Layer diffusion method for growing polycrystalline and uses thereof

Layer diffusion method for growing polycrystalline and uses thereof

  • CN 85,100,695 A
  • Filed: 04/01/1985
  • Published: 01/10/1986
  • Est. Priority Date: 04/01/1985
  • Status: Abandoned Application
First Claim
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1. , a kind of in ultrahigh pressure vessel and graphite heater furnace under the formed high pressure high temperature condition, by graphite raw material, through catalysis, directly once grow into the method for polycrystalline diamond, it is characterized in that under the cooperation of certain temperature field, pressure field, in graphite heater furnace, be parallel to the upper and lower end face of process furnace center, put a catalyst sheet.Once obtain the growth form polycrystalline diamond of upper and lower symmetric two dense structures, the tiny and staggered growth of crystal grain with the slice catalyst diffusion.

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