Metals and Materials International

, Volume 25, Issue 2, pp 324–332 | Cite as

Integrity of Alumina Catalytic Support Prepared by Anodization in a High Temperature Steam Environment

  • Chaewon Kim
  • Sung Hwan Kim
  • Gokul Obulan Subramanian
  • Changheui JangEmail author
  • Keun Man Park


As a catalytic support for passive autocatalytic recombiner in nuclear power plants, anodic alumina layer was formed on stainless steel 304 by applying either Al or NiAl diffusion coatings on 304SS, followed by anodization and calcination. The anodic alumina had porous and nano-fibrous morphology and showed comparable hydrogen conversion ratio as the conventional wash-coated catalytic support. Integrity of catalytic supports was evaluated by steam oxidation test at 900 °C for 100 h. The wash-coated catalytic support exhibited oxide breakaway and Fe-oxide formation. On the other hand, α-alumina was formed on anodized catalytic support with Al or NiAl diffusion layers, which showed good adherence to the underlying metal substrate.


Catalyst support Anodic alumina Nickel aluminide High temperature steam 



This study was supported by the MOTIE/KETEP of the Republic of Korea (No. 20151520101050). Financial support for three of the authors was provided by the BK-Plus Program of the MSIP/NRF of the Republic of Korea.


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Copyright information

© The Korean Institute of Metals and Materials 2018

Authors and Affiliations

  1. 1.Dept. of Nuclear and Quantum EnigineeringKorea Advanced Institute of Science and TechnologyDaejeonRepublic of Korea
  2. 2.Korea Nuclear Technology Co., Ltd.DaejeonRepublic of Korea

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