Results 21 to 30 of about 476 (172)

Stone–Wales Defect in Graphene

Small, Volume 19, Issue 44, November 1, 2023., 2023
Defects in graphene may be attributed to intrinsic or extrinsic reasons, but they often deteriorate the uniqueness and confine their applications in devices. This article discusses Stone–Wales (SW) defect in graphene and its derivatives comprehensively.
Santosh K. Tiwari, Sarvesh Kumar Pandey, Raunak Pandey, Nannan Wang, Michał Bystrzejewski, Yogendra Kumar Mishra, Yanqiu Zhu   +6 more
wiley   +1 more source

Effect of temperature distribution on tritium permeation rate to cooling water in JA DEMO condition

, 2021
The estimation of tritium permeation rate through the plasma facing wall into coolant is required to discuss tritium balance in a D-T fusion plant, to design tritium recovery system and to perform safety assessments.
Yuji, Hatano, 1042889, 1042887, 1042888, Akito, Ipponsugi, 1042885, Yoji, Someya, 1042886, 1042883, 1042884, 1042881, 1042882, 1042880, Katayama, Kazunari, Hirofumi, Nakamura, Kenji, Tobita, Yoshiteru, Sakamoto, 1042878, 1042879, 1042876, 1042877, 1042894, 1042895, 1042892, Chikada, Takumi, 1042893, 1042890, 1042891, Ryoji, Hiwatari, Oya, Makoto   +29 more
core   +1 more source

Deuterium permeability of a novel AlCrTaTiZr high entropy alloy coating

Materials Research Express, 2021
AlCrTaTiZr, AlCrTaTiZr nitride, and AlCrTaTiZr oxide coatings as tritium permeation barriers (TPBs) were prepared by magnetron co-sputtering technology on a CLF-1 (RAFM) substrate, to evaluate their hydrogen/deuterium permeation resistance.
Wei Zhang, Long Wang, Xiaofang Luo, Baoping Gong, Xiaoyu Wang, Jijun Yang, Yongjin Feng   +6 more
doaj   +1 more source

Study on the in-situ oxidation process of aluminizing layer formed on GH3535 superalloy

He jishu, 2023
BackgroundUnder high-temperature operating conditions, the tritium would be generated inside the core of thorium-based molten salt reactor (TMSR) and probably diffuse through the structural material into the environment.
LIANG Chaofei, LIU Wei, ZHANG Dongxun, WANG Wei, WANG Jun, XIA Xiaobin   +5 more
doaj   +1 more source

Solubility and diffusivity of hydrogen and its isotopes in the BeO system

Journal of the American Ceramic Society, Volume 106, Issue 8, Page 5005-5021, August 2023., 2023
Abstract This work revisits hydrogen insertion in the wurtzite beryllium oxide in order to fill the gap in scientific knowledge regarding the diffusion coefficients of the different chemical states of hydrogen (neutral, charged, or molecular). Both first‐principle and macroscopic models were used to this end.
Aurélien Riot, François Virot, Damien Connétable   +2 more
wiley   +1 more source

Erbium oxide as a new promising tritium permeation barrier [PDF]

Journal of Nuclear Materials, 2007
Abstract As a new hydrogen isotope barrier material, erbium oxide Er2O3, or erbia, has been tested. Investigations included both thermal load test and permeation measurements to determine whether erbia is compatible with other materials at elevated temperatures and if it suppresses hydrogen transport.
Levchuk, D., Levchuk, S., Maier, H., Bolt, H., Suzuki, A.   +4 more
openaire   +3 more sources

Hydrogen permeation barriers: Basic requirements, materials selection, deposition methods, and quality evaluation

Nuclear Materials and Energy, 2019
An effective permeation reduction of gaseous hydrogen isotopes into a metal wall by introducing a barrier is essential in two main fields: prevention of hydrogen-embrittlement in steels and control of the tritium inventory in future nuclear fusion ...
Vincenc Nemanič
doaj   +1 more source

Tritium permeation behavior through pyrolytic carbon in tritium production using high-temperature gas-cooled reactor for fusion reactors

Nuclear Materials and Energy, 2016
Under tritium production method using a high-temperature gas-cooled reactor loaded Li compound, Li compound has to be coated by ceramic materials in order to suppress the spreading of tritium to the whole reactor. Pyrolytic carbon (PyC) is a candidate of
H. Ushida, K. Katayama, H. Matsuura, R. Yamamoto, S. Fukada, M. Goto, S Nakagawa   +6 more
doaj   +1 more source

Artificial tissue binding models : development and comparative evaluation of high - throughput lipophilicity assays and their use for PET tracer optimization [PDF]

, 2015
The purpose of this thesis was to increase the efficiency of the Positron Emission Tomography (PET) tracer development process. Since many neuroimaging agents fail due to undesirably high non-specific binding (NSB) to brain tissue, we aimed at estimating
Assmus, Frauke
core   +1 more source

Tritium permeation and recovery for the Flibe/He blanket design [PDF]

, 1984
This study assumes tritium to be a gas dissolved in molten salt, with TF formation suppressed. Tritium permeates readily through the hot steel tubes of the reactor and steam generator and will leak into the steam system at the rate of about one gram per ...
R. Moir, Moir, R.
core   +1 more source