Мақола

Chemically complex double solid solution MAX phase-based ceramics in the (Ti,Zr,Hf,V,Nb)-(Al,Sn)-C system

Bensu TuncaDepartment of Materials Engineering, Katholieke Universiteit Leuven, Leuven, BelgiumShuigen HuangDepartment of Materials Engineering, Katholieke Universiteit Leuven, Leuven, BelgiumNick GoossensDepartment of Materials Engineering, Katholieke Universiteit Leuven, Leuven, BelgiumKonstantina LambrinouSchool of Computing and Engineering, University of Huddersfield, Huddersfield, UKJef VleugelsDepartment of Materials Engineering, Katholieke Universiteit Leuven, Leuven, Belgium

2022en

ABI

Аннотация

Chemically complex MAX phase-based ceramics in the (Ti,Zr,Hf,V,Nb)-(Al,Sn)-C system were synthesised by reactive hot pressing for 30 min at 1250-1450C under a load of 30 MPa for the first time in this work. The dense bulk ceramics contained chemically complex double solid solution MAX phases, each comprising five M-elements and two A-elements. The predominant 211 (Ti 0.23 ,Zr 0.18 ,Hf 0.20 ,V 0.11 ,Nb 0.28 ) 2 (Al 0.42 ,Sn 0.58 )C MAX phase characterised all ceramics, while the 312 (Ti 0.23 ,Zr 0.31 ,Hf 0.31 ,V 0.08 ,Nb 0.08 ) 3 (Al 0.36 ,Sn 0.64 )C 2 and 211 (Ti 0.26 ,Zr 0.07 ,Hf 0.07 ,V 0.47 ,Nb 0.13 ) 2 (Al 0.66 , Sn 0.34 )C MAX phases were only present in the ceramics sintered at 1350-1450C. A limited amount (4-5 vol%) of parasitic phases (mainly, binary intermetallics) was found in the pseudo-binary carbidefree ceramics sintered at 1350-1450C.

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Идентификаторлар

DOI: 10.1080/21663831.2021.2017043

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