Infiltration of Nanoparticles into Porous Binder Jet Printed Parts
Abstract
The densification of parts that are produced by binder jetting Additive Manufacturing (AM; a.k.a. “3D Printing”) is an essential step in making them mechanically useful. By increasing the packing factor of the powder bed by incorporating nanoparticles into the binder has potential to alleviate the amount of shrinkage needed for full densification of binder jet parts. We present preliminary data on the use of 316L Stainless Steel Nanoparticles (SSN) to densify 316L stainless steel binder jet parts. Aqueous solutions of Diethylene Glycol (DEG) or Ethylene Glycol (EG) were prepared at different DEG/water and EG/water molar ratios; pH of the solutions was adjusted by the use of 0.10 M sodium hydroxide. Nanoparticles were suspended in a resulted solution at a volume percentage of SSN/solution at 0.5%. The suspension was then sonicated for thirty minutes. One milliliter of the suspension was added stepwise to a sintered, printed disk with the dimensions: (d = 10 mm, h = 3 mm) in the presence of a small magnet. The 3D part was then sintered again. Moreover, the increase in the mass of the 3D part was used as indication of the amount of nanoparticles that diffused in the 3D part. This mass percent increasemore »
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- North Carolina A&T State Univ., Greensboro, NC (United States)
- Publication Date:
- Research Org.:
- North Carolina A&T State Univ., Greensboro, NC (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Manufacturing Demonstration Facility (MDF); North Carolina A & T State Univ., Greensboro, NC (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- Contributing Org.:
- North Carolina A&T State University
- OSTI Identifier:
- 1411031
- Alternate Identifier(s):
- OSTI ID: 1286974; OSTI ID: 1439169; OSTI ID: 1439179
- Grant/Contract Number:
- NA0002687; AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- American Journal of Engineering and Applied Sciences
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 1941-7020
- Publisher:
- Science Publications
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; Nanoparticles; Additive Manufacturing; 3D Printing; Metal Powder; nanoparticles; additive manufacturing; 3D printing; metal powder
Citation Formats
Elliott, Amelia, AlSalihi, Sarah, Merriman, Abbey L., and Basti, Mufeed M. Infiltration of Nanoparticles into Porous Binder Jet Printed Parts. United States: N. p., 2016.
Web. doi:10.3844/ajeassp.2016.128.133.
Elliott, Amelia, AlSalihi, Sarah, Merriman, Abbey L., & Basti, Mufeed M. Infiltration of Nanoparticles into Porous Binder Jet Printed Parts. United States. https://doi.org/10.3844/ajeassp.2016.128.133
Elliott, Amelia, AlSalihi, Sarah, Merriman, Abbey L., and Basti, Mufeed M. Fri .
"Infiltration of Nanoparticles into Porous Binder Jet Printed Parts". United States. https://doi.org/10.3844/ajeassp.2016.128.133. https://www.osti.gov/servlets/purl/1411031.
@article{osti_1411031,
title = {Infiltration of Nanoparticles into Porous Binder Jet Printed Parts},
author = {Elliott, Amelia and AlSalihi, Sarah and Merriman, Abbey L. and Basti, Mufeed M.},
abstractNote = {The densification of parts that are produced by binder jetting Additive Manufacturing (AM; a.k.a. “3D Printing”) is an essential step in making them mechanically useful. By increasing the packing factor of the powder bed by incorporating nanoparticles into the binder has potential to alleviate the amount of shrinkage needed for full densification of binder jet parts. We present preliminary data on the use of 316L Stainless Steel Nanoparticles (SSN) to densify 316L stainless steel binder jet parts. Aqueous solutions of Diethylene Glycol (DEG) or Ethylene Glycol (EG) were prepared at different DEG/water and EG/water molar ratios; pH of the solutions was adjusted by the use of 0.10 M sodium hydroxide. Nanoparticles were suspended in a resulted solution at a volume percentage of SSN/solution at 0.5%. The suspension was then sonicated for thirty minutes. One milliliter of the suspension was added stepwise to a sintered, printed disk with the dimensions: (d = 10 mm, h = 3 mm) in the presence of a small magnet. The 3D part was then sintered again. Moreover, the increase in the mass of the 3D part was used as indication of the amount of nanoparticles that diffused in the 3D part. This mass percent increase was studied as a function of pH of the suspension and as function DEG/water molar ratio. Unlike EG, data show that change in pH affects the mass percent when the suspension was made with DEG. Finally, optical analysis of the discs’ cross sections revealed trends metallic densities similar to trends in the data for mass increase with changing pH and water molar ratio.},
doi = {10.3844/ajeassp.2016.128.133},
journal = {American Journal of Engineering and Applied Sciences},
number = 1,
volume = 9,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 2016},
month = {Fri Jan 01 00:00:00 EST 2016}
}
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Fig. 1: Experimental setup and subsequent separation of the suspension
Works referencing / citing this record:
A ReaxFF molecular dynamics study of molecular-level interactions during binder jetting 3D-printing
journal, January 2019
- Gao, Yawei; Shin, Yun Kyung; Martinez, Daniel
- Physical Chemistry Chemical Physics, Vol. 21, Issue 38
A review on recent developments in binder jetting metal additive manufacturing: materials and process characteristics
journal, September 2019
- Lores, Asier; Azurmendi, Naiara; Agote, Iñigo
- Powder Metallurgy, Vol. 62, Issue 5
Figures / Tables found in this record: