About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Characterization of Minerals, Metals and Materials
|
Presentation Title |
Investigating the Morphology, Hardness, and Porosity of Spherical and Dendritic Copper Powder Filters Produced via Isostatic Pressing |
Author(s) |
Hasan Ayub, Lehar Asip Khan, Eanna McCarthy, Inam ul Ahad, Sithara Sreenilayam, Karsten Fleischer, Dermot Brabazon |
On-Site Speaker (Planned) |
Hasan Ayub |
Abstract Scope |
Porosity in copper filters is sensitive to powder type and space holder material in addition to fabrication processing conditions. This study is focused on the use of two different copper powder types (spherical and dendritic) for the production of air flow filters. The hydraulic pressing method was used to produce copper filters under varying pressure with different spacer (polyvinyl alcohol (PVA)) concentrations. Samples were thermally sintered in two segments at 200 °C and 750 °C. The morphology, porosity, and mechanical properties of the sintered samples were characterized. The highest porosity was achieved in the sample produced using Dendritic powder mixed with the highest weight percentage of PVA (3%). As a porous structure, the hardness of the samples greatly varied within the samples. Copper filters with 14% to 26% porosity can be produced using spherical and dendritic copper powders by controlling the compaction pressure from 20 T to 25 T. |
Proceedings Inclusion? |
Planned: |
Keywords |
Powder Materials, Mechanical Properties, Sustainability |