| 摘要 |
<p>Injection nozzle (3) intended for at least one injector (2) forming part of a system (1) for producing nanometric or sub-micrometric powders in continuous flow under the action of laser pyrolysis via the interaction of a beam emitted by a laser and a flow of reagents emitted by the injector (2), characterised in that the injection nozzle (3) is formed in whole or in part of a composite material, either SiCf/SiC, Cf/C, Cf/SiC, SiCf/C or mixtures thereof. The injection nozzle according to the invention is particularly suitable for manufacturing, via laser pyrolysis, powders having a reduced concentration of impurities. The invention also relates to the injector (2) and the system (1) for producing powders incorporating the injection nozzle (3), and to the method of manufacturing the injection nozzle (3).</p> |
