MANGANESE SPINEL COATINGS TO REDUCE ELECTRICAL CONDUCTIVITY ACTIVATION ENERGY OF INTERCONNECTS

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EBRAHIMIFAR HADI; ZANDRAHIMI MORTEZA

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Seminar Paper

Paper Information

Seminar: IRANIAN FUEL CELL SEMINAR
Year:2010 | Issue:4

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Title

MANGANESE SPINEL COATINGS TO REDUCE ELECTRICAL CONDUCTIVITY ACTIVATION ENERGY OF INTERCONNECTS

Author(s)

EBRAHIMIFAR HADI | ZANDRAHIMI MORTEZA

Keywords

MANGANESE

SOLID OXIDE FUEL CELL (SOFC)

SPINEL

ELECTRICAL CONDUCTIVITY ACTIVATION ENERGY

INTERCONNECT

Abstract

STAINLESS STEEL CAN BE USED AS INTERCONNECTS PLATE IN SOLID OXIDE FUEL CELLS (SOFC) FOR OPERATING TEMPERATURE OF 800OC OR BELOW. UNWANTED REACTIONS BETWEEN THE ALLOY AND OTHER SOFC COMPONENTS DECREASE THE EFFICIENCY OF THESE ENERGY CONVERTORS. ONE APPROACH TO IMPROVE INTERCONNECT PROPERTIES IS TO APPLY SURFACE COATING. IN THIS RESEARCH, AISI 430 FERRITIC STAINLESS STEEL WAS COATED IN A MN-BASE PACK MIXTURE BY PACK CEMENTATION METHOD. ELECTRICAL CONDUCTIVITY OF THE COATED COUPONS WAS MEASURED AS A FUNCTION OF TEMPERATURE BY OXIDIZING THE SAMPLES FROM ROOM TEMPERATURE TO 800OC. ALSO THE ELECTRICAL CONDUCTIVITY HAS BEEN STUDIED AS A FUNCTION OF OXIDATION TIME DURING ISOTHERMAL OXIDATION AT 800OC. RESULTS SHOWED THE INCREASE OF TEMPERATURE CAUSED TO THE DECREASE OF ELECTRICAL CONDUCTIVITY AND ALSO, THE COATING LAYER TRANSFORMED TO MANGANESE SPINELS DURING ISOTHERMAL OXIDATION. THE SPINEL COMPOSITIONS AMELIORATED THE ELECTRICAL CONDUCTIVITY ACTIVATION ENERGY OF COATED COUPONS (0.029 EV) COMPARED TO UNCOATED ONES (0.031 EV).

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APA: Copy

EBRAHIMIFAR, HADI, & ZANDRAHIMI, MORTEZA. (2010). MANGANESE SPINEL COATINGS TO REDUCE ELECTRICAL CONDUCTIVITY ACTIVATION ENERGY OF INTERCONNECTS. IRANIAN FUEL CELL SEMINAR. SID. https://sid.ir/paper/908035/en

Vancouver: Copy

EBRAHIMIFAR HADI, ZANDRAHIMI MORTEZA. MANGANESE SPINEL COATINGS TO REDUCE ELECTRICAL CONDUCTIVITY ACTIVATION ENERGY OF INTERCONNECTS. 2010. Available from: https://sid.ir/paper/908035/en

IEEE: Copy

HADI EBRAHIMIFAR, and MORTEZA ZANDRAHIMI, “MANGANESE SPINEL COATINGS TO REDUCE ELECTRICAL CONDUCTIVITY ACTIVATION ENERGY OF INTERCONNECTS,” presented at the IRANIAN FUEL CELL SEMINAR. 2010, [Online]. Available: https://sid.ir/paper/908035/en

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