Results 221 to 230 of about 44,307 (293)
Acta Crystallographica Section B, EarlyView.A structural solution is presented of a primitive icosahedral ZnMgEr quasicrystal representing the Bergman‐type family. The structure model is based on atomic decoration of the Ammann–Kramer–Neri tiling.This study presents the atomic structure solution of a primitive icosahedral Zn70.83Mg20.31Er8.86 quasicrystal using in‐house X‐ray diffraction and the
Ireneusz Buganski +7 more
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Acta Crystallographica Section B, EarlyView.Crystal chemical rules are powerful tools to understand and rationalize inorganic crystal chemical structures. Using an automated approach, Beck's extended coordination number rule is proven to correctly rationalize the coordination within 82.2% of all ternary fluorides.Crystal chemical rules are widely applied to understand and rationalize inorganic ...
Niklas Langer, Holger Kohlmann
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Archaeometry, EarlyView.Abstract This paper presents the first direct evidence of the slags produced during the cementation alloying process of Cu with speiss inside ceramic crucibles, thus representing Cu alloying with As in Middle Kingdom Egypt. The settlement deposits from the Middle Bronze Age were excavated on Elephantine Island, within modern Aswan.
Jiří Kmošek, Martin Odler
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Effects of Hold Time on the Elevated Temperature Fatigue Crack Growth Behavior of Alloy 247LC‐DS
Fatigue &Fracture of Engineering Materials &Structures, EarlyView.ABSTRACT Creep–fatigue crack growth (CFCG) experiments were performed at 850°C and 950°C on nominally 12.70‐mm‐thick compact‐type specimens of alloy 247LC‐DS, a Ni‐base superalloy. The loading cycles consisted of trapezoidal waveforms with hold times of 2 and 20 min at the maximum force.
Zachary B. Towner +5 more
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Journal of Prosthodontics, EarlyView.Abstract Purpose To investigate the effects of the elemental composition and the manufacturing process of cobalt chromium–molybdenum (CoCr–Mo), cobalt chromium–tungsten (CoCr–W), and CoCr–Mo‐W alloys on metal–ceramic bond strength. Materials and Methods Six CoCr‐based alloys were included in this study, a were classified into three different groups ...
Youssef S. Al Jabbari +3 more
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Carbon Neutralization, Volume 5, Issue 3, May 2026.A dual‐atom catalyst with adjustable proximity effects is depicted, showing that variations in metal–metal interactions can modulate electronic structure, intermediate adsorption, and reaction pathways. These changes guide product selectivity in CO2 reduction and highlight design principles for efficient, tunable DAC systems.
Fanyong Yan +4 more
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Engineering Reports, Volume 8, Issue 4, April 2026.Welding power and post‐weld heat treatment (PWHT) at 850°C influence phase transformations in S32205 duplex stainless steel, promoting sigma phase formation and reducing corrosion resistance. PWHT at 850°C also replicates HAZ‐like microstructures in base metal, enabling improved characterization of weld joint properties.
Sandra Chacón‐Fernández +2 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT In this study, a newly developed seeded electromagnetic confinement directional solidification (EMCDS) technique was employed to fabricate large‐scale TiAl single crystal ingots with a diameter of 32 mm, overcoming the long‐standing size limitations that have hindered their industrial application.
Wei Wang +9 more
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Yb2‐Tb Upconversion in a Hetero‐Trimetallic Molecular Lanthanide Complex
Angewandte Chemie, Volume 138, Issue 13, 23 March 2026.Lanthanides are at the forefront of photon upconversion in molecular systems; however, the chemical nature of the lanthanides makes site‐specific coordination chemistry difficult to achieve. Here, we employ kinetically stabile building blocks to achieve hetero‐trimetallic 4f complexes with complete site‐specific chemical control.
Nicolaj Kofod +8 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Additively manufactured AlCoFeNi series eutectic high‐entropy alloys (EHEAs) exhibit nonequilibrium dual‐phase microstructure in the as‐printed state, allowing them to be easily tailored through annealing to explore their strength–toughness potential.
Huidong Wu +13 more
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