About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
13th Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing
|
Presentation Title |
Preparation of Tin Nanosized Powder by Pulsed Wire Discharge |
Author(s) |
Hisayuki Suematsu, Souma Yamamoto, Thi Mai Dung Do, Tadachika Nakayama |
On-Site Speaker (Planned) |
Hisayuki Suematsu |
Abstract Scope |
Sn has a low melting point and has been used in lead-free solder alloys. Because of the needs to decrease the soldering temperature, sintering rather than melting has been attempted. For this applications, preparation of Sn and its alloy nanosized powders is required.
Pulsed wire discharge (PWD) is known as a physical evaporation method in which a thin metal wire is evaporated by pulsed large current and cooled in ambient gas. In this research, to simplify the effect of the crystal structure to the particle formation, nanosized powder of Sn with a tetragonal unit cell was to be prepared by PWD.
From TEM bright field images and XRD patterns, Sn nanosized power was successfully prepared. Geometric mean diameter was decreased with increasing the charging voltage and decreasing the pressure. The particle size control method for Sn nanosized powder preparation by PWD was successfully developed. |