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Title: Spark Plasma Sintering of W-UO2 Cermets

Abstract

About 50 vol.% 3 um depleted uranium dioxide (UO2) powder was encapsulated within a tungsten super alloy matrix produced from sub-micron tungsten powders using the Spark Plasma Sintering (SPS) process. An additive of 25 atom-percent (at.%) rhenium was included within the tungsten matrix to improve the ductility and fracture toughness of the ceramic–metallic (cermet) matrix. Cermet fabrication to 97.9% of the theoretical cermet density was achieved by sintering at 1500 degrees C with 40 MPa of applied pressure for 20 min. The results presented are from the first known trials of W–UO2 and nuclear cermet production via SPS.

Authors:
;
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1056085
Report Number(s):
INL/JOU-11-24274
Journal ID: ISSN 0022-3115; TRN: US1300015
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Journal Article
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 433; Journal Issue: 1 - 3; Journal ID: ISSN 0022-3115
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERMET; Fuels; Generator; Heat Source; Materials; Nuclear; Power; Radioisotope; Space; Spark Plasma Sintering; SPS; Waste

Citation Formats

O'Brien, R C, and Jerred, N D. Spark Plasma Sintering of W-UO2 Cermets. United States: N. p., 2013. Web. doi:10.1016/j.jnucmat.2012.08.044.
O'Brien, R C, & Jerred, N D. Spark Plasma Sintering of W-UO2 Cermets. United States. https://doi.org/10.1016/j.jnucmat.2012.08.044
O'Brien, R C, and Jerred, N D. 2013. "Spark Plasma Sintering of W-UO2 Cermets". United States. https://doi.org/10.1016/j.jnucmat.2012.08.044.
@article{osti_1056085,
title = {Spark Plasma Sintering of W-UO2 Cermets},
author = {O'Brien, R C and Jerred, N D},
abstractNote = {About 50 vol.% 3 um depleted uranium dioxide (UO2) powder was encapsulated within a tungsten super alloy matrix produced from sub-micron tungsten powders using the Spark Plasma Sintering (SPS) process. An additive of 25 atom-percent (at.%) rhenium was included within the tungsten matrix to improve the ductility and fracture toughness of the ceramic–metallic (cermet) matrix. Cermet fabrication to 97.9% of the theoretical cermet density was achieved by sintering at 1500 degrees C with 40 MPa of applied pressure for 20 min. The results presented are from the first known trials of W–UO2 and nuclear cermet production via SPS.},
doi = {10.1016/j.jnucmat.2012.08.044},
url = {https://www.osti.gov/biblio/1056085}, journal = {Journal of Nuclear Materials},
issn = {0022-3115},
number = 1 - 3,
volume = 433,
place = {United States},
year = {Fri Feb 01 00:00:00 EST 2013},
month = {Fri Feb 01 00:00:00 EST 2013}
}