Preparation of Diamond Structured Carbon by Soft hydrothermal Processing

Abstract

Diamond has unique physical and chemical properties. However, due to high costs and limited sizes the both synthetic and natural single crystals are used only to selected applications. Bulk diamond ceramics has series advantages in comparison with single crystals but process sintering of diamond polycrystals usually requires tougher conditions even than common diamond synthesis methods. Alternatively our results demonstrate that diamond can be synthesized and/or sintered at moderate hydrothermal conditions.