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Title: PRELIMINARY TESTING OF NANOPARTICLE EFFECTIVENESS IN BINDER JETTING APPLICATIONS

Abstract

Binder jetting works by selectively depositing a binder with an inkjet print head into layers of powdered material. Compared with other metal Additive Manufacturing (AM) processes, binder jetting has significant potential for near-term adoption in manufacturing environments due to its reliability and throughput. The Achilles heel of binder jetting, however, is the inability to produce fully dense, single-alloy materials. The lack of density in printed binder jet parts is strictly dictated by the packing factor of the powder feedstock. Adding nanoparticles during printing will not only increase the part s packing factor but may also serve as a sintering aid. This study focuses on the effect of both the binder and nanoparticles on the final part density. As an unintended consequence of high nanoparticle loading, printed parts underwent a significant increase in porosity during the curing process. This unintended consequence is the apparent result of the nanoparticles blocking the exit of the solvent vapor during the curing step. Additionally, nanoparticle use for densification is validated with SEM imagery.

Authors:
 [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Manufacturing Demonstration Facility (MDF)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1333091
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 2016 Annual International Solid Freeform Fabrication Symposium, Austin, TX, USA, 20160808, 20160810
Country of Publication:
United States
Language:
English

Citation Formats

Bailey, Alta C, Elliott, Amy M, and Basti, Mufeed M. PRELIMINARY TESTING OF NANOPARTICLE EFFECTIVENESS IN BINDER JETTING APPLICATIONS. United States: N. p., 2016. Web.
Bailey, Alta C, Elliott, Amy M, & Basti, Mufeed M. PRELIMINARY TESTING OF NANOPARTICLE EFFECTIVENESS IN BINDER JETTING APPLICATIONS. United States.
Bailey, Alta C, Elliott, Amy M, and Basti, Mufeed M. Fri . "PRELIMINARY TESTING OF NANOPARTICLE EFFECTIVENESS IN BINDER JETTING APPLICATIONS". United States.
@article{osti_1333091,
title = {PRELIMINARY TESTING OF NANOPARTICLE EFFECTIVENESS IN BINDER JETTING APPLICATIONS},
author = {Bailey, Alta C and Elliott, Amy M and Basti, Mufeed M},
abstractNote = {Binder jetting works by selectively depositing a binder with an inkjet print head into layers of powdered material. Compared with other metal Additive Manufacturing (AM) processes, binder jetting has significant potential for near-term adoption in manufacturing environments due to its reliability and throughput. The Achilles heel of binder jetting, however, is the inability to produce fully dense, single-alloy materials. The lack of density in printed binder jet parts is strictly dictated by the packing factor of the powder feedstock. Adding nanoparticles during printing will not only increase the part s packing factor but may also serve as a sintering aid. This study focuses on the effect of both the binder and nanoparticles on the final part density. As an unintended consequence of high nanoparticle loading, printed parts underwent a significant increase in porosity during the curing process. This unintended consequence is the apparent result of the nanoparticles blocking the exit of the solvent vapor during the curing step. Additionally, nanoparticle use for densification is validated with SEM imagery.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {1}
}

Conference:
Other availability
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