| 摘要 |
High pressure synthesis of various crystals such as diamond, cBN and the like can be carried out using temperature gradient methods wherein the reaction assembly (210) is oriented substantially perpendicular to gravity (224) during application of high pressure. Orienting the reaction assembly (210) in this manner can avoid detrimental effects of gravity on the molten catalyst, e.g., convection, hence increasing available volumes for growing high quality crystals. Multiple reaction assemblies can be oriented in series or parallel, each reaction assembly having one or more growth cells suitable for growth of high quality crystals. The unique split die design of the present invention allows for particularly effective results and control of temperature and growth conditions for individual crystals. |
