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Journal of crystal growth, 2014-06, Vol.395, p.1-4
2014
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Details

Autor(en) / Beteiligte
Titel
Spontaneous growth of diamond from MnNi solvent-catalyst using opposed anvil-type high-pressure apparatus
Ist Teil von
  • Journal of crystal growth, 2014-06, Vol.395, p.1-4
Ort / Verlag
Amsterdam: Elsevier B.V
Erscheinungsjahr
2014
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
  • In this paper an overview of the application of opposed anvil-type high-pressure and high-temperature apparatus for spontaneous growth of diamond crystals by solvent-catalyst technique is presented. The process makes use of a molten Mn47Ni53 catalyst to initiate the graphite–diamond transformation reaction. The pressure and temperature requirements to obtain reproducible spontaneous diamond crystallization were around 52.5–54kbar and 1270–1320°C. The crystals had well-shaped cubo-structured morphology with the {100} and {111} faces and grain sizes of 0.2–0.5mm. This work can stimulate future experimental exploration of spontaneous diamond crystallization by using other solvent-catalyst metals. [Display omitted] •Using an opposed anvil-type high-pressure apparatus in growth of diamond.•Using alternating sequence of Mn47Ni53 solvent-catalyst and graphite layers.•Obtained diamond were of 0.2–0.5mm in size with well-shaped cubo-structured morphology.

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