On the processes of segregation and stability of bimetallic nanoparticles Ni@Ag and Ag@Ni by K.G. Savina, I.R. Galuzin, A.Yu. Kolosov, S.S. Bogdanov, A.D. Veselov, N.Yu. Sdobnyakov

“…The data obtained suggest that the processes of segregation in Ni@Ag and Ag@Ni nanoparticles are associated with the nanoparticle stability. The silver shell loses its stability above 900 K, while the nickel core remains solid and retains its structure. …”
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