Results 1 to 10 of about 271 (258)
Glow Discharge Boronization and Real-Time Boronization Using an Impurity Powder Dropper in LHD
Nuclear Materials and EnergyIn the Large Helical Device (LHD), boronization is utilized for wall conditioning, employing two distinct methods: glow discharge using diborane gas and the injection of boron powder into the plasma via an impurity powder dropper (IPD).
S. Masuzaki +14 more
exaly +3 more sources
Experimental study on metallic impurity behavior with boronization wall conditioning in EAST tokamak
Nuclear Materials and EnergyOperation of EAST tokamak with full metal wall without any wall conditioning are attempted in 2023 and 2024 experimental campaign to address the issues related to ITER tungsten wall operation. It is found that H-mode plasma could be sustained even with a
Dario Mitnik +2 more
exaly +3 more sources
Nuclear Materials and Energy, 2018 Boronization is a Plasma Facing Component (PFC) conditioning technique widely used in tokamak machines. The National Spherical Torus Experiment-Upgrade (NSTX-U) applied this conditioning, using a plasma glow with a deuterated Trimethyl-boron (d-TMB) and ...
Filippo Scotti +2 more
exaly +3 more sources
Deuterium retention behaviors of boronization films at DIII-D divertor surface
Nuclear Materials and EnergyBoron coating of plasma-facing components (PFCs) is widely used in fusion devices to form surface coatings and chemical compounds on the PFCs, thus suppressing plasma contamination by impurities such as oxygen, carbon, and tungsten.
Ryan Hood
exaly +3 more sources
Hydrophosphination of boron–boron multiple bonds
Chemical Science, 2020 Compounds containing boron–boron double and triple bonds are shown to undergo uncatalysed hydrophosphination reactions with diphenylphosphine.
Tom E. Stennett +4 more
openaire +3 more sources
Global modeling of wall material migration following boronization in NSTX-U
Nuclear Materials and Energy, 2019 Boronization is commonly utilized in tokamaks to suppress intrinsic impurities, most notably oxygen from residual water vapor. However, this is a temporary solution, as oxygen levels typically return to pre-boronization levels following repeated plasma ...
J.H. Nichols +6 more
doaj +1 more source
Nuclear Materials and Energy, 2019 In ASDEX Upgrade with full-tungsten wall, boronization is an important tool to control tungsten sources and allow reliable operation at low collisionality. The duration of the beneficial effects is limited by the erosion of the boron layer, in particular
A. Bortolon +12 more
doaj +1 more source
Frontiers in Physics, 2022 The molecular dynamics code LAMMPS was used to simulate the bombardment of a graphite structure by atomic boron with impact energies ranging from 50–250 eV.
Aaditya Rau +4 more
doaj +1 more source
Nuclear Materials and Energy, 2017 An innovative PFC diagnostic, the Materials Analysis Particle Probe (MAPP) was used to study the chemistry of Plasma Facing Components (PFCs) in the National Spherical Tokamak Experiment Upgrade (NSTX-U). NSTX-U used boronization as conditioning strategy
F. Bedoya +5 more
doaj +1 more source
Synthesis of Boron Analogues of Enamines via Hydroamination of a Boron−Boron Triple Bond [PDF]
Angewandte Chemie International Edition, 2020 AbstractAn N‐heterocyclic‐carbene‐stabilized diboryne undergoes rapid, high‐yielding and catalyst‐free hydroamination reactions with primary amines, yielding 1‐amino‐2‐hydrodiborenes, which can be considered boron analogues of enamines. The electronics of the organic substituent at nitrogen influence the structure and further reactivity of the diborene
Tobias Brückner +4 more
openaire +3 more sources