The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2013
Filed:
Jan. 29, 2008
Valery N. Khabashesku, Houston, TX (US);
Vladimir P. Filonenko, Troistk Moskovskaya Oblast, RU;
Valeri A. Davydov, Troistk Moskovskaya Oblast, RU;
Valery N. Khabashesku, Houston, TX (US);
Vladimir P. Filonenko, Troistk Moskovskaya Oblast, RU;
Valeri A. Davydov, Troistk Moskovskaya Oblast, RU;
William Marsh Rice University, Houston, TX (US);
Abstract
According to some embodiments, a method of preparing a superhard material involves using mixtures of boron with carbon nitride of CNstoichiometry as precursors. The CNmay be nanospherical. The result of chemical interaction of these components is the formation of new ternary compound B—C—N compound with a cubic structure. According to some embodiments, the composition is BCN, where x is about 0.5. According to some embodiments, the composition is BCN, where x is about 0.2. According to some embodiments, the compound has a unit cell parameter a=3.645±0.005 Å. According to some embodiments, the unit cell parameter a is about 3.655 Å. Synthesis is carried out under the conditions of thermodynamic stability of diamond at pressures higher that 6.0 GPa and temperatures above 1000° C. The starting components are taken according to the following ratio: boron—20-60 wt. %, CN—40-80 wt. %.