Published December 2015 | Version v1
Journal article Metadata-only

Transmission Electron Microscopy Characterization of Early Pre-Transition Oxides Formed on ZIRLOTM

Creators

  • 1. Pusan National University, Busan (Korea, Republic of)
  • 2. Ulsan National Institute of Science and Technology, Ulsan (Korea, Republic of)

Description

Corrosion of zirconium fuel cladding is known to limit the lifetime and reloading cycles of fuel in nuclear reactors. Oxide layers formed on ZIRLOTM cladding samples, after immersion for 300-hour and 50-day in a simulated primary water chemistry condition (360 .deg. C and 20 MPa), were analyzed by using the scanning transmission electron microscopy (STEM), in-situ transmission electron microscopy (in-situ TEM) with the focused ion beam (FIB) technique, and X-ray diffraction (XRD). Both samples (immersion for 300 hours and 50 days) revealed the presence of the ZrO sub-oxide phase at the metal/oxide interface and columnar grains developed perpendicularly to the metal/oxide interface. Voids and micro-cracks were also detected near the water/oxide interface, while relatively large lateral cracks were found just above the less advanced metal/oxide interface. Equiaxed grains were mainly observed near the water/oxide interface

Additional details

Publishing Information

Journal Title
Corrosion Science and Technology (Online)
Journal Volume
14
Journal Issue
6
Series
22 refs, 13 figs
Journal Page Range
p. 301-312
ISSN
2288-6524

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
Korea, Republic of
INIS RN
47086442
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CLADDING; CORROSION; CRACKS; DETECTION; INTERFACES; OXIDES; REACTORS; TRANSMISSION ELECTRON MICROSCOPY; VOIDS; WATER CHEMISTRY; X-RAY DIFFRACTION
Descriptors DEC
CHALCOGENIDES; CHEMICAL REACTIONS; CHEMISTRY; COHERENT SCATTERING; DEPOSITION; DIFFRACTION; ELECTRON MICROSCOPY; MICROSCOPY; OXYGEN COMPOUNDS; SCATTERING; SURFACE COATING