Faculty of Mechanical Engineering and Naval Architecture, Chair of Materials and Tribology

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Main research field

Materials science, Tribology, Mechanical properties measurement, Reference force standard, Mathematical modelling, Ceramics and ceramic coatings, Sea shells, Nanofluids, Dynamic mechanical analysis, Polymers, Composites, Composites with natural fibers, Aluminium foams.

Specific research areas

Materials science, Tribology, Force and hardness measurement, Improvement of reference force standard measurement capability, Mathematical modelling, Neural networks, Engineering ceramics, Ceramic coatings, Corrosion, Thermodynamic adsorption, Water pollution treatment, Mollusc sea shells, Thermal properties of nanofluids, Dynamic mechanical analysis of polymers and composites, Polymer matrix composites with natural fibres, Manufacturing and testing of aluminium foams.

Techniques/methods

  • Testing mechanical properties,
  • Testing tribological properties,
  • Spectrometric analysis,
  • Scanning electron analysis,
  • Slip casting,
  • Sintering of ceramics,
  • Mechanical spectroscopy,
  • Permeation,
  • Mathematical modelling of structure,
  • Properties and heat treatment.

Equipment

reference force standard machine, reference hardness standard machine, sectioning and grinding-polishing metallography equipment with consumables, optical microscopes (Olympus BH2 and GX51, with camera and image analysis software), scanning electron microscope (VEGA TESCAN TS5136LS) with Oxford EDS detector and sputter coater, digital microscope (Dino-Lite) with image analysis software, Comsol software, Cambridge engineering selector (CES Edupack), Matlab, IVF Quench Smart System, Thermal conductometer, dynamic mechanical analyzer, UV spot light source, optical microscope with polarized light, time-lag permeation apparatus, equipment for mechanical tests (hardness, tensile, bending, impact), glow discharge optical emission spectrometry (GDS 850 A, Leco), flame atomic absorption spectrometry (AA 6800 Shimadzu), programmable rheometer (DV-III ultra, Brookfield), electrically heated high temperature furnace (up to 1800 °C, Nabertherm), planetary ball mill (PM100, Retsch), Zetasizer 3000 (Malvern).

Certificates

ISO 17025 - General requirements for the competence of testing and calibration laboratories

Technology keywords

  • Simulation, Simulation Engineering
  • Ceramic Materials and Powders
  • Composite materials
  • Metals and Alloys
  • Plastics, Polymers
  • Properties of Materials, Corrosion/Degradation
  • Reference Materials

Services offered

  • Material characterisation (testings, measurements, various quantitative and / or qualitative analyses)
  • Use of specialized equipment
  • Diagnostics
  • Quality control
  • Technical proposals
  • Teaching and training
  • Technique / method optimization and testing
  • Calibration of force and hardness testing machines

Market sectors

  • Oil & Gas Producers
  • Oil Equipment, Services & Distribution
  • Alternative Energy
  • Building Materials & Fixtures
  • Heavy Construction
  • Electronic & Electrical Equipment
  • Industrial Engineering
  • Industrial Transportation
  • Support Services
  • Automobiles & Parts
  • Personal Goods
  • Electricity
  • Gas, Water & Multiutilities
  • Technology Hardware & Equipment

Short summary (English)

The Chair is involved in testing of metals, ceramics, polymers and composites, improving the properties of known materials, research and application of new materials, development and application of heat treatment processes, coating and modifications of surfaces. A significant progress is made in the development and research of new materials: metal foams, technical ceramics and wood-polymer composites. The Laboratory for mechanical properties testing is the holder of the national standard of force. This laboratory carries out the research for improving measurement traceability and for decreasing the measurement uncertainty for force and hardness. Structure and properties of technical ceramics are investigated. Technical ceramic is shaped by slip casting using stable suspensions, with determined rheological properties, with the optimized sintering process. Ceramics corrosion, mechanical and tribological properties and structure is analyzed. Functional nanostructured sol-gel films based on TiO2 are syntheses and applied, and the advanced oxidation processes is studied. The dynamic mechanical properties of polymer films, permeation of small gases through polymer films, and UV-effect on polymers can be determined. The causes of wear or fracture of engineering parts are also effectively being solved at the Chair. Data obtained form laboratory material testing of properties and structure is also used in the application of simulation methods in materials research. Several artificial intelligence methods have been successfully applied in predicting materials properties, structure or heat treatment parameters. Quantitative methods for material selection are available and used.

Short summary (Croatian)

Na Katedri se ispituju svojstva metalnih, polimernih i kompozitnih materijala, poboljšavaju svojstva postojećih materijala, istražuju i primjenjuju novi materijali, razvijaju i primjenjuju postupci toplinske obrade te modificiranja i prevlačenja površina. Značajan je napredak postignut u razvoju u istraživanju novih materijala, kao što su metalne pjene, tehničke keramike te kompoziti drva i polimera. Laboratorij za ispitivanje mehaničkih svojstava nositelj je nacionalnog etalona sile te kontinuirano provodi istraživanja u cilju poboljšanja mjeriteljske sljedivosti i smanjenja mjerne nesigurnosti za veličine sila i tvrdoća. Na katedri se istražuje struktura i svojstava tehničke keramike. Tehnička keramika se oblikuje lijevanjem, pripremaju stabilne suspenzije, određuju reološka svojstava i optimiraju procesi sinteriranja. Određuje se korozija keramike te mehanička i tribološka svojstava, uz povezivanje sa strukturom. Sintetiziraju se i primjenjuju funkcionalni nanostrukturirani sol-gel filmovi na bazi TiO2 naprednim oksidacijskim procesima. Karakteriziraju se i nanostrukturirani materijali. Provodi se dinamička mehanička analiza polimernih folija, permeacija malih molekula kroz polimerne folije te utjecaj UV-zračenja na polimere. Na Katedri se također uspješno rješavaju slučajevi trošenja ili loma strojnih dijelova. Podaci prikupljeni laboratorijskim ispitivanjima strukture svojstava materijala se koriste i u suvremenim računalnim metodama simulacija u istraživanju materijala. Razne kvantitativne metode izbora materijala te metode umjetne inteligencije se uspješno primjenjuju u određivanju svojstava i strukture materijal i parametara toplinske obrade.

Last update: 24.11.2014. 15:44:28

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