Microstructure study on Fe/Cr based alloys added with yttrium oxide (Y2o3) prepared via ultrasonic technique for solid oxide fuel cell (Sofc) application.

Feriyanto, Dafit and Idris, Maizlinda Izwana and Sebayang, Darwin and Untoro, P. and Othman, Mohd Ashraf (2013) Microstructure study on Fe/Cr based alloys added with yttrium oxide (Y2o3) prepared via ultrasonic technique for solid oxide fuel cell (Sofc) application. In: 1st International Conference on Mechanical Engineering (iCOME 2013) , 12-14 September 2013, Lombok, Indonesia .

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Abstract

Solid oxide fuel cells (SOFC) are the current research having several potential to obtain high efficiency, high energy-density power generation which operated at relatively higher temperature. Yttrium oxide (Y2O3) contributions at high temperature are accelerating to the development oxide layer of FeCr alloy. The aim of this research is to investigate the microstructure of Fe/Cr added with Y2O3 acting as a reactive element. The purpose is to improve macrostructure of Fe/Cr powders which can be applied at steel industry. In this study the mixing process of Fe/Cr and Y2O3 powder was conducted via ultrasonic treatment at a frequency of 22 kHz, and at two different holding time of 2.5 h and 3.5 h. The particle size of chromium (Cr) can be reduced by ultrasonic treatment at from 60um to 30um through threshing the cluster of Cr particle. It shows that the ultrasonic vibration effectively removes oxides and other contaminates on a surface coating. Therefore, homogeneity of the parent material, segregation, and uniform distribution of second phase were increased.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:solid oxide fuel cells; iron chromium; ultrasonic treatment
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2896-2986 Production of electricity by direct energy conversion
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
ID Code:4361
Deposited By:Normajihan Abd. Rahman
Deposited On:18 Oct 2013 10:46
Last Modified:21 Jan 2015 15:46

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