Invention Grant
- Patent Title: Method for producing non-oxide ceramic powders
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Application No.: US16622312Application Date: 2018-06-07
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Publication No.: US11542204B2Publication Date: 2023-01-03
- Inventor: Apurv Dash , Jesus Gonzalez , Robert Vassen , Olivier Guillon
- Applicant: FORSCHUNGSZENTRUM JUELICH GmbH
- Applicant Address: DE Juelich
- Assignee: FORSCHUNGSZENTRUM JUELICH GmbH
- Current Assignee: FORSCHUNGSZENTRUM JUELICH GmbH
- Current Assignee Address: DE Juelich
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: DE102017006658.2 20170713
- International Application: PCT/DE2018/000178 WO 20180607
- International Announcement: WO2019/011358 WO 20190117
- Main IPC: C04B35/626
- IPC: C04B35/626 ; C04B35/56

Abstract:
The invention relates to a method for producing a non-oxide ceramic powder comprising a nitride, a carbide, a boride or at least one MAX phase with the general composition Mn+1AXn, where M=at least one element from the group of transition elements (Sc, Ti, V, Cr, Zr, Nb, Mo, Hf and Ta), A=at least one A group element from the group (Si, Al, Ga, Ge, As, Cd, In, Sn, Tl and Pb), X=carbon (C) and/or nitrogen (N) and/or boron (B), and n=1, 2 or 3. According to the invention, corresponding quantities of elementary starting materials or other precursors are mixed with at least one metal halide salt (NZ), compressed (pellet), and heated for synthesis with a metal halide salt (NZ). The compressed pellet is first enveloped with another metal halide salt, compressed again, arranged in a salt bath and heated therewith until the melting temperature of the salt is exceeded. Optionally, melted silicate can be added, which prevents the salt from evaporating at high temperatures. Advantageously, the method can be carried out in the presence of air.
Public/Granted literature
- US20210147301A1 Method for Producing Non-Oxide Ceramic Powders Public/Granted day:2021-05-20
Information query
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