Loading...
Search
Search in this resource
sort by
Send to Friend
 Digital Object List
 Bookmark
 Review List
  1. سنتز و پوشش دهی اسپینل 3(O4 (Cu,Coبر روی فولاد زنگ نزن به روش سل - ژل به منظور استفاده در اتصال دهنده های پیل سوختی
سنتز و پوشش دهی اسپینل 3(O4 (Cu,Coبر روی فولاد زنگ نزن به روش سل - ژل به منظور استفاده در اتصال دهنده های پیل سوختی
519 viewed

سنتز و پوشش دهی اسپینل 3(O4 (Cu,Coبر روی فولاد زنگ نزن به روش سل - ژل به منظور استفاده در اتصال دهنده های پیل سوختی

پاک نهاد، پویان Paknahad, Pouyan

Application of Sol-Gel Technique to Synthesis of (Cu,Co)3O4 Spinel on Ferritic Stainless Steel used for Solid Oxide Fuel Cell Interconnects

Paknahad, Pouyan | 2013

519 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 45033 (07)
  4. University: Sharif University of Technology
  5. Department: Materials Science and Engineering
  6. Advisor(s): Askari, Masoud
  7. Abstract:
  8. Due to recent progresses in lowering the temperature of SOFC, using metallic interconnects instead of ceramic interconnects was possible. Among the alloys used for interconnects, ferritic stainless steels (FSS) due to thermal expansion coefficient compatible with other cell components and cheap fabrication, have become the most widely used material for interconnects. Because of improvement of oxidation resistance of these FSSs, many studies have been made on coating of oxides on FSSs and results show that the spinel oxides have the best performance. In this study, the CuCo2O4 performance as coating in SOFC's interconnects was investigated. Coating process used was sol-gel dip coating and raw materials included cobalt nitrate, copper nitrate, citric acid, ethylene glycol and deionized water. For improving the adhesion of coating to the surface, annealing in reductive atmosphere was used. The results show that the coating of CuCo2O4 spinel, can reduce the thickness of oxide scale on the surface of AISI SAE 430 and modify the high temperature behavior of interconnect. On the other hand, it was seen that the CuCo2O4 coating significantly reduce the high temperature electrical resistance of interconnect, so that after 500 hours of oxidation at 800°C, the area specific resistance of the coated sample is significantly lower than the uncoated sample
  9. Keywords:
  10. Solid Oxide Fuel Cell (SOFC) ; Metallic Interconnect ; Sol-Gel Method ; Spinel ; Stainless Steel

 Digital Object List

 Bookmark

No TOC