About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Porous Materials for Energy and Environment Applications
|
| Presentation Title |
Examination of Pressure Drop Exhibited During the Flow of Air Through Binder Jet Printed Porous Metals |
| Author(s) |
Samuel Greulich, Markus Chmielus |
| On-Site Speaker (Planned) |
Samuel Greulich |
| Abstract Scope |
Permeability is a property defining the ease with which a fluid passes through a porous substance. When calculating this material characteristic, Darcy’s Law establishes a linear relationship between the fluid’s volumetric flow rate and the difference in pressure on either side of the material (i.e. the pressure drop) at sufficiently low Reynold’s numbers. Binder jet printing (BJP) is a unique form of additive manufacturing (AM) that initially produces low-density constructs before a post-print sintering step. By altering the furnace sintering temperature, it is possible to adjust the final density of the BJP parts. This study examines the pressure drop exhibited by air traveling at different volumetric flow rates through BJP metal samples that vary in density (60-85%), thickness (1-4 mm), and powder type/morphology (GA/WA IN625 and 316L). The intent is to demonstrate the validity of applying Darcy’s Law when assessing the permeability of porous BJP structures. |