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:
Sep. 22, 2015
Filed:
Apr. 29, 2010
Applicants:
Hicham Maskrot, Antony, FR;
Benoit Guizard, Créteil, FR;
Francois Tenegal, Paris, FR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 19/12 (2006.01); C04B 35/622 (2006.01); C04B 35/56 (2006.01); C01B 31/36 (2006.01); C04B 35/626 (2006.01); B82Y 30/00 (2011.01); C04B 35/563 (2006.01); C04B 35/565 (2006.01);
U.S. Cl.
CPC ...
C04B 35/6267 (2013.01); B01J 19/121 (2013.01); B82Y 30/00 (2013.01); C01B 31/36 (2013.01); C04B 35/563 (2013.01); C04B 35/565 (2013.01); C04B 2235/3821 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/3834 (2013.01); C04B 2235/421 (2013.01); C04B 2235/5409 (2013.01); C04B 2235/5454 (2013.01);
Abstract
A method is followed to prepare a powder that includes carbon, silicon and boron, the silicon being in silicon carbide form and the boron being in boron carbide and/or free boron form. The method includes contacting a carbon-based precursor, a silicon-based precursor and a boron-based precursor BX3, X being a halogen atom, to obtain a mixture of these three precursors. The resulting mixture is subjected to laser pyrolysis. The boron-based precursor BX3 is heated, prior to the contacting step and/or simultaneously with the contacting step, to a temperature higher than the condensation temperature of the precursor.