S12: On the Design of Nanolaminated Ternary Transition Metal Carbides/Nitrides (MAX Phases) and Borides (MAB Phases), Solid Solutions thereof, and 2D Counterparts (MXenes, MBenes)

The MAX and MAB phases are thermodynamically stable nanolaminates of early transition metals carbides, nitrides, and borides. The MAX/MAB phases are hexagonal materials with an inherent nanolayered crystal structure that is responsible for an unusual and unique combination of metal-like and ceramic-like properties, such as machinability, good electrical/thermal conductivity, high thermal shock resistance, good oxidation/corrosion resistance, and stiffness at high temperatures. The unique properties of the MAX/MAB phases make them appealing candidate materials for diverse potential industrial applications.

It was shown recently that it is possible to selectively etch atomic metal layers out of the crystal structure and to separate each nanolaminated block of these transition metal compounds to form 2D solids (MXenes, MBenes). Despite their relatively short history, MXenes (the 2D phases resulting from the removal of A layers from the corresponding MAX phases) have attracted attention due to their attractive properties, such as excellent electronic conductivity, surface functionality, and tunability.

This symposium focuses on the design; processing; structure-property relationships; thermal, electrical, optoelectronic, solid lubrication and mechanical properties; stability; oxidation/corrosion resistance; radiation tolerance; as well as envisaged potential applications of these unique nanolaminated compounds in their 2D and 3D forms. In addition, exploratory research on further expanding the chemistry of ternary compounds is invited as well.

Proposed Session Topics

• Design of novel compositions and manufacturing methods
• Methods for improving damage tolerance, oxidation/corrosionand thermal shock resistance
• Novel applications and device fabrication (electrochemical energy storage, biosensors, etc.) of MAX/MAB phases and MXenes/MBenes
• Study of electronic, optical, plasmonic and thermoelectric properties
• Theoretical calculations for designing and predicting thebehavior of MAX/MAB phases and MXenes/MBenes
• Nuclear applications of the MAX phases

Organizers

• Surojit Gupta, University of North Dakota, USA, surojit.gupta@engr.und.edu
• Miladin Radovic, Texas A&M University, USA, mradovic@tamu.edu
• Konstantza Lambrinou, SCK – CEN, Belgium
• Jochen M. Schneider, Uppsala University, Sweden
• Jie Zhang, Institute of Metal Research, Chinese Academy of Sciences, China
• Thierry Cabioch, Université de Poitiers, France
• Sylvain Dubois, Université de Poitiers, France
• Per Eklund, Linköping University, Sweden
• Johanna Rosen, Linköping University, Sweden
• Jesus Gonzalez, RWTH Aachen University, Germany