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The redox potential of boron nitride and implications for its use as a crucible material in experimental petrologyThe suitability of boron nitride for use as a crucible material in silicate and oxygen-bearing metal sulfide systems has been investigated. Boron nitride is unsatisfactory for use with many silicate systems because its presence in combination with a source of oxygen establishes the oxygen fugacity at values below that of the assemblage quartz + fayalite + iron, reducing transition metal ions such as Ni(2+) and Fe(2+) to the metallic state. B2O3, resulting from the oxidation of BN, acts as a flux to promote formation of melt.
Document ID
19820051338
Document Type
Reprint (Version printed in journal)
Authors
Wendlandt, R. F.
(Lunar and Planetary Institute, Houston, TX; U.S. Geological Survey, Reston VA, United States)
Huebner, J. S.
(U.S. Geological Survey Reston, VA, United States)
Harrison, W. J.
(Carnegie Institution of Washington Washington, DC, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Publication Information
Publication: American Mineralogist
Volume: 67
Subject Category
Earth Resources And Remote Sensing
Accession Number
82A34873
Funding Number(s)
CONTRACT_GRANT: NASW-3389
CONTRACT_GRANT: NASA ORDER T-2356-A
Distribution Limits
Public
Copyright
Other

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