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Meeting Materials Science & Technology 2019
Symposium Additive Manufacturing: Effective Production, Characterization, and Recycling of Powder Materials
Presentation Title Understanding Surface Area Measurement for Improved Powder Characterization
Author(s) Jack G. Saad
On-Site Speaker (Planned) Jack G. Saad
Abstract Scope A critical attribute that contributes to the quality of an additive manufacturing process is the surface area of the feedstock raw material. Surface area gives information about the amount of surface available to interact with binders which can offer a prediction of how the powder will behave. However, due to advances in technology, there are different techniques available and regularly used in industry to determine surface area. In this study, we explore and compare three techniques used to determine surface area of common metal powders. These techniques are BET method by gas adsorption, air permeability method, and calculated method from laser diffraction and density data. In addition, these techniques also provide additional useful information about the metal powders, including porosity, density, and particle size.
Proceedings Inclusion? Planned: At-meeting proceedings


Additive Manufacturing Alloys: Influence of Powder Preparation Method in Aluminum Matrix Composites
Assessment of 316L Stainless Steel Powder Produced from Recycled Machining Chips for Closed Lifecycle Additive-Subtractive Manufacturing
Characterization of Gas Atomized Aluminum Alloy Powder for Additive Manufacturing Applications
Characterization of Nickel-base Superalloy MAR-M247 Powders by Synchrotron X-ray Computed Tomography
Characterization of Titanium Powder Produced from Battlefield Scrap for Additive Manufacturing
Determination of Viscosity of Metal Melts by High Temperature Rheometry
Effects of Recycling PREP and Plasma Atomized Ti-6Al-4V Powder from LENS Process
Exploring the Feasibility of Cryomilled Aluminum Alloy 5083 as Feed Stock Material for Additive Manufacturing
Hydrogen Assisted Magnesiothermic Reduction (HAMR) for Making Low-oxygen Ti Powder
Metal Particulate Produced by Modulation-assisted Machining
P3-26: Identifying Correlations between Metal Powder Properties and Binder Jet Print Settings to Optimize Process
Potentials and Risks in Hybrid Manufacturing
Powder Specification Needs for Steels in the LPBF Process
Surface Area as a Powder Morphology Probe
Synchrotron X-ray CT of AM Feedstock Metal Powder: A Validation of Metallographic Porosity Measurements.
Understanding Powder Morphology and Its Effect on Flowability through Computer Vision and Machine Learning In Additive Manufacturing
Understanding Surface Area Measurement for Improved Powder Characterization

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