Fine grain diamond workpieces
AssigneeGeneral Electric Company
InventorsThomas R. Anthony, James F. Fleischer
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Abstract
Diamond workpieces comprised of polycrystalline CVD diamond having a grain size of less than 1 .mu.m are provided. These diamond workpieces are more resistant to wear and are more conducive to polishing than conventional diamond workpieces having large-grain diamonds. Three-dimensional workpieces such as water jet nozzles and water jet mixing tubes comprised of the small-grain diamonds provide particular advantage in that they can be easily finished to a final size and shape.
Claims4
A diamond workpiece with a tubular configuration which varies in three dimensions comprised of a homogeneous self supporting single layer of polycrystalline CVD diamond having a grain size of less than 1 .mu.m and a thickness in the range of 150 to 2000 .mu.m wherein said single layer of polycrystalline diamond has no Raman signature at 1332 cm.sup.-1.
Dependencies are inferred from the claim text.