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Phase composition and structural features of the yttrium oxide nanoparticles produced by laser evaporation are studied. Initial and annealed samples were examined. Initial samples contain several phases. The phase composition is found to depend on the particle size. Small crystallites (5–12 nm) possess a FCC lattice (Fm-3m) and larger ones have a BCC lattice (Ia-3). Annealing at temperatures T = 930–1000°C...
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