Abstract:

Industrial single crystal diamonds were synthesized from FeNi powder catalyst in a Chinatype cubic anvil highpressure apparatus. In a series of experiments, we successfully synthesized highquality cubic, cubicoctahedral and octahedral diamond single crystals. From the morphology of the synthesized diamond, we found the {111} plane obeyed the  twodimensional layer growth mechanism. The Mssbauer spectra indicate that the main components of the impurity are FeNi alloy in the diamond.

Key words: diamond, catalyst, morphology