| 摘要 |
<p>A method for making diamond material comprises providing a deposition chamber; placing a substrate in said deposition chamber; sealing and evacuating said deposition chamber; admitting to said deposition chamber gases suitable for diamond deposition; heating said substrate to a diamond deposition temperature; igniting and maintaining a plasma adjacent to a growth surface of said substrate such that said plasma extends no further than about 5mm from said growth surface of said substrate; and maintaining said plasma during a diamond deposition time period.</p> |
