Electrophoretic deposition of diffusion barrier titanium oxide coatings for nuclear reactor cladding applications

2013 ◽  
Vol 282 ◽  
pp. 798-808 ◽  
Author(s):  
Vahid Firouzdor ◽  
Jamieson Brechtl ◽  
Benjamin Hauch ◽  
Kumar Sridharan ◽  
Todd R. Allen
Keyword(s):  
Titanium Oxide ◽  
Electrophoretic Deposition ◽  
Diffusion Barrier ◽  
Nuclear Reactor ◽  
Oxide Coatings

Development of Diffusion Barrier Coatings for Mitigation of Fuel-Cladding Chemical Interactions

2012 ◽  
Vol 507 ◽  
pp. 3-7 ◽  
Author(s):  
Vahid Firouzdor ◽  
Lucas Wilson ◽  
Kumar Sridharan ◽  
Brandon Semerau ◽  
Benjamin Hauch ◽  
...  
Keyword(s):  
Diffusion Couple ◽  
Diffusion Barrier ◽  
Nuclear Reactor ◽  
Fuel Cladding ◽  
Oxide Coatings ◽  
Chemical Interactions ◽  
Barrier Coatings ◽  
Deposition Parameters ◽  
Diffusion Characteristics ◽  
Melting Point Eutectic

Fuel Cladding Chemical Interactions (FCCI) in a nuclear reactor occur due to thermal and radiation enhanced inter-diffusion between the cladding and fuel materials, and can have the detrimental effects of reducing the effective cladding wall thickness and the formation of low melting point eutectic compounds. Deposition of diffusion barrier coatings of a thin oxide on the inner surface of the cladding can potentially reduce or delay the onset of FCCI. This study examines the feasibility of using nanofluid-based electrophoretic deposition (EPD) process to deposit coatings of titanium oxide, yttria-stabilized zirconia (YSZ) and vanadium oxide. The deposition parameters, including the nanofluid composition, current, and voltage were optimized for each coating material using test flat substrates of T91 ferritic-martensitic steel. Diffusion characteristics of the coatings were investigated by diffusion couple experiments using the fuel surrogate cerium. These diffusion couple studies performed in the temperature range of 560°C and 585°C showed that the oxide coatings significantly reduce the solid state inter-diffusion between cerium to steel.

Effects of Surface Treatment on Photocattalytic Activity of TiO2 Coatings Using Microarc-Oxidation

2012 ◽  
Vol 454 ◽  
pp. 26-29
Author(s):  
Hui Dong Su ◽  
Zhong Hua Shi
Keyword(s):  
Acetic Acid ◽  
Surface Treatment ◽  
Photocatalytic Degradation ◽  
Titanium Oxide ◽  
Degradation Rate ◽  
Microarc Oxidation ◽  
Oxide Coatings ◽  
Photocatalytic Ability ◽  
Before And After ◽  
Micro Arc Oxidation

Titanium oxide coatings （Ti/TiO2）were formed on the titanium net surface by micro-arc oxidation(MAO) in Na3PO4 solution using an AC power supply. Then the titanium oxide coatings were treated by acetic acid or La(NO3)3 aqueous solution to improve its activity. The structures and photocatalytic ability of titanium oxide coatings before and after surface treatment were characterized and evaluated by XRD, SEM, EDX. It was found that the titanium oxide film is mainly made of titanium and anatase .When acetic acid aqueous concentration is 0.1mol•L-1 and soak time is 6 hour ,the Ti/TiO2 films photocatalytic degradation rate increased from 15% to 33.6%. When La(NO3)3 aqueous concentration is 0.1mol•L-1 and soak time is 12 hour, the Ti/TiO2 films photocatalytic degradation rate increased from 15% to 34.8%.

Reactively Sputter-Deposited Titanium Oxide Coatings with Parallel Penniform Microstructure

2000 ◽  
Vol 12 (5) ◽  
pp. 341-343 ◽  
Author(s):  
J. Rodríguez ◽  
M. Gómez ◽  
J. Lu ◽  
E. Olsson ◽  
C.-G. Granqvist
Keyword(s):  
Titanium Oxide ◽  
Oxide Coatings ◽  
Sputter Deposited

Photo activated performance of titanium oxide coatings deposited by reactive gas impulse magnetron sputtering

2018 ◽  
Vol 349 ◽  
pp. 647-654 ◽  
Author(s):  
W. Pawlak ◽  
M. Jakubowska ◽  
A. Sobczyk-Guzenda ◽  
M. Makówka ◽  
H. Szymanowski ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Titanium Oxide ◽  
Oxide Coatings ◽  
Reactive Gas
Sign in / Sign up

Export Citation Format

Share Document