If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Ni-Containing Conducting Ceramic as an Oxidation Protective Coating on Metallic Interconnects by Aerosol Deposition

$48.00 plus tax (Refund Policy)

Download / Buy Article:

Abstract:

Thick (∼5 m) conducting perovskite LaNiO3 films were deposited on ferritic stainless steel (SS) by aerosol deposition (AD) for use as an oxidation resistance coating layer in the metallic interconnector of a solid oxide fuel cell (SOFC). The microstructural evolution and electrical resistivity of the LaNiO3-coated SS at the SOFC operating temperature (800°C) were examined. The coated oxide layers were fairly dense without pores or cracks, and good adhesion was maintained, even after oxidation at 800°C for 1000 h. The interface oxides formed between LaNiO3 and SS consisted of Ni and Mn-containing spinel and a Cr-rich oxide layer. The initial area specific resistance (ASR) of the LaNiO3-coated SS was 2.68 mΩ·cm2, which was increased to 7.34 mΩ·cm2 after post heat treatment at 800°C for 1000 h. The ASR of the LaNiO3-coated SS was ∼30% lower than that of the (La0.8Sr0.2)MnO3-coated SS post heat treated for the same time. Ni2+ substitution for Mn3+ in the octahedral sites of the spinel structures appears to decrease the resistivity of the interface oxide layer, and increase the long-term stability of the ASR at high temperatures.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2010.03646.x

Affiliations: Functional Ceramics Group, Functional Materials Division, Korea Institute of Materials Science, Gyeongnam 641-831, Korea

Publication date: June 1, 2010

Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more