Results 11 to 20 of about 476 (172)

THIN NITRIDE LAYERS AS PERMEATION BARRIERS [PDF]

Acta Polytechnica CTU Proceedings, 2018
Permeation barriers represent one of the crucial fields in materials development for thermonuclear fusion. Primary objective of the barriers is to suppress the permeation of hydrogen isotopes (mainly tritium) from future thermonuclear fusion facilities ...
Jakub Veverka, Jiri Matejicek, Frantisek Lukac, David Pospisil, Ladislav Cvrcek, Vincenc Nemanic   +5 more
doaj   +5 more sources

Microstructure change and deuterium permeation behavior of ceramic-metal multi-layer coatings after immersion in liquid lithium-lead alloy

Nuclear Materials and Energy, 2018
For the establishment of liquid tritium breeding concepts, static lithium-lead corrosion tests for single-layer erbium oxide coatings and erbium oxide-metal multi-layer coatings were carried out, followed by deuterium permeation measurements.
Seira Horikoshi, Moeki Matsunaga, Jumpei Mochizuki, Hikari Fujita, Yoshimitsu Hishinuma, Yasuhisa Oya, Takumi Chikada   +6 more
doaj   +2 more sources

Hydrogen isotope permeation behavior in a blanket module using a novel gas-driven permeation device

Nuclear Fusion
The tritium permeation barrier (TPB) on reduced activation ferritic/martensitic steel is critical for ensuring both tritium self-sustainability and safety in fusion reactors. Evaluating the performance of TPB-containing modules with complex geometries is
Jun Yi, Yu-Ping Xu, Pei-Song Du, Xin Shen, Yi-Ming Lyu, Wan-Jing Wang, Hai-Shan Zhou, Guang-Nan Luo   +7 more
doaj   +2 more sources

Microstructure evolution of γ-Al2O3/FeAl tritium permeation barrier coatings under 6.4 MeV Fe3+ ion irradiation

Nuclear Materials and Energy
γ-Al2O3/FeAl coatings for tritium permeation barrier (TPB) application in fusion reactors were fabricated via electro-chemical deposition and selective oxidation. The TPB coatings consisted of a γ-Al2O3 scale (200 nm), an upper interlayer of FeAl (20 μm)
Fengcheng Liu, Hucheng Yu, Xiaoou Yi, Shunjie Deng, Shulei Li, Kiyohiro Yabuuchi, Somei Ohnuki   +6 more
doaj   +2 more sources

First-principles calculations for the effect of irradiation-induced point defects on the hydrogen dissolution and diffusion in γ-Al2O3

Nuclear Materials and Energy
FeAl/Al2O3 is considered the most promising candidate material for tritium permeation barrier (TPB) due to numerous advantages. γ-Al2O3 phase structure is commonly found in FeAl/Al2O3, and is crucial to its effectiveness.
Xin-Dong Pan, Xiao-Chun Li, Jing Wang, Rongmei Yu, Chunying Pu, Hai-Shan Zhou, Guang-Nan Luo   +6 more
doaj   +2 more sources

A Study on the Radiation Resistance Performance of an Al₂O₃ Composite Tritium Permeation Barrier and Zirconium-Based Tritium-Absorbing Materials. [PDF]

Materials (Basel)
The permeation of tritium from secondary neutron source rods in nuclear power plants presents a significant and unavoidable safety concern both for internal equipment and the external environment. This study primarily explores two feasible strategies for
Li C, Shu R, Li Y, Wang L, Fang R, Nie L, Ren Q, Liu X, Hu J, Zhang S.   +9 more
europepmc   +2 more sources

Effect of Mechanical Damage on Tritium Permeability Resistance of FeAl/Al₂O₃ Coating on 316L Stainless Steel. [PDF]

Materials (Basel)
Depositing a tritium permeation barrier on the surface of materials is a key method for reducing tritium permeability. During actual operational processes, the surface of the tritium permeation barrier may experience mechanical damage, such as spalling ...
Li Y, Nie L, Meng F, Hu H, Zong S, Hong Z, Wang L, Li C, Ren Q, Hu J.   +9 more
europepmc   +2 more sources

Hydrogen Permeation in Fusion Materials and the Development of Tritium Permeation Barriers

Plasma and Fusion Research, 2020
Fuel retention and hydrogen permeation in the first wall of future fusion devices are crucial factors. Due to safety issues and in order to guarantee an economical reactor operation, tritium accumulation into reactor walls and permeation through walls have to be estimated and prevented.
HOUBEN, Anne, RASINSKI, Marcin, LINSMEIER, Christian   +2 more
openaire   +3 more sources

Recent Progress in Functional Nanomaterials towards the Storage, Separation, and Removal of Tritium

Advanced Materials, Volume 35, Issue 48, November 28, 2023., 2023
Tritium is a prime fuel to generate fusion power, but its storage and separation in pure form are major challenges in nuclear industries. This review discusses recent progress and main research trends in hydrogen isotope storage and separation while emphasizing tritium using metal hydrides, nanoporous zeolites, and metal organic frameworks (MOFs) and 2‐
Muruganantham Rethinasabapathy, Seyed Majid Ghoreishian, Seung‐Kyu Hwang, Young‐Kyu Han, Changhyun Roh, Yun Suk Huh   +5 more
wiley   +1 more source

Formation and kinetics of aluminide coating on 316L stainless steel by pack cementation process

He jishu, 2023
BackgroundPack cementation aluminizing technology is a common method for preparing tritium barrier coatings, and its relative parameters during the preparation process have an important influence on the microstructure of the aluminide layer and the ...
WANG Jun, LIU Chaonan, LIANG Chaofei, ZHANG Dongxun, WANG Zhenwei, ZHANG Jing, WANG Wei, JIANG Jinyao   +7 more
doaj   +1 more source