Title :
Crystallization behavior of Ni-Nb-Sb system bulk metallic glass
Author :
Lu, Junxia ; Zhang, Jiliang ; Shek, Chanhung
Author_Institution :
Dept. of Phys. & Mater. Sci., City Univ. of Hong Kong, Hong Kong, China
Abstract :
The crystallization of (Ni8Nb5)99.5Sb0.5 bulk metallic glass at the temperature of 700°C in the synthetic air was investigated. Crystallization occurred to form the columbite NiNb2O6 and oxides Nb2O5 and NiO. The surface presented the compact and continuous structure. The cross section shows that the oxide scale is about 40 ¿m depth. The upper scale forms the compact structure, however, loose one with the lamellar structure was observed with the depth. In the internal, a compact transition layer was also seen.
Keywords :
antimony alloys; crystallisation; metallic glasses; nickel alloys; niobium alloys; surface structure; NiNbSb; bulk metallic glass; compact structure; compact transition layer; continuous structure; crystallization; lamellar structure; oxide scale; surface structure; temperature 700 degC; Crystallization; Glass; Heart rate; Nickel alloys; Niobium alloys; Niobium compounds; Oxidation; Scanning electron microscopy; Surface morphology; Temperature;
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
DOI :
10.1109/INEC.2010.5425131
