Method and device for checking and characteristics of a surface layer of a zirconium-alloy element and use for the checking of fuel rods for a nuclear reactor

摘要

PCT No. PCT/FR96/01445 Sec. 371 Date May 6, 1999 Sec. 102(e) Date May 6, 1999 PCT Filed Sep. 17, 1996 PCT Pub. No. WO97/12224 PCT Pub. Date Apr. 3, 1997A sinusoidal voltage is appied to a zirconium alloy clad fuel rod. The current is measured and the impedance is determined to provide a check for the compactness and adhesion of an oxide surface layer on the fuel rod.