EP 0852714 A1 19980715 - METHOD AND DEVICE FOR TESTING THE FEATURES OF A SURFACE LAYER ON A ZIRCONIUM ALLOY ELEMENT, AND USE THEREOF FOR MONITORING NUCLEAR REACTOR FUEL PENCILS
Title (en)
METHOD AND DEVICE FOR TESTING THE FEATURES OF A SURFACE LAYER ON A ZIRCONIUM ALLOY ELEMENT, AND USE THEREOF FOR MONITORING NUCLEAR REACTOR FUEL PENCILS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR KONTROLLE DER EIGENSCHAFTEN EINER OBERFLÄCHE EINES ELEMENTES EINER ZIRKONIUMLEGIERUNG,SOWIE ANWENDUNG FÜR DIE KONTROLLE DER BRENNELEMENTE VON KERNKRAFTWERKEN
Title (fr)
PROCEDE ET DISPOSITIF DE CONTROLE DES CARACTERISTIQUES D'UNE COUCHE SUPERFICIELLE D'UN ELEMENT EN ALLIAGE DE ZIRCONIUM ET UTILISATION POUR LE CONTROLE DE CRAYONS DE COMBUSTIBLE POUR UN REACTEUR NUCLEAIRE
Publication
Application
Priority
- FR 9601445 W 19960917
- FR 9511332 A 19950927
Abstract (en)
[origin: WO9712224A1] A sinusoidal voltage V is applied between two measurement points on two zirconium alloy elements (2, 2'), the strength I of a sinusoidal current flowing between the measurement points is measured, the impedance Z = V/I of the measurement area of the elements (2, 2') is determined, and the resulting impedance is compared with at least one reference value. The testing device comprises a cell (5) containing an electrolyte (6) in which the two zirconium alloy elements (2, 2') are immersed, as well as a power supply and impedance measurement module (16). A measurement may be performed on a single element (2) by means of an electrode immersed in the electrolyte (6).
IPC 1-7
IPC 8 full level
G01N 17/02 (2006.01); G01N 27/02 (2006.01); G01N 27/26 (2006.01); G21C 17/06 (2006.01)
CPC (source: EP US)
G01N 17/02 (2013.01 - EP US); G01N 27/02 (2013.01 - EP US)
Citation (search report)
See references of WO 9712224A1
Designated contracting state (EPC)
BE DE ES FR GB SE
DOCDB simple family (publication)
WO 9712224 A1 19970403; CN 1198212 A 19981104; EP 0852714 A1 19980715; FR 2739187 A1 19970328; FR 2739187 B1 19971219; JP H11512815 A 19991102; TW 364120 B 19990711; US 6099718 A 20000808; ZA 968061 B 19980325
DOCDB simple family (application)
FR 9601445 W 19960917; CN 96197303 A 19960917; EP 96931863 A 19960917; FR 9511332 A 19950927; JP 51316697 A 19960917; TW 85113705 A 19961109; US 2999598 A 19980313; ZA 968061 A 19960925