Production of 28 μm zirconium carbide kernels using the internal gelation process and microfluidics
Abstract
Studies using internal gelation and microfluidics have shown that the production of sintered spheres with diameters below 200 mm is possible. The addition of carbon can be problematic because of slow flow rates (100 mL/min) and long run times (4 h). However, we report a solution of dispersed carbon, Cabot’s TPX-101, was successfully used with solutions of zirconyl nitrate, urea, and hexamethylenetetramine to make zirconium microspheres with carbon. A simple carbothermic reduction using a maximum temperature of 2073 K and ultrahigh purity argon produced zirconium carbide kernels with an average diameter of 28 mm and a standard deviation of 2.3 mm.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Nuclear Energy (NE)
- OSTI Identifier:
- 1606960
- Alternate Identifier(s):
- OSTI ID: 1580390
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Nuclear Materials
- Additional Journal Information:
- Journal Volume: 528; Journal Issue: C; Journal ID: ISSN 0022-3115
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Zirconium carbide kernels; Internal gelation; Microfluidics
Citation Formats
Hunt, Rodney Dale, McMurray, Jake W., Helmreich, Grant W., Eckhart, Brian D., McAlister, Abbey L., and Nelson, Andrew T. Production of 28 μm zirconium carbide kernels using the internal gelation process and microfluidics. United States: N. p., 2019.
Web. doi:10.1016/j.jnucmat.2019.151870.
Hunt, Rodney Dale, McMurray, Jake W., Helmreich, Grant W., Eckhart, Brian D., McAlister, Abbey L., & Nelson, Andrew T. Production of 28 μm zirconium carbide kernels using the internal gelation process and microfluidics. United States. https://doi.org/10.1016/j.jnucmat.2019.151870
Hunt, Rodney Dale, McMurray, Jake W., Helmreich, Grant W., Eckhart, Brian D., McAlister, Abbey L., and Nelson, Andrew T. Mon .
"Production of 28 μm zirconium carbide kernels using the internal gelation process and microfluidics". United States. https://doi.org/10.1016/j.jnucmat.2019.151870. https://www.osti.gov/servlets/purl/1606960.
@article{osti_1606960,
title = {Production of 28 μm zirconium carbide kernels using the internal gelation process and microfluidics},
author = {Hunt, Rodney Dale and McMurray, Jake W. and Helmreich, Grant W. and Eckhart, Brian D. and McAlister, Abbey L. and Nelson, Andrew T.},
abstractNote = {Studies using internal gelation and microfluidics have shown that the production of sintered spheres with diameters below 200 mm is possible. The addition of carbon can be problematic because of slow flow rates (100 mL/min) and long run times (4 h). However, we report a solution of dispersed carbon, Cabot’s TPX-101, was successfully used with solutions of zirconyl nitrate, urea, and hexamethylenetetramine to make zirconium microspheres with carbon. A simple carbothermic reduction using a maximum temperature of 2073 K and ultrahigh purity argon produced zirconium carbide kernels with an average diameter of 28 mm and a standard deviation of 2.3 mm.},
doi = {10.1016/j.jnucmat.2019.151870},
journal = {Journal of Nuclear Materials},
number = C,
volume = 528,
place = {United States},
year = {Mon Oct 28 00:00:00 EDT 2019},
month = {Mon Oct 28 00:00:00 EDT 2019}
}
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Cited by: 8 works
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Figures / Tables:
Figure 1: Double wall heat exchanger with circulating water along entire gelation exit stream
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Works referenced in this record:
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Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.