Method of producing powder with composite grains and the device for carrying out said method
AssigneeAPIT Corp. S.A.
InventorsPavel Koulik, Evguenii Petrov, Mark Ivanov
Life of this patent
Estimating the term…
Abstract
A method of producing powder formed of composite grains comprising a kernel and one or more surface layers. The inventive method comprises the following steps: mixing the grain kernels with a plasmochemical treatment gas; making said kernel/treatment gas mixture flow through a main plasma reactor; and generating a uniform plasma essentially at atmospheric pressure in a treatment region of the main reactor in order to create a plasmochemical reaction between the treatment gas and the surfaces of the kernels so that surface layers form on said surfaces while the mixture flows through the reactor.
Claims25
A method for producing a powder made of composite grains having a core and one or several surface layers, includes the steps of:
- mixing grain cores with a plasmochemical treatment gas, passing through a main plasma reactor a flow of the mixture of the cores and of the treatment gas, and generating a uniform plasma substantially at the atmospheric pressure, in a treatment region of the main reactor, in order to produce a plasmochemical reaction between the treatment gas and the surfaces of the cores, so as to form surface layers thereupon, as said mixture flows through the reactor.
Dependencies are inferred from the claim text.