UCL  IRIS
Institutional Research Information Service
UCL Logo
Please report any queries concerning the funding data grouped in the sections named "Externally Awarded" or "Internally Disbursed" (shown on the profile page) to your Research Finance Administrator. Your can find your Research Finance Administrator at https://www.ucl.ac.uk/finance/research/rs-contacts.php by entering your department
Please report any queries concerning the student data shown on the profile page to:

Email: portico-services@ucl.ac.uk

Help Desk: http://www.ucl.ac.uk/ras/portico/helpdesk
Publication Detail
Synthesis of cubic diamond in the graphite-magnesium carbonate and graphite-K2Mg(C03)2 systems at high pressure of 9-10 GPa region
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Taniguchi T, Dobson D, Jones AP, Rabe R, Milledge HJ
  • Publication date:
    01/01/1996
  • Pagination:
    2622, 2632
  • Journal:
    Journal of Materials Research
  • Volume:
    11
  • Issue:
    10
  • Status:
    Published
  • Print ISSN:
    0884-2914
Abstract
Cubic diamond was synthesized with two systems, (1) graphite with pure magnesium carbonate (magnesite) and (2) graphite with mixed potassium and magnesium carbonate at pressures and temperatures above 9.5 GPa, 1600°C and 9 GPa, 1650°C, respectively. At these conditions (1) the pure magnesite is solid, whereas (2) the mixed carbonate exists as a melt. In this pressure range, graphite seems to be partially transformed into hexagonal diamond. Measured carbon isotope δ13C values for all the materials suggest that the origin of the carbon source to form cubic diamond was the initial graphite powder, and not the carbonates.
Publication data is maintained in RPS. Visit https://rps.ucl.ac.uk
 More search options
UCL Researchers
Author
Dept of Earth Sciences
Author
Dept of Earth Sciences
University College London - Gower Street - London - WC1E 6BT Tel:+44 (0)20 7679 2000

© UCL 1999–2011

Search by