| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Alternative Processes (Beyond the Beam)
|
| Presentation Title |
A-41: Fabrication of Sub-microscale Metallic Glass Particles and Wires via High Pressure Atomization |
| Author(s) |
Wan Kim, Chae Woo Ryu, Eun Soo Park, Koji Nakayama |
| On-Site Speaker (Planned) |
Wan Kim |
| Abstract Scope |
Recently industrial fields related to nano devices have been required the advanced processes for manufacturing sub-microscale substances. Compare with the conventional alloys, metallic glasses (MGs) possess 10 times higher viscosity and surface tensions. Thus, it is possible to obtain the sub-microscale MG substances via atomization process. In the present study, we systematically investigated the high pressure atomization of the ZrCu-based glass-forming alloys to discover the universal expression for the size and morphology of atomized substances. First, we measured the thermal properties including the surface tension, viscosity and density of the molten alloys using electro-static levitation technique, and discussed the relationship among average diameter of particle and wire with those thermal properties. Secondly, we calculated Reynolds, Ohnesorge, and Weber number to solve the hidden mechanism of liquid jet break up mode. These results provide a novel guideline how to control the size and morphology down to nanometer scale by atomization process. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |