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Equipment & Services

OLEM is equipped with advanced equipment for mechanical, thermal and rheological characterizations of materials, liquids and solids. Study of polymer nanomaterials, ultrafine films, soft and hard coatings, ceramics and metals for mechatronics, micro and nanoelectronics applications.


  • Micro and Nanomechanics
  • Rheology and Thermal Analyses
  • Processing of Nanocomposites
  • 3D printing


OLEM provides:

Surface mechanical testing at nanoscale: nanoindentation, nanoscratch, nanotribology, adhesion of coatings to the substrate, nanoindentation of soft materials with the tip of Atom Force Microscopy (AFM).

Structure at the surfaces - by AFM and SEM analysis

Surface mechanical testing at microscale: microindentation, friction and wear, coefficient of friction.

Deformation and fracture tests: mechanical strength in tensile, bending, compression and torsion of fibers, films, folia, small samples and electronic details in thermo-chamber (20-170оС). Stretching of ultrafine films by "small punch test".

Rheology in shear and dynamic mode of wide spectra of materials: nanodispersions, polymers, oils, pastes, materials for food industry, cosmetics and pharmacy, dental materials.

Dynamic mechanical thermal analysis (DMTA) in torsion, in wide range of amplitudes and temperature (-80-600оC)

Thermal analysis (DSC and TGA) in air and nitrogen atmosphere.

Thermal conductivity and diffusivity in a temperature range from -100 to 500 oC

Polymer nanocomposite processing - extrusion of filament for 3D printing (1.75 and 3 mm) .

Processing of nanodispersions with graphene, carbon nanotubes and other nanoparticles in liquid phases by high speed mixing and ultrasonic treatment.

Prototyping by FDM 3D printing.

Contacts: Phone (+359-2) 979-6462 ;  979-6481



OLEM facilities for mechanical, rheological and thermal characterizations:

UNMT: Nanomechanical Tests: Nanoindentation and Atom Force Microscopy (Bruker-CETR)

  • Nano Indentation with Berkowich nanoindenter: nanohardness and Young's modulus.
  • Inline imaging of indentation imprints with Atom Force Microscopy (AFM).
  • Nanoindentation with the tip of AFM cantilever: used for fine polymer films and biological materials.
  • Nanostructure of surfaces in scanned and phase modes performed with Atom Force Microscopy.
  • Surface roughness of films and coatings tested by Atom Force Microscopy


UMT: Macro & Micro-mechanical tests (Bruker-CETR)

  • Deformation and fracture, creep and relaxation tests. Mechanical strength and Young's modulus (in tensile, bending, torsion and compression modes), stiffness, toughness, elasticity and plasticity.
  • Deformation tests at different temperatures (20-150oC) - in thermal chamber.
  • Tribology and friction: wear resistance, wear depth, coefficient of friction. Standard tests by "pin on flat" and "ball on disk" in linear and rotation modes.
  • Microindentation test (Vickers and Rockwell indenters) - microhardness, indentation Young's modulus.
  • Micro & Nanoscratch tests: scratch resistance, scratch dept, adhesion of films to a substrate, delamination of coatings.

AR-G2 Rheometer & DMTA (TA Instruments)

  • Rheology of Liquids (in wide viscosity range) - from low viscosity liquids, to polymer melts, dispersions and pastes, oils, paints, adhesives, bio-medical materials, dental materials, cosmetics & pharmaceutics, food industry products.

  • Rheology of Solids - dynamic mechanical thermal analysis (DMTA in torsion).


Thermal analysis, DSC - Q20 (TA Instruments)

  • Differential scanning calorimetry
  • Evaluation of transition temperatures - Tg, Tc, Tm
  • Oxidation induction temperature and time


Thermal analysis, TGA - Q50 (TA Instrumets)

  • Thermogravimetric analysis
  • Thermal stability
  • Thermal degradation


Optical microscopy Leica DM750

  • Visualisation of materials and imaging in transmission mode
  • Magnifications 4× – 100×
  • Imaging software modules and polarization kit


X400 PRO German RepRap 3D printer

  • Fused Deposition Modeling (FDM-FFF) type 3D printer
  • PLA, ABS, PU, PA filament materials application



Light Flash Apparatus, LFA 467 Hyper Flash (NETZSCH)

  • Thermal Conductivity (0.1 - 4000 W/(mK)
  • Thermal Diffusivity (0.01 - 2000 mm2/s)
  • Specific Heat Capacity
  • Temperature range, from -100 to 500oC



Tabletop SEM HIROX SH 4000

  • 30x - 60 000x Magnification
  • SE & BSE Detector
  • 5kV to 30 kV Accelerating voltage
  • 15 nm Resolution







Hysitron TI 980 Nanoindenter


The Hysitron TI 980 TriboIndenter is Bruker's latest, most advanced nanomechanical test instrument that lies at the intersection of maximum performance, flexibility, reliability, usability, and speed.

  • Nanoindentation — hardness, elastic modulus, creep, stress relaxation, fracture toughness, high-speed property mapping
  • Nanotribology — thin film adhesion, friction coefficients, scratch/mar resistance, reciprocating wear
  • SPM Imaging — topography and gradient imaging, nanometer - precision test positioning, friction force imaging
  • Dynamic Nanoindentation — continuous hardness and modulus depth profiling, storage modulus, loss modulus, tan-delta

Modified date:10-03-2022