Results 31 to 40 of about 271 (258)

Full W ITER: Assessment of expected W erosion and implications of boronization on fuel retention

Nuclear Materials and Energy
Substituting Beryllium (Be) with Tungsten (W) as material for the first wall gives rise to new challenges for the ITER project. The additional W at the main chamber could result in a significant influx of high-Z impurities into the plasma owing to the ...
K. Schmid, T. Wauters
doaj   +1 more source

DigiChrom: A Domain Ontology for Semantic Representation of Trivalent Chromium Platings and Its Large Language Model‐Based Alignment With Multiple Mid‐Level Ontologies

Advanced Engineering Materials, EarlyView.
Digitalizing electroplating requires both domain knowledge and interoperability. This work introduces PlatOn, a domain ontology for trivalent chromium plating and coating characterization, and a hybrid pipeline that aligns it to a mid‐level reference ontology by combining eight similarity metrics with language model reasoning. Expert‐validated mappings
Janik Harter, Elena Garcia Trelles, Christoph Schweizer, Thomas Seifert, Christoph Baumer, Mahmoud Elkady, Katja Feige, Daniel Grimme, Edgar Hoffmann, Andreas Waibel, Anke Walter   +10 more
wiley   +1 more source

Plasma modification through boron particulate injection in the full tungsten environment of WEST

Nuclear Fusion
Recent experiments have confirmed the compatibility of extended boron particulate injections with high performance plasma discharges in the full tungsten (W) environment of WEST.
R. Lunsford, A. Gallo, K. Afonin, Ph. Moreau, A. Diallo, M. De Combarieu, S. Bose, D. Sgrelli, A. Bortolon, C. Bourdelle, C. Desgranges, A. Ekedahl, C. Guillemaut, J.P. Gunn, C.C. Klepper, P. Manas, A. Nagy, F.-P. Pellissier, E. Tsitrone, E.A. Unterberg, L. Vermare, the WEST Team   +21 more
doaj   +1 more source

Studies of material deposition during boronization using quartz crystal microbalance in EAST

Nuclear Materials and Energy
Boronization is a widely employed technique for controlling fuel recycling and suppressing impurities. It is expected to be a routine wall conditioning method in the fully tungsten (W) wall configuration of the International Thermonuclear Experimental ...
Yuming Liu, Rong Yan, Lei Mu, Baoguo Wang, Qian Long, Zhaohui Wang, Yefan Zhu, Yuxian Wen, Zengjie Li, Shuyue Sun, Rui Ding, Junling Chen   +11 more
doaj   +1 more source

Compound Boronizing and Its Kinetics Analysis for H13 Steel with Rare Earth CeO₂ and Cr₂O₃

Applied Sciences, 2022
The compound boronizing of H13 steel sample was carried out by adding rare earth CeO2, and the effects of main parameters of compound boronizing on the properties of the boronizing layer were investigated.
Shunqi Mei, Yanwei Zhang, Quan Zheng, Yu Fan, Burial Lygdenov, Alexey Guryev   +5 more
doaj   +1 more source

The symmetry of the boron buckyball and a related boron nanotube [PDF]

Chemical Physics Letters, 2010
We investigate the symmetry of the boron buckyball and a related boron nanotube. Using large-scale ab-initio calculations up to second-order Møller Plesset perturbation theory, we have determined unambiguously the equilibrium geometry/symmetry of two structurally related boron clusters: the B80 fullerene and the finite-length (5,0) boron nanotube.
Szwacki, N. Gonzalez, Tymczak, C. J.
openaire   +2 more sources

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

Advanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi, Mathias Galetz, Georg Hasemann, Fabian Lanoy, Emma White, Manja Krüger   +5 more
wiley   +1 more source

Study of spectral features and depth distributions of boron layers on tungsten substrates by ps-LIBS in a vacuum environment

Nuclear Materials and Energy
Boronization is used in present-devices as wall condition technique due to its effectiveness in reducing oxygen and other impurities in the vessel as well as improving plasma performance.
Huace Wu, Rongxing Yi, Anne Houben, Sebastijan Brezinsek, Marcin Rasinski, Cong Li, Gennady Sergienko, Yunfeng Liang, Timo Dittmar, Hongbin Ding   +9 more
doaj   +1 more source

Bonding with boron [PDF]

Nature Chemistry, 2009
Long ago, a global search for borane superfuels led fortuitously to the discovery of carboranes. Ken Wade recalls his own undistinguished part in the space race, and notes how carboranes revitalized boron hydride chemistry and modified our ideas of chemical bonding.
openaire   +2 more sources

The Influence of Field‐Assisted Sintering Technology (FAST) Temperature and Cooling Rate on the Microstructural Evolution in Gamma‐Titanium Aluminide Alloy GE4822

Advanced Engineering Materials, EarlyView.
Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
wiley   +1 more source