Paper Title:
Synthesis of Diamond Particles under Alkaline Hydrothermal Conditions
  Abstract

Very fine diamond powder (1-3 ~m) was readily sintered under hydrothermal conditions, with new bond formation occurring between the diamond particles in a l0M-NaOH solution at 573 K maintained at 1 GPa pressure, for 24 hours. This new bonding material can be formed by carbonization, from a chlorinated hydrocarbon such as dichloromethane and 1, 1,1–trichloroethane. The carbonized material forms a new bond between the hydrogenated diamond particles by the release of hydrogen chloride. Using Raman spectroscopy and hydrogenated cubic boron nitride substrates it was indisputably demonstrated that diamond was synthesized under these alkaline hydrothermal conditions. The surface morphology of the hydrothermal product on the cubic boron was similar to the new growth on the diamond substrates.

  Info
Periodical
Solid State Phenomena (Volume 114)
Edited by
Witold Lojkowski and John R. Blizzard
Pages
271-276
DOI
10.4028/www.scientific.net/SSP.114.271
Citation
N. Yamasaki, K. Yokosawa, S. Korablov, K. Tohjt, "Synthesis of Diamond Particles under Alkaline Hydrothermal Conditions", Solid State Phenomena, Vol. 114, pp. 271-276, 2006
Online since
July 2006
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Price
$32.00
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