtered cathodic arc plasma source. A coating of amorphous diamond having at least 40 percent sp3 carbon bonding, a hardness of at least 45 gigapascals and a modulus of at least 400 gigapascals is applied to the sharpened edge of a substrate. The substrate may be mechanically honed, and there is no interlayer between the substrate and the amorphous diamond coating. The coating imparts stiffness and rigidity to a thin blade while maintaining a high aspect ratio.
申请公布号
US5940975(A)
申请公布日期
1999.08.24
申请号
US19970877137
申请日期
1997.06.17
申请人
DECKER, THOMAS G.;LUNDY, GREGORY P.;PAPPAS, DAVID L.;WELTY, RICHARD P.;PARENT, C. ROBERT
发明人
DECKER, THOMAS G.;LUNDY, GREGORY P.;PAPPAS, DAVID L.;WELTY, RICHARD P.;PARENT, C. ROBERT