Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermal spraying of ceramic materials
- 29 A metal oxide coated particle of silicon carbide, silicon nitride, boron carbide or boron nitride is disclosed. The amount of metal oxide in particle is at least 5 wt% of 5 the total weight of the particle, wherein the metal oxide coating comprises yttrium aluminium garnet. Also disclosed is a process for the preparation of a plurality of particles mentioned above. The process comprises (1) obtaining a plurality of particles of silicon carbide, silicon nitride, boron carbide or boron nitride; (II) combining said particles of step (1) with an Al salt and an Y salt, in the presence of a 10 weak acid or weak base so as to form a hydroxide and/or carbonate coating on said particles; and (Ill) drying, such as spray drying of step (II). The method further comprises calcining and sintering the particles of step (Ill) so as to form a plurality of YAG coated particles of silicon carbide, silicon nitride, boron carbide or boron nitride.
Thermal spraying of ceramic materials
- 29 A metal oxide coated particle of silicon carbide, silicon nitride, boron carbide or boron nitride is disclosed. The amount of metal oxide in particle is at least 5 wt% of 5 the total weight of the particle, wherein the metal oxide coating comprises yttrium aluminium garnet. Also disclosed is a process for the preparation of a plurality of particles mentioned above. The process comprises (1) obtaining a plurality of particles of silicon carbide, silicon nitride, boron carbide or boron nitride; (II) combining said particles of step (1) with an Al salt and an Y salt, in the presence of a 10 weak acid or weak base so as to form a hydroxide and/or carbonate coating on said particles; and (Ill) drying, such as spray drying of step (II). The method further comprises calcining and sintering the particles of step (Ill) so as to form a plurality of YAG coated particles of silicon carbide, silicon nitride, boron carbide or boron nitride.
Thermal spraying of ceramic materials
ESPALLARGAS NURIA (Autor:in) / MUBAROK FAHMI (Autor:in)
07.05.2020
Patent
Elektronische Ressource
Englisch