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Meeting MS&T23: Materials Science & Technology
Symposium Additive Manufacturing: Design, Materials, Manufacturing, Challenges and Applications
Presentation Title Atomic Layer Deposition Coatings for Additive Manufacturing Feedstock Modification and Improvement
Author(s) Chris Gump, Joseph Gauspohl, Brianna Boeyink, Brandon Castro
On-Site Speaker (Planned) Chris Gump
Abstract Scope We used atomic layer deposition (ALD) to modify the surfaces of additive manufacturing metal powder feedstocks. ALD, long used in the semiconductor industry, utilizes sequential, self-limiting surface reactions to deposit continuous, conformal films on surfaces with sub-nanometer control. Forge Nano has applied this technology to coat powders with a range of nanometer-scale oxide, nitride, and metal films. For metal powders, 2-8 nm Al2O3 ALD films increased the oxidation resistance of the powders, increasing the oxidation onset temperature in thermogravimetric analysis testing by 200-300C. Sub 3 nm Al2O3 and ZnO coatings improved the flowability of Ti64 and SS316L powders, allowing them to successfully flow through a Hall Flow Funnel test. For materials used in binder jet printing processes, ALD films improved the sintering behavior, yielding increased part density upon burnout. The process has been scaled from 100 g to 100 kg batches, with the potential to scale the processes even further.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D-Printed Composite Scaffolds for Biomedical Applications
A-13: Comparison of Mechanical Properties of AZ-31 Mg alloy by Wire-based Arc Additive Manufacturing
A-14: Data Management for Additive Manufacturing
Acoustic Energy Assisted Metal Powder Consolidation for Additive Manufacturing
Additive Manufacturing at (Sur)face Value: Correlating L-PBF Surface Features with Part Quality and Microstructure
Additive Manufacturing High Performance Thermal Systems
Additive Manufacturing of Embedded Metal Structures in a Polymer Matrix
Additive Manufacturing of Graded Tungsten Lattices for Radioactive Material Transport
Aiming the Susceptibility to Weld Solidification Cracking in Laser Powder Bed Fusion 316L Stainless Steel
Artificial Grain Image Generation for CNN-Based Segmentation Training in Additively Manufactured Components
Atomic Layer Deposition Coatings for Additive Manufacturing Feedstock Modification and Improvement
Binder Jetting and Characterization of Porous Structures
Co-designing and LPBF Additive Manufacturing of Complex Thermo-fluidic Components of Concentrating Solar-Thermal Power Plants - A Comprehensive Study of Printing Heat Exchangers and Solar Receivers
Considerations and Challenges for Uniting 3D Printing and Implantable Medicine
Critical Comparison of Advanced Non-destructive Evaluation Technologies for Laser Powder Bed Fusion Components
Design for Inspectability as a Challenge
Designing High-Strength Aluminum and Superalloys for Laser Powder Bed Fusion: Analyzing Cases of Success and Failure
Development of an Inconel Heat Exchanger via Binder Jetting Additive Manufacturing
Development of Eco-efficient Cement Compositions for 3D Printing Using the Concepts of Rheology
Electrochemical Surface Finishing of Additively Manufactured Materials
Evaluation of Environmentally Assisted Cracking on Wire Arc Additively Manufactured (WAAM) AISI 316LSi
GKN Aerospace Deposition of a Laser Wire DED 2.5m Titanium Aerostructure Demonstrator
High-strength Aluminum Alloy Selection for Space Optical Instruments
Identifying True Cracking States: Challenges and Practices for Crack-Susceptible Alloys in Additive Manufacturing
In-process Orbiting Laser-assisted Material Extrusion-based Additive Manufacturing for the Improvement of Mechanical and Geometrical Properties
Intellectual Property and Legal Challenges for Additive Manufacturing
Mechanical Characterization of As-built and Post-processed In-situ Alloyed Cu-4 at% Cr-2 at% Nb Made via Laser Powder Bed Fusion
Mechanical Properties of Hybrid Additively Manufactured Stainless Steel 316L
Mechanical Properties of SA508 Gr.3 Low Alloy Steel Using Directed Energy Deposition
Monitoring Additive Manufacturing in Real-Time via Image-Based Machine Learning Techniques
Process Mapping of Fe-3.5Si Produced through Laser Powder Bed Fusion and Relevant Properties
Processing of Inconel 718 Structures Via Wire Arc Additive Manufacturing
Real-time Binder Deposition Tracking and Modeling via Machine Learning Image Processing Methods
Sensitivity of Surface Porosity in Powder Bed Fusion to Process Parameters
Solid State Welding of Additively Manufactured Type 304L SS
Surface Patterning of Sacrificial Nodules Using L-PBF in Improving Corrosion Properties of Lightweight Al-Mg Alloy
The Control of Tailored Microstructure and Thermoelectric Properties in Additively Manufactured Materials
Ultra-High Temperature Performance of Additively Manufactured Refractory Alloys

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