On the Formation of Nitrogen Oxides During the Combustion of ...

3 Experiments on Droplet Array Combustion
Chapter C.2 also provides results on the application of the coating by opposing
coated to untreated sample cylinders. This surface treatment particularly
increases the resistance to corrosion, reduces interactions between the steel
surface and active compounds, and inhibits coking. Furthermore, extensive
tests confirmed faster pump-down times due to a significantly reduced outgassing
and an improved moisture uptake (wet-up) and release (dry-down) by
at least one order of magnitude. The coating is applied on the surface to a
depth of 0.1µm, and thus incorporated into the lattice of the host substrate by
forming a flexible, non-adsorptive layer. That depth does not interfere with
the mechanical performance of the coated components; still, it imparts rainbow
colors on the treated surfaces [294, 296, 351, 406].
Regarding the sounding rocket campaign, access for the evacuation of the gas
sample cylinders by a turbomolecular pump was realized through a late access
port in the TEXUS module. In order to fulfill the scientific requirements,
a minimum leakage rate of