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Title: Method for testing the strength and structural integrity of nuclear fuel particles

Abstract

An accurate method for testing the strength of nuclear fuel particles. Each particle includes an upper and lower portion, and is placed within a testing apparatus having upper and lower compression members. The upper compression member includes a depression therein which is circular and sized to receive only part of the upper portion of the particle. The lower compression member also includes a similar depression. The compression members are parallel to each other with the depressions therein being axially aligned. The fuel particle is then placed between the compression members and engaged within the depressions. The particle is then compressed between the compression members until it fractures. The amount of force needed to fracture the particle is thereafter recorded. This technique allows a broader distribution of forces and provides more accurate results compared with systems which distribute forces at singular points on the particle.

Inventors:
 [1]
  1. Idaho Falls, ID
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
OSTI Identifier:
870123
Patent Number(s):
US 5459767
Assignee:
Lockheed Idaho Technologies Company (Idaho Falls, ID)
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; testing; strength; structural; integrity; nuclear; fuel; particles; accurate; particle; upper; portion; placed; apparatus; compression; depression; therein; circular; sized; receive; similar; parallel; depressions; axially; aligned; engaged; compressed; fractures; amount; force; fracture; thereafter; recorded; technique; allows; broader; distribution; forces; provides; results; compared; systems; distribute; singular; axially aligned; nuclear fuel; upper portion; structural integrity; fuel particles; testing apparatus; fuel particle; axially align; /376/73/100/

Citation Formats

Lessing, Paul A. Method for testing the strength and structural integrity of nuclear fuel particles. United States: N. p., 1995. Web.
Lessing, Paul A. Method for testing the strength and structural integrity of nuclear fuel particles. United States.
Lessing, Paul A. Sun . "Method for testing the strength and structural integrity of nuclear fuel particles". United States. https://www.osti.gov/servlets/purl/870123.
@article{osti_870123,
title = {Method for testing the strength and structural integrity of nuclear fuel particles},
author = {Lessing, Paul A},
abstractNote = {An accurate method for testing the strength of nuclear fuel particles. Each particle includes an upper and lower portion, and is placed within a testing apparatus having upper and lower compression members. The upper compression member includes a depression therein which is circular and sized to receive only part of the upper portion of the particle. The lower compression member also includes a similar depression. The compression members are parallel to each other with the depressions therein being axially aligned. The fuel particle is then placed between the compression members and engaged within the depressions. The particle is then compressed between the compression members until it fractures. The amount of force needed to fracture the particle is thereafter recorded. This technique allows a broader distribution of forces and provides more accurate results compared with systems which distribute forces at singular points on the particle.},
doi = {},
url = {https://www.osti.gov/biblio/870123}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

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Works referenced in this record:

Applicability of Weibull analysis for brittle materials
journal, September 1983


Structural Characterization of HTGR Pyrocarbon Fuel Particle Coatings
journal, May 1977


A technique for measuring the strength of high temperature reactor fuel particle coatings
journal, June 1972


Strength of Pyrolytic SiC Coatings of Fuel Particles for High-Temperature Gas-Cooled Reactors
journal, January 1973


The Brittle Ring Test: A method for measuring strength and young's modulus on coatings of HTR fuel particles
journal, November 1976


Nuclear Fuel Coated Particle Development in the Reactor Fuel Element Laboratories of the U.K. Atomic Energy Authority
journal, September 1977


Crushing strength of irradiated Triso coated fuel particles
journal, December 1983


Raman Spectral Characterization of Silicon Carbide Nuclear Fuel Coatings
journal, June 1983