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Title: Chemical vapor deposition of Mo tubes for fuel cladding applications

Abstract

In this study, chemical vapor deposition (CVD) techniques have been evaluated for fabrication of free-standing 0.25 mm thick molybdenum tubes with the end goal of nuclear fuel cladding applications. In order to produce tubes with the wall thickness and microstructures desirable for this application, long deposition durations on the order of 50 h with slow deposition rates were employed. A standard CVD method, involving molybdenum pentachloride reduction by hydrogen, as well as a fluidized-bed CVD (FBCVD) method was applied towards these objectives. Characterization of the tubes produced in this manner revealed regions of material with fine grain microstructure and wall thickness suitable for fuel cladding applications, but lacking necessary uniformity across the length of the tubes. Finally, a path forward for the production of freestanding molybdenum tubes that possess the desired properties across their entire length has been identified and can be accomplished by future optimization of the deposition system.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1422928
Report Number(s):
LA-UR-17-30055
Journal ID: ISSN 0257-8972
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Surface and Coatings Technology
Additional Journal Information:
Journal Volume: 337; Journal Issue: C; Journal ID: ISSN 0257-8972
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; Nuclear fuel cladding; Molybdenum; (Fluidized-bed) chemical vapor deposition; Enhanced accident tolerant materials

Citation Formats

Beaux, Miles F., Vodnik, Douglas R., Peterson, Reuben J., Bennett, Bryan L., Salazar, Jesse J., Holesinger, Terry G., King, Graham, Maloy, Stuart A., Devlin, David J., and Usov, Igor O.. Chemical vapor deposition of Mo tubes for fuel cladding applications. United States: N. p., 2018. Web. doi:10.1016/j.surfcoat.2018.01.063.
Beaux, Miles F., Vodnik, Douglas R., Peterson, Reuben J., Bennett, Bryan L., Salazar, Jesse J., Holesinger, Terry G., King, Graham, Maloy, Stuart A., Devlin, David J., & Usov, Igor O.. Chemical vapor deposition of Mo tubes for fuel cladding applications. United States. doi:10.1016/j.surfcoat.2018.01.063.
Beaux, Miles F., Vodnik, Douglas R., Peterson, Reuben J., Bennett, Bryan L., Salazar, Jesse J., Holesinger, Terry G., King, Graham, Maloy, Stuart A., Devlin, David J., and Usov, Igor O.. Wed . "Chemical vapor deposition of Mo tubes for fuel cladding applications". United States. doi:10.1016/j.surfcoat.2018.01.063.
@article{osti_1422928,
title = {Chemical vapor deposition of Mo tubes for fuel cladding applications},
author = {Beaux, Miles F. and Vodnik, Douglas R. and Peterson, Reuben J. and Bennett, Bryan L. and Salazar, Jesse J. and Holesinger, Terry G. and King, Graham and Maloy, Stuart A. and Devlin, David J. and Usov, Igor O.},
abstractNote = {In this study, chemical vapor deposition (CVD) techniques have been evaluated for fabrication of free-standing 0.25 mm thick molybdenum tubes with the end goal of nuclear fuel cladding applications. In order to produce tubes with the wall thickness and microstructures desirable for this application, long deposition durations on the order of 50 h with slow deposition rates were employed. A standard CVD method, involving molybdenum pentachloride reduction by hydrogen, as well as a fluidized-bed CVD (FBCVD) method was applied towards these objectives. Characterization of the tubes produced in this manner revealed regions of material with fine grain microstructure and wall thickness suitable for fuel cladding applications, but lacking necessary uniformity across the length of the tubes. Finally, a path forward for the production of freestanding molybdenum tubes that possess the desired properties across their entire length has been identified and can be accomplished by future optimization of the deposition system.},
doi = {10.1016/j.surfcoat.2018.01.063},
journal = {Surface and Coatings Technology},
number = C,
volume = 337,
place = {United States},
year = {Wed Jan 31 00:00:00 EST 2018},
month = {Wed Jan 31 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on January 31, 2019
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Cited by: 1 work
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