Alumina‐based filters made via binder jet 3D printing of alumina powder, colloidal silica infiltration, and sintering
Source abstract
Abstract
Abstract Alumina‐based, porous filter media was made via a binder jet 3D printing process consisting of an alumina powder printing step with subsequent heating, colloidal silica infiltration, drying, and sintering to consolidate particles yet retain a net open porous microstructure. The composites made were alumina‐silica or alumina‐mullite, where the silica sintering aid was used to densify and join the alumina particles. The resulting composite structures had open porosities in the 25–31 vol% range as measured by Archimedes density. Pressure drops were measured across the filter media at constant flow rates to compare disc shapes and complex, 3D printed filters based on the N95 design requirements. Complex, 3D‐printed alumina composites were produced with acceptable pressure drops for N95 implementation.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Innovations in Concrete and Construction Materials · Additive Manufacturing and 3D Printing Technologies · Dielectric materials and actuators
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Manufacuting Science Division Oak Ridge National Laboratory Oak Ridge Tennessee USA
Materials Science and Technology Division Oak Ridge National Laboratory Oak Ridge Tennessee USA
References (27)
Show source-provided references
1. 10.1080/1542811989101038910.1080/15428119891010389 ↗
2. 10.1021/acsnano.0c0359710.1021/acsnano.0c03597 ↗
3. 10.1016/j.ajic.2020.07.00410.1016/j.ajic.2020.07.004 ↗
4. 10.1016/S1383-5866(03)00062-510.1016/S1383-5866(03)00062-5 ↗
5. APPROVAL OF RESPIRATORY PROTECTIVE DEVICES. Title… ‐ Google Scholar. Title 42 Code of Federal Regulations 2004.
6. 10.1016/S1872-2067(15)61003-810.1016/S1872-2067(15)61003-8 ↗
7. 10.1016/j.ceramint.2015.02.01610.1016/j.ceramint.2015.02.016 ↗
8. 10.1016/S0955-2219(98)00063-610.1016/S0955-2219(98)00063-6 ↗
9. 10.1111/j.1744-7402.2005.02045.x10.1111/j.1744-7402.2005.02045.x ↗
10. 10.1007/s10934-005-5233-010.1007/s10934-005-5233-0 ↗
11. 10.1007/s13369-017-2872-910.1007/s13369-017-2872-9 ↗
12. 10.1111/j.1744-7402.2005.02044.x10.1111/j.1744-7402.2005.02044.x ↗
13. 10.1002/nme.11610.1002/nme.116 ↗
14. StueckerJN CesaranoJ MillerJE FerrizzRM MuddJE. Novel three‐dimensional ceramic lattices as catalyst supports and diesel particulate traps. in SAE Technical Papers 2003.10.4271/2003-01-0838 ↗
15. StueckerJN CesaranoJIII SmayE. Robocasting Periodic Lattices For Advanced Filtration.
16. 10.1016/j.apcatb.2019.11830710.1016/j.apcatb.2019.118307 ↗
17. Binder jet 3D printing – process parameters, materials, properties, and challenges
18. 10.1016/j.mtcomm.2018.02.02910.1016/j.mtcomm.2018.02.029 ↗
19. 10.1016/j.jeurceramsoc.2017.03.03510.1016/j.jeurceramsoc.2017.03.035 ↗
20. 10.1016/S0955-2219(00)00164-310.1016/S0955-2219(00)00164-3 ↗
21. 10.1016/S0955-2219(96)00214-210.1016/S0955-2219(96)00214-2 ↗
22. 10.1016/j.ceramint.2020.05.08810.1016/j.ceramint.2020.05.088 ↗
23. NIOSH. Procedure No. TEB‐APR‐STP‐0059 Revision 2.0. Determination of particulate filter efficiency level for N95 series filters against solid particulates for non‐powered air purifying respirators standard testing procedure (STP).2019. p.1–9.
24. 10.1111/j.1151-2916.1990.tb06506.x10.1111/j.1151-2916.1990.tb06506.x ↗
25. Title 42 ‐ Public Health: Part 84 ‐ Approval of Respiratory Protectivy Devices. 1.2004.
26. 10.3390/electronics810106710.3390/electronics8101067 ↗
27. 10.1016/j.jclepro.2020.12050010.1016/j.jclepro.2020.120500 ↗