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    • 1. 发明授权
    • Method for producing synthetic diamond structures
    • 生产合成金刚石结构的方法
    • US5310512A
    • 1994-05-10
    • US614313
    • 1990-11-15
    • Louis K. Bigelow
    • Louis K. Bigelow
    • C30B28/00C23C16/01C23C16/26C23C16/27C30B29/04B28B1/02B28B7/30
    • C23C16/276C23C16/01
    • Method and apparatus for producing a non-planar synthetic diamond structure of predetermined shape. A non-planar mandrel surface of the predetermined shape is provided and the mandrel surface is coated with a release substance. Synthetic diamond is deposited on the coating of release substance. The release substance is then activated to effect release of the deposited synthetic diamond structure. In a disclosed embodiment of the method of the invention a dome-shaped hollow mandrel is coated with a metal-containing substance, and synthetic diamond is deposited over the coating using a plasma jet deposition process. The metal containing substance is then heated to release the resultant diamond structure from the mandrel. In a form of the disclosed method, the metal-containing substance is a metal alloy which is highly polished before deposition of synthetic diamond thereon. The step of depositing synthetic diamond may include varying the deposition conditions during the depositing of diamond to obtain layers of diamond having different properties. In an embodiment of the apparatus of the invention, means are provided for rotating the mandrel in a deposition chamber, and means are also provided for moving the deposition system in the chamber, such as in an arc over the rotatable mandrel.
    • 用于制造具有预定形状的非平面合成金刚石结构的方法和装置。 提供了预定形状的非平面芯棒表面,并且心轴表面涂覆有释放物质。 合成金刚石沉积在释放物质的涂层上。 然后使释放物质被活化以实现沉积的合成金刚石结构的释放。 在本发明的方法的公开实施例中,圆顶状中空心轴涂覆有含金属物质,并且使用等离子体喷射沉积工艺将合成金刚石沉积在涂层上。 然后加热含金属物质以从心轴释放所得到的金刚石结构。 以所公开的方法的形式,含金属物质是在其上沉积合成金刚石之前被高度抛光的金属合金。 沉积合成金刚石的步骤可以包括在沉积金刚石期间改变沉积条件以获得具有不同性质的金刚石层。 在本发明的设备的一个实施例中,提供了用于在沉积室中旋转心轴的装置,并且还提供了用于将腔室中的沉积系统移动到诸如可旋转心轴上的电弧的装置。