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Title: Technique for controlling shrinkage distortion in cold-pressed annular pellets

Abstract

A process and apparatus are described for the production of annular fuel pellets comprising locating particulate fuel material in a compaction chamber having side walls, a moveable punch located opposite a fixed member and a frustoconical element having a taper of between about 0.010 to 0.015 inches/inch located in about the center of the chamber. The punch is moved toward the fixed surface to compact the particulate material. The compacted pellet is fired to produce sintered pellets having substantially straight inner side walls essentially parallel to the pellet axis.

Inventors:
;
Issue Date:
OSTI Identifier:
6355399
Application Number:
ON: DE83010514
Assignee:
ERA-08-029616; NTS-83-012043; EDB-83-094358
DOE Contract Number:  
AC11-76PN00014
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; ANNULAR FUEL ELEMENTS; FABRICATION; FUEL PELLETS; COMPACTING; FUEL ELEMENTS; PELLETS; REACTOR COMPONENTS; 220300* - Nuclear Reactor Technology- Fuel Elements

Citation Formats

Johnson, R.G.R., and Burke, T.J. Technique for controlling shrinkage distortion in cold-pressed annular pellets. United States: N. p., 1982. Web.
Johnson, R.G.R., & Burke, T.J. Technique for controlling shrinkage distortion in cold-pressed annular pellets. United States.
Johnson, R.G.R., and Burke, T.J. Mon . "Technique for controlling shrinkage distortion in cold-pressed annular pellets". United States.
@article{osti_6355399,
title = {Technique for controlling shrinkage distortion in cold-pressed annular pellets},
author = {Johnson, R.G.R. and Burke, T.J.},
abstractNote = {A process and apparatus are described for the production of annular fuel pellets comprising locating particulate fuel material in a compaction chamber having side walls, a moveable punch located opposite a fixed member and a frustoconical element having a taper of between about 0.010 to 0.015 inches/inch located in about the center of the chamber. The punch is moved toward the fixed surface to compact the particulate material. The compacted pellet is fired to produce sintered pellets having substantially straight inner side walls essentially parallel to the pellet axis.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {6}
}