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Revision as of 15:06, 29 July 2020
Source
- Bihari, N., Heikkinen, I. T. S., Marin, G., Ekstrum, C., Mayville, P. J., Oberloier, S., ... Pearce, J. (Accepted/Inpress). Vacuum Outgassing Characteristics of Unpigmented 3-D Printed Polymers Coated with ALD Alumina.Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films (in press, 2020).[ open access] Aalto preprint
Abstract
3-D printing offers enormous potential for fabricating custom equipment for space and vacuum systems, but in order to do this at low-costs, polymers are necessary. Historically polymers have not been suited for these applications because of outgassing, but if coated with a conformal, inorganic film introduced with atomic layer deposition (ALD), then outgassing can be reduced. Previous work on coating ALD layers showed promise with heavily outgassing carbon black containing 3-D printed polymers. In this study, ALD aluminum oxide and a commercially available vacuum sealant resin were used to coat clear, acrylonitrile butadiene styrene (ABS), polycarbonate (PC) and polypropylene (PP). Characterization of the films included spectroscopic ellipsometry for thickness, microstructure analysis with scanning electron microscopy, chemical analysis with energy-dispersive X-ray spectroscopy, and residual gas analysis to study relative change in outgassing. ALD-coated samples registered lower pressures than the resin-coated ones. The results showed that the ALD coatings could effectively inoculate unpigmented 3-D printed plastics, which could be used in contamination-sensitive environments such as semiconductor processing systems and space environments.
Keywords
3-D printing,chemical compatibility, semiconductor wet processing, custom labware, clean room; vacuum; outgassing; polymer; atomic layer deposition; semiconductor processing
See Also
- Vacuum Outgassing Characteristics of Unpigmented 3-D Printed Polymers Coated with ALD Alumina
- Chemical Compatibility of Fused Filament Fabrication-based 3-D Printed Components with Solutions Commonly Used in Semiconductor Wet Processing
- Compatibility of 3-D printed devices in cleanroom environments for semiconductor processing
- Mechanical Properties of Components Fabricated with Open-Source 3-D Printers Under Realistic Environmental Conditions
- The Effects of PLA Color on Material Properties of 3-D Printed Components
- Open source rapid prototyping of OSAT
- RepRap Mechanical Testing Literature Review
- Environmental life cycle analysis of distributed 3-D printing and conventional manufacturing of polymer products
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- Tensile Strength of Commercial Polymer Materials for Fused Filament Fabrication 3-D Printing
- Approaches to Open Source 3-D Printable Probe Positioners and Micromanipulators for Probe Stations