Abstract
Patent (28/1) of De Beers Industrial Diamond Division (Proprietary) Ltd. (South Africa) aims at producing a hard material, essentially consisting of BxCyNz in tetrahedron form, whereby x, y and z may have any value greater than 1 or 1 and x = z, but not equal with y. The hard material is obtained by exposing boron, nitrogen and carbon containing materials to conditions, permitting the formation of the hard material, for example under a pressure of min. 50 kbar and a temperature between 1300 and 2000°C.
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© 1986 ECSC, EEC, EAEC, Brussels and Luxembourg
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Terpstra, M. (1986). Materials Predominantly Based on Boron. In: Terpstra, M. (eds) Materials for Refractories and Ceramics. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4325-4_5
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DOI: https://doi.org/10.1007/978-94-009-4325-4_5
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8422-2
Online ISBN: 978-94-009-4325-4
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