Characterization of IT-SOFC non-symmetrical anode sintered through conventional furnace and microwave

Mohadeseh Seyednezhad, Armin Rajabi, Andanastuti Muchtar, Mahendra Rao Somalu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This work investigated the mechanical and electrical properties of NiO-SDC/SDC anode sintered by two different methods: in a microwave at about 1200 °C for 1 h and in a conventional furnace at 1200 °C with a holding time of 1 h (total sintering time of 21 h). Nano-powders Sm0.2Ce0.8O1.9 (SDC) and NiO were mixed using a high-energy ball mill, followed by the co-pressing technique at a compaction pressure of 400 MPa. No binder was used between the layers. The electrical behaviors of all sintered samples were studied using electrochemical impedance spectra in the frequency range of 0.01-105 Hz under 97% H2-3% H2O, an amplitude of 10 mV, and at high temperature range of 600-800 °C. Results indicate that the non-symmetrical NiO-SDC/SDC anode achieved through microwave sintering has finer grain size and higher electrochemical performance. However, hardness and Youngs modulus increased in the samples sintered through a conventional furnace.

Original languageEnglish
Pages (from-to)5663-5669
Number of pages7
JournalCeramics International
Volume41
Issue number4
DOIs
Publication statusPublished - 1 May 2015

Fingerprint

Solid oxide fuel cells (SOFC)
Anodes
Furnaces
Sintering
Microwaves
Ball mills
Powders
Binders
Electric properties
Compaction
Elastic moduli
Hardness
Mechanical properties
Temperature

Keywords

  • A. Microwave processing
  • A. Sintering
  • C. Electrical conductivity
  • E. Fuel cells

ASJC Scopus subject areas

  • Ceramics and Composites
  • Process Chemistry and Technology
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Characterization of IT-SOFC non-symmetrical anode sintered through conventional furnace and microwave. / Seyednezhad, Mohadeseh; Rajabi, Armin; Muchtar, Andanastuti; Somalu, Mahendra Rao.

In: Ceramics International, Vol. 41, No. 4, 01.05.2015, p. 5663-5669.

Research output: Contribution to journalArticle

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