Results 141 to 150 of about 476 (172)

Development of tritium permeation barriers on Al base in Europe

Journal of Nuclear Materials, 1999
Abstract The development of the water cooled lithium lead (WCLL) DEMO fusion reactor requires the production of a material capable of acting as a tritium permeation barrier (TPB). In the DEMO blanket reactor permeation barriers on the structural material are required to reduce the tritium permeation from the Pb–17Li or the plasma into the cooling ...
G Benamati, C Chabrol, A Perujo, E Rigal, H Glasbrenner   +4 more
openaire   +1 more source

Recent Progress in Evaluation of Tritium Permeation in Fusion Fuel System and Development of Permeation Barrier

Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan, 2009
Nagasaka, Takuya, Kondo, Masatoshi, Sagara, Akio, Muroga, Takeo, Hishinuma, Yoshimitsu, Tanaka, Teruya, Li, Yanfen, Ohshima, Tomoko, Zhang, Donxun, Watanabe, Takashi, Fukada, Satoshi   +10 more
  +12 more sources

Deuterium permeation behavior of tritium permeation barrier coating containing carbide nanoparticles

Fusion Engineering and Design, 2017
Abstract Y 2 O 3 coatings containing Cr 3 C 2 nanoparticles have been prepared on reduced activation ferritic/martensitic steel F82H substrates by metal organic decomposition with dip-coating technique, and their deuterium permeation behaviors have been investigated.
Jumpei Mochizuki, Seira Horikoshi, Yasuhisa Oya, Takumi Chikada   +3 more
openaire   +1 more source

Tritium permeation characterization of Al2O3/FeAl coatings as tritium permeation barriers on 321 type stainless steel containers

Journal of Nuclear Materials, 2016
Abstract Accurate tritium transport properties of prospective tritium permeation barriers (TPBs) are essential to tritium systems in fusion reactors. By passing a temperature and rate-controlled sweeping gas over specimen surfaces to carry the permeated tritium to an ion chamber, the gas-driven permeation of tritium has been performed on 321 type ...
Feilong Yang, Xin Xiang, Guangda Lu, Guikai Zhang, Tao Tang, Yan Shi, Xiaolin Wang   +6 more
openaire   +1 more source

SiC Coating by RF Sputtering as Tritium Permeation Barrier for Fusion Blanket

Fusion Science and Technology, 2007
SiC coating is formed on the reduced activation martensitic steel JLF-1 by radio frequency sputtering. The coating thickness decreases with increased deposition temperature and increases with increased deposition time. The atomic ratio of Si and C nears 1:1 in coating, while oxygen fraction exists.
Yao, Z., Suzuki, A., Levchuk, D., Terai, T.   +3 more
openaire   +2 more sources

LIBRETTO-3: modelling tritium extraction/permeation and evaluation of permeation barriers under irradiation

Journal of Nuclear Materials, 1996
Abstract Permeation barriers are required in order to limit the size and cost of the detritiation plants for future fusion reactor blankets of the water-cooled Pb 17Li type. The LIBRETTO irradiations were performed to evaluate the efficiency of permeation barriers under high flux reactor (HFR) conditions.
Luis A. Sedano, Rainer Conrad, Michael A. Fütterer, Roberto May, Ramon Viola, Xavier Dies   +5 more
openaire   +1 more source

Compatibility of tritium permeation barrier coatings with ceramic breeder pebbles

Corrosion Science, 2021
Abstract Reduced activation ferritic/martensitic steel F82H samples with tritium permeation barriers were annealed in contact with ceramic breeder pebbles at 550 °C and 700 °C for up to 32 days under purge gas. Cr2O3-formed F82H rapidly reacted to form three layers at 550 °C, and pure Fe projections grew with annealing time.
Takumi Chikada, Matthias H.H. Kolb, Hikari Fujita, Kazuki Nakamura, Keisuke Kimura, Marcin Rasinski, Yoshimitsu Hishinuma, Keisuke Mukai, Regina Knitter   +8 more
openaire   +2 more sources

Preparation of yttrium oxide coating by MOCVD as tritium permeation barrier

Fusion Engineering and Design, 2015
Abstract Yttrium oxide coatings were deposited on 316L substrate using metal organic chemical vapor deposition (MOCVD) technique with yttrium β-diketonates organometallic Y(tmhd)3 as precursor. The different microstructures were obtained by annealing coatings at 700 °C or as-deposited.
Yunyi Wu, Di He, Hua Zhang, Shuai Li, Xiaopeng Liu, Shumao Wang, Lijun Jiang   +6 more
openaire   +1 more source

Status of tritium permeation barrier development on austenitic structural alloys

Journal of Nuclear Materials, 1984
Abstract A literature review and recent results on the development of tritium permeation barriers is presented. A standard pretreatment and oxidation procedure for some austenitic chromium containing alloys was established and the progress achieved has been made visible.
D. Stöver, H.P. Buchkremer, R. Hecker, H.J. Levers   +3 more
openaire   +1 more source

Tritium permeation barrier based on self-healing composite materials

Fusion Engineering and Design, 2010
Abstract Pores and cracks in ceramic coatings is one of the most important problems to be solved for the thermally sprayed tritium permeation barriers (TPBs) in fusion reactor. In this work, we developed a self-healing composite coating to address this problem.
Jifeng Gao, Dan Zhang, Jinping Suo
openaire   +1 more source