A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
VERFAHREN ZUR HERSTELLUNG VON NICHT OXIDISCHEN, KERAMISCHEN PULVERN
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.
VERFAHREN ZUR HERSTELLUNG VON NICHT OXIDISCHEN, KERAMISCHEN PULVERN
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.
VERFAHREN ZUR HERSTELLUNG VON NICHT OXIDISCHEN, KERAMISCHEN PULVERN
PROCESS FOR THE MANUFACTURE OF NON-OXIDE CERAMIC POWDERS
PROCÉDÉ DE FABRICATION DE POUDRES CÉRAMIQUES NON-OXYDES
DASH APURV (author) / GONZALEZ JESUS (author) / VASSEN ROBERT (author) / GUILLON OLIVIER (author)
2022-09-28
Patent
Electronic Resource
German
VERFAHREN ZUR HERSTELLUNG VON NICHT OXIDISCHEN, KERAMISCHEN PULVERN
| European Patent Office | 2019
Verfahren zur Herstellung von nicht oxidischen, keramischen Pulvern
| European Patent Office | 2019
VERFAHREN ZUR HERSTELLUNG EINES RINGÄHNLICHEN OXIDISCHEN FORMKÖRPERS
| European Patent Office | 2022
VERFAHREN ZUM SINTERN VON METALLEN UND NICHT OXIDISCHEN KERAMIKEN
| European Patent Office | 2021
VERFAHREN ZUR HERSTELLUNG VON PULVERN AUS ALKALISALZEN VON SILANOLEN
| European Patent Office | 2017