Fe-Al based composite reinforced with ultra-fine Al2O3 oxides for high temperature applications
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Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
Department of Mechanical Engineering, Imperial College London, London, UK
Military University of Technology, Faculty of Advanced Technologies and Chemistry, Warsaw, Poland
Submission date: 2021-03-24
Final revision date: 2021-05-10
Acceptance date: 2021-05-13
Online publication date: 2021-07-21
Publication date: 2021-07-25
Corresponding author
Mateusz Kopec   

Department of Experimental Mechanics, Institute of Fundamental Technological Research Polish Academy of Sciences, 5B Pawinskiego St., 02-106, Warsaw, Poland
Journal of Theoretical and Applied Mechanics 2021;59(3):509-513
In this paper, an Fe-Al based composite reinforced with ultra-fine Al2O3 oxides was obtained through sintering of aluminium, iron and mullite ceramic powders using self-propagated high temperature synthesis (SHS). The powder mixture with a 50%wt. content of the ceramic reinforcement was cold pressed and subsequently subjected to the sintering process in vacuum at 1200◦C for 25 minutes under external loading of 25 kN. The complex microstructure of the Fe-Al matrix reinforced with ultra-fine Al2O3 oxides was found to be desired in high temperature applications since only 3% of the relative weight gain was observed after 100 hours of annealing at 900◦C.
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