公开(公告)号：US20250091885A1

公开(公告)日：2025-03-20

申请号：US18728239

申请日：2023-01-10

Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN

Inventor： Mangesh Ramesh AVHAD ,  Laurie SAN-MIGUEL ,  Thibault CHAMPION

IPC: C01B35/04 ,  C04B35/58

Abstract: A method for manufacturing a diboride powder MB2 by dry route where M is a chemical element belonging to group 4 of the periodic table, from the reduction of an oxide MO2 of the element M according to the balance reaction MO2+B2O3+yR+xA2O→MB2+A2xRYO5+x, wherein R is a reducing element selected from Al, Si, Ti, Zr, Hf, Y, Sc, and the lanthanides and A2O is an oxide of alkali element A.

公开(公告)号：US20240409420A1

公开(公告)日：2024-12-12

申请号：US18698269

申请日：2022-10-04

Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN

Inventor： Mangesh Ramesh AVHAD ,  Emmanuel NONNET ,  Laurie SAN-MIGUEL

IPC: C01B35/04 ,  C04B35/58

Abstract: A method for synthesizing a TiB2 powder includes the reduction of titanium oxide by carbon in the presence of a source of boron, the method includes heating a mixture of a carbon source, a boron carbide powder whose median particle diameter is between 5 and 100 microns and a powder of titanium oxide whose median particle diameter is between 5 and 80 microns, the mixture being placed in an enclosure under an inert gas sweep flow rate between 0.5 and 10 L/min/m/m3 of enclosure at a temperature of between 1500° C. and 2000° C., as well as the TiB2 powder obtained by such a method.