Abstract
The tin-zinc binary alloy is one of the candidates for lead-free solder and plating. In order to investigate the evolution of solidified structure of the tin-zinc binary eutectic alloy, the unidirectional solidification technique has been applied using a Bridgman type furnace. The primary β-tin is obtained as dendritic structure. On the other hand, the primary zinc is obtained as plate crystal because of high anisotropy in surface tension. Coupled-zone is found to be extended to tin-rich side and to be rather symmetric. The lamella spacing in coupled zone agrees with Jackson-Hunt model. Furthermore, the broken-lamellar to fibrous transition has been observed at high growth velocity.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
