Niobium nanoclusters studied with in situ transmission electron microscopy | Zendy

T. Vystavěl | Zendy; G. Palasantzas | Zendy; S. A. Koch | Zendy; J. Th. M. De Hosson | Zendy

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Niobium nanoclusters studied with in situ transmission electron microscopy

Author(s) -

T. Vystavěl,

G. Palasantzas,

S. A. Koch,

J. Th. M. De Hosson

Publication year - 2003

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.1625789

Subject(s) - nanoclusters , niobium , transmission electron microscopy , coalescence (physics) , materials science , crystallography , chemical physics , cluster (spacecraft) , electron microscope , niobium oxide , in situ , nanotechnology , chemistry , metallurgy , optics , physics , organic chemistry , astrobiology , computer science , programming language

Structural aspects of deposited niobium nanoclusters approximately 10 nm in size have been explored by means of high-resolution transmission electron microscopy. The niobium clusters have a bcc structure and a crystal habit of rhombic dodecahedron. In situ heating up to ∼800 °C revealed a resistance to high temperatures, in the sense that the cluster habit is preserved. However, the internal structural order of the clusters is altered due to formation of niobium oxide domains within the clusters. Coalescence does not occur even at the highest temperatures, which is attributed to the presence of facets and the occurrence of oxidation during heat treatment.

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