| 摘要 |
The invention relates to a method for determining a distribution profile and, in particular, for distributing a powder by settling according to specific surface or size, characterised in that it comprises: a) generating, in a main chamber and by means of an electric discharge between two top (1) and bottom (10) electrodes, a cold plasma at a pressure P of less than 100 Pa and, specifically, between 10 Pa and 100 Pa, and injecting said powder sample (2); and b) extinguishing the plasma and allowing the particles of the sample (2) to settle, at said pressure P and by means of gravity, through an opening (11) of the bottom electrode (10), by passing the particles of the sample through at least one barrier sensitive to a property of the particles of the powder in order to generate a curve constituting a so-called distribution profile. |
