Research Programmes
Do you know…
- … the scientists in CEITEC will be researching what happens in the brain when a human has realized that they have made a mistake?
- … there will be nearly 800 scientists in CEITEC?
- … in CEITEC we will be researching how the brain works and why some people are motivated and others are not?
- … thanks to CEITEC most of the diagnostic methods will be cheaper, faster and more comfortable for the patients?
- … 63 research teams will be created in CEITEC?
- … there will be 7 research programmes in CEITEC?
- … there will be more than 1,000 modern instruments in CEITEC?
- … more than 31,000 m2 of new infrastructure will be built in CEITEC?
- … more than 1,500 students will use the CEITEC infrastructure per year?
- … there will be 10 shared laboratories created in CEITEC?
- … CEITEC has 6 partners?
- … work will be carried out on self-cleaning surfaces in CEITEC?
- … CEITEC will co-operate closely with the industrial sector?
- … there will also be international scientists working in CEITEC?
- … CEITEC will support the international mobility of scientists?
- … the scientists in CEITEC are developing a subdermal chip which will analyse some life functions and will inform doctors from a distance?
- … the scientists in CEITEC are working on the development of a device which will enable physiotherapy from a distance?
- … the scientists at CEITEC are working on the development of biosensors?
- … CEITEC will be created in the south-Moravian city of Brno?
Micro and Nanotribology
Prof. Ing. Ivan Křupka, Ph.D.
Research Group Leader
THEMATIC RESEARCH FOCUS
RESEARCH AREAS
- Experimental study of molecular degradation of lubricant
- Real roughness behaviour within lubricated contacts
- Thin film lubrication study under non-steady state conditions
MAIN OBJECTIVES
Research and development of analytical and measurement methods
Development of techniques and methodologies for microscopy, analysis and metrology of nanomaterials/nanostructures, and for diagnostics of their properties – new techniques of nanometrology by SPM, optical methods, combination of more techniques (SEM, AFM, etc.).
CONTENT OF RESEARCH
Research and development of instruments and methods for the investigation of nanomaterials and nanostructures
Tribological and mechanical properties of MEMS/NEMS surfaces and protective coatings
An experimental study of the tribological properties of MEMS/NEMS to determine the infl uence of retarding forces such as adhesion and friction on the performance and reliability of these devices. The materials for MEMS/NEMS must exhibit good microscale tribological properties. Hence, there is a need to develop lubricants and lubrication methods that are suitable for MEMS/NEMS. AFM-based techniques will be combined with optical measurement techniques (colourimetric interferometry, spectroscopic refl ectometry, etc.) to better understand the tribological phenomena taking place in MEMS/NEMS. The investigation of coatings will be focussed on the nanomechanical characterisation of nanoscale components, the quantifi cation of the friction coeffi cient of thin fi lms, the evaluation of interfacial toughness, the study of the mechanical properties of individual phases in nanocomposite materials, the quantifi cation of wear resistance of protective coatings and the characterisation of the mechanical properties of small volumes of viscoelastic materials.
KEY RESEARCH EQUIPMENT
PLANNED RESEARCH INFRASTRUCTURE
Core Facilities
The research group will be one of the users of the equipment available within CEITEC Nanolithography and Nanofabrication and Nanocharacterisation Core Facilities.
Technology Units
Micromechanical/Morphology testing
CURRENT RESEARCH INFRASTRUCTURE
Optical tribometer for very thin measurements based on thin fi lm colourimetric interferometry; high speed camera Phantom V7.1.
MAIN PROJECTS
- Study of lubrication fi lm forming properties of newtonian and non-newtonian lubricants and their rheology (ME09025), Ministry of Education, Youth and Sports, 2009-2012, M. Hartl, Brno University of Technology.
- Effect of surface topography modifi cations on lubrication fi lms effi ciency to deminish friction and wear of machine parts (ME 905), Ministry of Education, Youth and Sports, 2007-2011, I. Křupka, Brno University of Technology.
- The behaviour of surface roughness in lubricated concentrated contacts (GAP101/11/1115), Czech Science Foundation, 2011-2015, I. Křupka, Brno University of Technology.
SELECTED PUBLICATIONS
- KRUPKA, I., HARTL, M. The eff ect of surface texturing on thin EHD lubrication fi lms. Tribology International. 2007, 40(7), p. 1100-1110.
- LIU, Y., WANG, Q., J., WANG, W., HU, Y., ZHU, D., KRUPKA, I., HARTL, M. EHL simulation using the free-volume viscosity model. TRIBOLOGY LETTERS. 2006, 23(1), p. 27-37.
- HARTL, M., KRUPKA, I., FUIS, V., LISKA, M. Experimental study of lubricant fi lm thickness behavior in the vicinity of real asperities passing through lubricated contact. Tribology Transactions. 2004, 47(3), p. 376-385.
- HARTL, M., KRUPKA, I., POLISCUK, R., LISKA, M., MOLIMARD, J., QUERRY, M., VERGNE, P. Thin fi lm colorimetric interferometry. Tribology Transactions. 2001, 44(2), p. 270-276.
- HARTL, M., KRUPKA, I., POLISCUK, R., LISKA, M. An automatic system for real-time evaluation of EHD film thickness and shape based on the colorimetric interferometry. Tribology Transactions. 1999, 42(2), p. 303-309.
EUROPEAN UNION
