This study focuses on the mechanical alloying behaviour of equiatomic Cu-Nb powder mixtures subjected to ball milling at temperatures between 300 and 900 K. A homogeneous amorphous phase forms at room temperature. The increase of processing temperature promotes the formation of mixtures of amorphous and nanostructured Cu and Nb phases below 650 K, and of nanostructured Cu-Nb composites above 650 K. The grain size of Cu and Nb phases increases with temperature according to a power-law kinetics.
Influence of temperature on the mechanical alloying of Cu-Nb powder mixtures / Locci, A. M.; Ligios, G.; Mascia, M.; Enzo, Stefano; Delogu, F.. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - 639:October(2015), pp. 23-28. [10.1016/j.cplett.2015.08.072]
Influence of temperature on the mechanical alloying of Cu-Nb powder mixtures
ENZO, Stefano;
2015-01-01
Abstract
This study focuses on the mechanical alloying behaviour of equiatomic Cu-Nb powder mixtures subjected to ball milling at temperatures between 300 and 900 K. A homogeneous amorphous phase forms at room temperature. The increase of processing temperature promotes the formation of mixtures of amorphous and nanostructured Cu and Nb phases below 650 K, and of nanostructured Cu-Nb composites above 650 K. The grain size of Cu and Nb phases increases with temperature according to a power-law kinetics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
