Study of the UHV compatibility of selected ferritic stainless steels for application in vacuum systems of future gravitational wave detectors
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866910920225062912 |
|---|---|
| author | Scarcia, Carlo Bregliozzi, Giuseppe Chiggiato, Paolo Wevers, Ivo |
| author_facet | Scarcia, Carlo Bregliozzi, Giuseppe Chiggiato, Paolo Wevers, Ivo |
| contents | Next-generation gravitational wave detectors (GWDs) such as the Cosmic Explorer and Einstein Telescope demand extensive ultra-high vacuum systems, making material cost and performance critical considerations. This study investigates the potential of ferritic stainless steel as a cost-effective alternative to the commonly used austenitic stainless steel for UHV components, focusing on the analysis of outgassing rates pre and post-bakeout at 80°C and 150°C for 48 hours. The tested ferritic stainless steels exhibit significantly lower hydrogen content than standard AISI 304L steel. After bakeout, the hydrogen outgassing rates - measured down to 10$^{-15}$ mbar l s$^{-1}$ cm$^{-2}$ - are three orders of magnitude lower than those of similarly conditioned austenitic stainless steels. These results highlight ferritic stainless steel as a promising, economical, and high-performance candidate for future GWDs vacuum systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_18823 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Study of the UHV compatibility of selected ferritic stainless steels for application in vacuum systems of future gravitational wave detectors Scarcia, Carlo Bregliozzi, Giuseppe Chiggiato, Paolo Wevers, Ivo Instrumentation and Methods for Astrophysics Next-generation gravitational wave detectors (GWDs) such as the Cosmic Explorer and Einstein Telescope demand extensive ultra-high vacuum systems, making material cost and performance critical considerations. This study investigates the potential of ferritic stainless steel as a cost-effective alternative to the commonly used austenitic stainless steel for UHV components, focusing on the analysis of outgassing rates pre and post-bakeout at 80°C and 150°C for 48 hours. The tested ferritic stainless steels exhibit significantly lower hydrogen content than standard AISI 304L steel. After bakeout, the hydrogen outgassing rates - measured down to 10$^{-15}$ mbar l s$^{-1}$ cm$^{-2}$ - are three orders of magnitude lower than those of similarly conditioned austenitic stainless steels. These results highlight ferritic stainless steel as a promising, economical, and high-performance candidate for future GWDs vacuum systems. |
| title | Study of the UHV compatibility of selected ferritic stainless steels for application in vacuum systems of future gravitational wave detectors |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2504.18823 |