Reaktives Plasmaspritzen in kontrollierter Stickstoffatmosphäre zur Herstellung nitridhaltiger Beschichtungen
Reaktives Plasmaspritzen in kontrollierter Stickstoffatmosphäre zur Herstellung nitridhaltiger Beschichtungen
Reactive plasma spraying combines synthesis and materials deposition in a single process step. Nitride compounds are of special interest as they are characterized by good wear and corrosion resistance. Reaction behaviour of silicon, titanium, chromium and an austenitic stainless steel under nitrogen...
| Personal Name(s): | Eckhardt, T. (Corresponding author) |
|---|---|
| Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
| Imprint: |
Jülich
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag
1996
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| Physical Description: |
II, 130 p. |
| Document Type: |
Report Book |
| Research Program: |
ohne Topic |
| Series Title: |
Berichte des Forschungszentrums Jülich
3307 |
| Link: |
OpenAccess OpenAccess |
| Publikationsportal JuSER |
|
Reactive plasma spraying combines synthesis and materials deposition in a single process step. Nitride compounds are of special interest as they are characterized by good wear and corrosion resistance. Reaction behaviour of silicon, titanium, chromium and an austenitic stainless steel under nitrogen containing atmosphere is investigated. The influence of the parameters nitrogen chamber pressure, substrate temperature, reaction time and powder constitution on the formation of silicon nitride is determined. An in situ heat treatment is introduced which provides extended reaction time between the metallic component and gaseous atmosphere. Titanium, chromium and austenitic stainless steel are sprayed under varying chamber pressure and with the assistance of a plasma reactor. From the comparison between these selected materials it is shown that high nitrogen solubility and good meltability are advantageous. Taking up nitrogen in soluble form and/or as a nitride improves microhardness of these coatings in all cases. Summarising the results reactive plasma spraying is a very complex process that leads to heterogeneous deposits as a consequence of non-uniform behaviour of the powder particles. This method can be used to introduce varying amounts of nitrogen in metal coatings or to produce metallnitride composites. |