The permeation behavior of deuterium through 1Cr18Ni9Ti stainless steel with TiN+TiC-TiN multiple films
Journal Article
·
· Fusion Science and Technology
- China Academy of Engineering and Physics, Mianyang, Sichuan (China)
The prevention of tritium losses via permeation through structure components is an important issue in fusion technology. The production of thin layers on materials with low diffusivity and/or low surface recombination constants (so-called permeation barriers) seems to be the most practical method to reduce or hinder the permeation of tritium through materials. TiN+TiC+TiN multiple films are deposited on the surface of 1Cr18Ni9Ti stainless steel by ion-beam assisted deposition technology. The characteristics of films are tested by XPS ASEM and XRD, which shows that the film are compact and uniform with a thickness of about 15 μm, and have a good adherence with the substrate below 773 K. The diffraction peaks in the XRD patterns for TiC and TiN are broadened, implying that the multiple films are deposited on the surface of 1Cr18Ni9Ti stainless steel. Meanwhile, the C-H bonded CH{sub 4}-appears in the infrared spectra of multiple films, suggesting that the CH{sub 4}- is in a static state, so hydrogen atom cannot migrate from the site bonded with carbon to a neighboring site. The measured deuterium permeability in 1Cr18Ni9Ti stainless steel coated with multiple films is 2-3 orders of magnitude lower than that of pure 1Cr18Ni9Ti stainless steel substrate from 473 K to 773 K. However, this barrier is partly destroyed above 773 K.
- OSTI ID:
- 22429788
- Journal Information:
- Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 3 Vol. 67; ISSN 1536-1055
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nucleation and growth mechanisms in ion-plated TiN films on steel substrates
Thermal and mechanical testings of TiC and TiN coating materials with Mo substrates
Preparation and characterization of high-quality TiN films at low temperature by filtered cathode arc plasma
Conference
·
Sat Dec 31 23:00:00 EST 1988
·
OSTI ID:5650903
Thermal and mechanical testings of TiC and TiN coating materials with Mo substrates
Conference
·
Wed Dec 31 23:00:00 EST 1980
· Proc. Symp. Eng. Probl. Fusion Res.; (United States)
·
OSTI ID:6229312
Preparation and characterization of high-quality TiN films at low temperature by filtered cathode arc plasma
Journal Article
·
Sun Oct 31 23:00:00 EST 2004
· Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films
·
OSTI ID:20636783