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Fe-Ni-based metal amorphous nanocomposites with a range of compositions (Fe100−xNix)80Nb4Si2B14 (30 ≤ x ≤ 70) are investigated for motor and transformer applications, where it is beneficial to have tunable permeability. It is shown that strain annealing offers an effective method for tuning permeability in these alloys. For an Fe-rich alloy, permeability increased from 4000 to 16,000 with a positive...
We report a scalable manufacturing approach to produce nano-porous metal oxide films and the dopant variants using a block-copolymer template combined with a sol–gel solution processing approach. The refractive index of the film can be tailored to 1.2–2.4 by 3D nanostructuring in the sub-wavelength regime at scales of 20 nm or less. Based on this approach, this paper reports the synthesis of nanoporous...
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