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Abrading bulk metal into single atoms

Nature Nanotechnology, 2022
Single-atom catalysts have recently attracted considerable attention because of their highly efficient metal utilization and unique properties. Finding a green, facile method to synthesize them is key to their widespread commercialization. Here we show that single-atom catalysts (including iron, cobalt, nickel and copper) can be prepared via a top-down
Gao-Feng Han   +13 more
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Research on Abradability of Different Abradables Rubbed Against Ti2AlNb Blades

International Thermal Spray Conference, 2017
Abstract The Ti2AlNb blade is used in high pressure compressor aero-engines to provide high thrust force at relatively light weight. A series of abradability tests was carried out on CuAlNi-graphite, NiCrAl-graphite, NiCrAl-bentonite, and NiCrFeAl-hBN abradable coatings rubbed against Ti2AlNb dummy blades with the maximum blade-tip ...
X. Cheng   +5 more
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Fiber Metal Abradable Seals

Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; Process Industries; Technology Resources, 1984
Fiber metal abradable seals are used to control clearances in the compressor and turbine sections of gas turbine engines. Fiber metal seals are good abradables that rub by the low energy mechanism of brittle fiber fracture over a wide range of rub conditions. Rub mechanisms are significantly influenced by features in the seal microstructure.
R. P. Tolokan, M. S. Beaton
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Intraoral Mineralization of Abraded Dental Enamel

Journal of Dental Research, 1982
The iodide permeability (Ip) of abraded bovine enamel increased after short exposure to an acid buffer and decreased after short exposure to a mineralizing solution. Intraoral exposure gave a marked decrease in Ip after one h and a continued lesser decrease after two and three h.
F, Brudevold, A, Tehrani, Y, Bakhos
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