Thermodynamic analysis and experimental verification of interface reactions of iron aluminide/tetragonal zirconia composite
Source abstract
Abstract
This paper described the thermodynamic analysis and experimental verification of interface reactions between iron aluminide intermetallic and tetragonal zirconia. Thermodynamic analysis confirmed that chemical reactions between Fe–Al intermetallic and ZrO2 (3 mol.–%Y2O3 stabilised zirconia) mainly depended on the Al content in Fe–Al intermetallic. For ZrO2(3Y)/Fe3Al composite, the interface reactions to form Al2O3 and ZrAl2 would take place when Al content was >40 at-% in Fe–Al intermetallic, while no interface reaction occurred when using Fe3Al as toughening phase. ZrO2(3Y)/Fe3Al composite was synthesised by hot press sintering to further verify the thermodynamic analysis of interface reactions between iron aluminide intermetallic and tetragonal zirconia. The phase composition, morphology and interface structure of ZrO2(3Y)/Fe3Al were investigated by X-ray diffraction, SEM and TEM. The results show that Fe3Al was thermodynamic stable in ZrO2(3Y) matrix, which was in good agreement with thermodynamically analysis.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Intermetallics and Advanced Alloy Properties · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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