نتایج جستجو برای: nanoscale fe particles
تعداد نتایج: 254004 فیلتر نتایج به سال:
Frictional contacts lead to the formation of a surface layer called third body, consisting wear particles and structures resulting from their agglomerates. Its behavior properties at nanoscale control macroscopic tribological performance. It is known that topography evolve with time mutually influence one another. However, mature body largely uncharted territory its early stages are unknown. He...
Combining scanning tunneling microscopy (STM), IR reflection absorption spectroscopy (IRAS) and molecular beam (MB) techniques, we have investigated particle size effects on a Pd/Fe(3)O(4) model catalyst. We focus on the particle size dependence of (i) CO adsorption, (ii) oxygen adsorption and (iii) Pd nanoparticle oxidation/reduction. The model system, which is based on Pd nanoparticles suppor...
Fe or Co based alloys with nanocrystalline microstructure show excellent permeability because the net magnetocrystalline anisotropy is significantly reduced when the grain size becomes smaller than the ferromagnetic exchange length. Fe-Si-B-Nb-Cu alloy is the pioneering nanocrystalline soft magnetic material invented by Yoshizawa et al. in 1988 [1]. Our previous works [2,3] reported evidence fo...
Sample preparation for nanoscale plastic debris extraction from soil using europium doped polystyrene particles (Eu-Ps NP).
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