Institute of Materials Research
Topic
Development of high – entropy ceramics: modelling, processing, characterization and testing
PhD. program
Advanced Materials
Year of admission
2024
Name of the supervisor
prof. RNDr. Ján Dusza, DrSc.
Contact:
Receiving school
Prírodovedecká fakulta UPJŠ
Annotation
The dissertation work is focused on the development and characterization of High – Entropy Structural Ceramics with improved room and high/ultra-high temperature properties suitable for extreme operating conditions in different
areas of industry. Systems based on ternary carbides and nitrides mixed in equimolar concentrations to reach the maximum molar configurational entropy with structural order and chemical disorder will be developed applying advanced modelling methods - numerical simulation, machine learning, etc., processing routes as high – energy milling, spark plasma sintering or hot – pressing. The developed systems will be tested using advanced methods as micro/nano – mechanical tests, tribology, strength/toughness tests, thermal shock, oxidation, ablation tests, etc. and characterized by SEM, EBSD, TEM/HREM, AFM etc. The proposed dissertation work will put forward a systematic study of high-entropy ceramics based on ternary carbides and nitrides in in the wide range and so completely, that new original results in this field of material science can be expected.
areas of industry. Systems based on ternary carbides and nitrides mixed in equimolar concentrations to reach the maximum molar configurational entropy with structural order and chemical disorder will be developed applying advanced modelling methods - numerical simulation, machine learning, etc., processing routes as high – energy milling, spark plasma sintering or hot – pressing. The developed systems will be tested using advanced methods as micro/nano – mechanical tests, tribology, strength/toughness tests, thermal shock, oxidation, ablation tests, etc. and characterized by SEM, EBSD, TEM/HREM, AFM etc. The proposed dissertation work will put forward a systematic study of high-entropy ceramics based on ternary carbides and nitrides in in the wide range and so completely, that new original results in this field of material science can be expected.