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Designing superhard metals: The case of low borides
AIP Advances, 2018 The search for new superhard materials has usually focused on strong covalent solids. It is, however, a huge challenge to design superhard metals because of the low resistance of metallic bonds against the formation and movement of dislocations. Here, we
Yongcheng Liang +5 more
doaj +1 more source
Microstructure and Hot Deformation Behaviour of a Novel Zr-Alloyed High-Boron Steel
Metals, 2019 A novel corrosion-resistant steel with high boron content is investigated in this paper. Three stages during crystallisation of the steel are revealed.
Alexey Prosviryakov +3 more
doaj +1 more source
Ultra-High Temperature Ceramics for solar receivers: spectral and high-temperature emittance characterization [PDF]
Journal of the European Optical Society-Rapid Publications, 2012 We report on the preparation, room temperature spectral reflectance and high-temperature thermal emittance characterization of different boride and carbide Ultra-High Temperature Ceramics (UHTCs).
Sani E. +4 more
doaj +1 more source
Angewandte Chemie, EarlyView.A series of donor‐attached brominated chiral luminescent radicals (CzTTBrM, 2CzTTBrM, and 3CzTTBrM) was synthesized, showing red to near‐infrared (NIR) circularly polarized luminescence (CPL) with exceptionally high PLQY of up to 76% and markedly enhanced CPL brightness (BCPL). Doping into polystyrene microspheres further yields whispering gallery mode
Kazuhiro Nakamura +14 more
wiley +2 more sources
Chimica Techno Acta, 2022 The paper presents the results of comparative analysis of the properties of coatings based on chromium, nickel and iron borides. The alloy obtained in the process of electron-beam surfacing of the powder mixture “amorphous boron – 10 wt.% chromium” has ...
Evdokiya Bushueva +4 more
doaj +1 more source
New ZrB$_2$ polymorphs: First-principles calculations
, 2020 Two new hypothetical zirconium diboride (ZrB2) polymorphs: (hP6-P63/mmc space group, no.194) and (oP6-Pmmn-space group, no.59), were thoroughly studied under the first-principles density functional theory calculations from the structural, mechanical and ...
Maździarz, Marcin, Mościcki, Tomasz
core +1 more source
Thermodynamic modeling of the NbeB system [PDF]
, 2007 In the present work, the Nb–B binary system was thermodynamically optimized. The stable phases in this system are BCC (niobium), Nb3B2, NbB, Nb3B4, Nb5B6, NbB2, B (boron) and liquid L.
Carvalho Coelho, Gilberto +4 more
core +3 more sources
Angewandte Chemie, EarlyView.The binder is shown to interact antagonistically with the catalyst in a sulfur cathode, impeding Li2Sx adsorption onto catalytic active sites. This hinders electrochemical performance and prevents the effective deployment of catalysts. This study showcases catalyst‐binder compatibility as a key parameter for cathode design in lithium‐sulfur (Li‐S ...
Kameron Liao +2 more
wiley +2 more sources
Room‐Temperature Gas‐Phase CO2‐to‐C3 Coupling by a 4f‐Aromatic Cluster
Angewandte Chemie, EarlyView.We engineered a 4f metalla aromatic cluster, PrB2C2−, that enables efficient sequential C−C coupling with CO2 at room temperature, yielding a linear C3 backbone. This system provides a complete theoretical catalytic cycle and establishes a new design principle for lanthanide mediated CO2 activation.
Feng‐Xiang Zhang +7 more
wiley +2 more sources
, 1977 The first studies relevant to alkali metal borides were carried out in the nineteenh century as an incidental part of the effort to isolate element boron by reduction of several boron compounds...
Naslain, Roger +2 more
openaire +2 more sources