The behaviour of control rod absorber under irradiation
Identifieur interne : 014794 ( Main/Repository ); précédent : 014793; suivant : 014795The behaviour of control rod absorber under irradiation
Auteurs : RBID : Pascal:00-0013281Descripteurs français
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Abstract
Increase of rod diameters and cracking of PWR control rod claddings may occur in operation. In order to understand the contribution of the absorber properties to this damage, EDF and FRAMATOME launched a programme of examinations concerning the silver-indium-cadmium alloy constituting the absorber bars. Density measurements and microstructural investigations such as micrography, microanalysis were carried out in the EDF Hot Laboratory, X-ray diffraction was performed by CEA. The results show that transmutations induce chemical modifications inside the fcc alloy and, further, formation of an hcp phase similar to the ζ phase of the silver alloys. The chemical and crystallographic changes account for the major part of the absorber swelling.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">The behaviour of control rod absorber under irradiation</title><author><name sortKey="Bourgoin, J" uniqKey="Bourgoin J">J. Bourgoin</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Electricité de France, Groupe des Laboratoires, BP23</s1><s2>37420 Avoine</s2><s3>FRA</s3><sZ>1 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Région Centre</region><settlement type="city">Avoine</settlement></placeName></affiliation></author><author><name sortKey="Couvreur, F" uniqKey="Couvreur F">F. Couvreur</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>CEA-Saclay, Service d'Etude des Matériaux Irradiés</s1><s2>91191 Gif/Yvette cedex</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Gif/Yvette</settlement></placeName></affiliation></author><author><name sortKey="Gosset, D" uniqKey="Gosset D">D. Gosset</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>CEA-Saclay, Service d'Etude des Matériaux Irradiés</s1><s2>91191 Gif/Yvette cedex</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Gif/Yvette</settlement></placeName></affiliation></author><author><name sortKey="Defoort, F" uniqKey="Defoort F">F. Defoort</name><affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Framatome Nuclear Fuel, 10 rue J. Récamier</s1><s2>69456 Lyon</s2><s3>FRA</s3><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Rhône-Alpes</region><settlement type="city">Lyon</settlement></placeName></affiliation></author><author><name sortKey="Monchanin, M" uniqKey="Monchanin M">M. Monchanin</name><affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Framatome Nuclear Fuel, 10 rue J. Récamier</s1><s2>69456 Lyon</s2><s3>FRA</s3><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Rhône-Alpes</region><settlement type="city">Lyon</settlement></placeName></affiliation></author><author><name sortKey="Thibault, X" uniqKey="Thibault X">X. Thibault</name><affiliation wicri:level="3"><inist:fA14 i1="04"><s1>Electricité de France, SEPTEN, 12 14 avenue Dutriévoz</s1><s2>69628 Villeurbanne</s2><s3>FRA</s3><sZ>6 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Rhône-Alpes</region><settlement type="city">Villeurbanne</settlement></placeName></affiliation></author></titleStmt><publicationStmt><idno type="inist">00-0013281</idno><date when="1999">1999</date><idno type="stanalyst">PASCAL 00-0013281 INIST</idno><idno type="RBID">Pascal:00-0013281</idno><idno type="wicri:Area/Main/Corpus">013F13</idno><idno type="wicri:Area/Main/Repository">014794</idno></publicationStmt><seriesStmt><idno type="ISSN">0022-3115</idno><title level="j" type="abbreviated">J. nucl. mater.</title><title level="j" type="main">Journal of nuclear materials</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorber</term><term>Cadmium</term><term>Control rod</term><term>Damaging</term><term>Indium</term><term>Microstructure</term><term>Nuclear reactor</term><term>Pressurized water reactor</term><term>Silver</term><term>Swelling</term><term>Ternary alloy</term><term>X ray diffraction</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Réacteur nucléaire</term><term>Réacteur eau pressurisée</term><term>Barre contrôle</term><term>Absorbeur</term><term>Endommagement</term><term>Microstructure</term><term>Gonflement</term><term>Alliage ternaire</term><term>Argent</term><term>Indium</term><term>Cadmium</term><term>Diffraction RX</term></keywords><keywords scheme="Wicri" type="concept" xml:lang="fr"><term>Réacteur nucléaire</term><term>Argent</term><term>Cadmium</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Increase of rod diameters and cracking of PWR control rod claddings may occur in operation. In order to understand the contribution of the absorber properties to this damage, EDF and FRAMATOME launched a programme of examinations concerning the silver-indium-cadmium alloy constituting the absorber bars. Density measurements and microstructural investigations such as micrography, microanalysis were carried out in the EDF Hot Laboratory, X-ray diffraction was performed by CEA. The results show that transmutations induce chemical modifications inside the fcc alloy and, further, formation of an hcp phase similar to the ζ phase of the silver alloys. The chemical and crystallographic changes account for the major part of the absorber swelling.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0022-3115</s0></fA01><fA02 i1="01"><s0>JNUMAM</s0></fA02><fA03 i2="1"><s0>J. nucl. mater.</s0></fA03><fA05><s2>275</s2></fA05><fA06><s2>3</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>The behaviour of control rod absorber under irradiation</s1></fA08><fA11 i1="01" i2="1"><s1>BOURGOIN (J.)</s1></fA11><fA11 i1="02" i2="1"><s1>COUVREUR (F.)</s1></fA11><fA11 i1="03" i2="1"><s1>GOSSET (D.)</s1></fA11><fA11 i1="04" i2="1"><s1>DEFOORT (F.)</s1></fA11><fA11 i1="05" i2="1"><s1>MONCHANIN (M.)</s1></fA11><fA11 i1="06" i2="1"><s1>THIBAULT (X.)</s1></fA11><fA14 i1="01"><s1>Electricité de France, Groupe des Laboratoires, BP23</s1><s2>37420 Avoine</s2><s3>FRA</s3><sZ>1 aut.</sZ></fA14><fA14 i1="02"><s1>CEA-Saclay, Service d'Etude des Matériaux Irradiés</s1><s2>91191 Gif/Yvette cedex</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></fA14><fA14 i1="03"><s1>Framatome Nuclear Fuel, 10 rue J. 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