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- W2109562189 abstract "High-strength Al(O) alloys, initially discovered by ion implantation, have now been produced with electron-cyclotron resonance plasma deposition and pulsed-laser deposition. The mechanical properties of these deposited alloy layers were examined with nanoindentation, and finite element modeling of the indented layer on Si substrates was used to determine yield stresses for the alloys of {approximately} 1--5 GPa. The key to these high strengths is the high density of nanometer-size {gamma}-Al{sub 2}O{sub 3} precipitates formed when high concentrations (5--30 at.%) of oxygen are introduced into aluminum as individual atoms or molecules. The strongest alloys have precipitates as small as 1 nm, implying that such small precipitates block dislocation motion. Based upon previous studies with oxygen-implanted aluminum, improved tribological properties are expected for layers made by the two new deposition methods." @default.
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- W2109562189 date "1995-09-28" @default.
- W2109562189 modified "2023-09-25" @default.
- W2109562189 title "Energetic-particle synthesis of high-strength Al(O) alloys" @default.
- W2109562189 doi "https://doi.org/10.2172/171335" @default.
- W2109562189 hasPublicationYear "1995" @default.
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