Head:

Assoc. Prof. Jacek Szelążek, Ph.D., D.Sc.

phone: (48-22) 826 12 81 ext. 242

room: 41

e-mail: jszela@ippt.gov.pl

Secretary:

Sylwia Czubkowska

phone: (48-22) 826-96-15; (48-22) 826-12-81 ext. 164

room: 81

e-mail: sczubko@ippt.gov.pl

The Department has three Divisions:

• Acoustoelectronics (Assoc. Prof. Piotr Kiełczyński, Ph.D., D.Sc.)
• Acoustic Emission Signal Analysis (Assoc. Prof. Zbigniew Ranachowski, Ph.D., D.Sc.)
  
• Ultrasonic Testing of Materials (Assoc. Prof. Jacek Szelążek, Ph.D., D.Sc.)

and

• Laboratory of Surface Waves (Prof. Eugeniusz Danicki, Ph.D., D.Sc.)

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Staff:

Professor:

Eugeniusz Danicki, Ph.D., D.Sc.

Associate Professors:

Adam Ciarkowski, Ph.D., D.Sc.

Piotr Kiełczyński, Ph.D., D.Sc.

Zbigniew Ranachowski, Ph.D., D.Sc.

Jacek Szelążek, Ph.D., D.Sc.

Senior Researchers:

Mikołaj Aleksiejuk, Ph.D.

Sławomir Mackiewicz, Ph.D.

Przemysław Ranachowski, Ph.D.

Jurij Tasinkiewicz, Ph.D.

Graduates:

Andrzej Balcerzak, Ph.D.

Piotr Gutkiewicz, Ph.D.

Andrzej Brokowski, M.Sc.

Tomasz Dębowski, M.Sc.

Marek Szalewski, M.Sc.

Krzysztof Mizerski

Technical staff:

Tomasz Dominiewski, Tech.

Tadeusz Krasicki, Tech.

Jacek Ściborowski, Tech.

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Current Research Activities:

• Ultrasonic nondestructive testing.
• Ultrasonic stress measurements.
• Relations between the parameters of structures and the elasticity constants of ceramic and composite materials investigated by ultrasonic measurements.
• Investigation the effects of pseudoplasticity of ceramic materials by acoustic emission method.
• Crispness testing of cereal-based food.
• Acoustic emission measurements in metal shaping processes, friction process in tribometers and damage monitoring in constructional elements under mechanical load.
• Structure investigations of liquids, polymer and supramolecular solutions by application of shear and longitudinal ultrasonic waves.
• Ultrasonic measurements of viscosity of liquid systems (homogeneous liquids, emulsions, suspensions and other multiphase systems).
• Acoustic fields of ultrasonic transducers with non- homogeneous distribution of vibration.
• Investigation of Langmuir-Blodgett films properties and their application for the surface acoustic wave (SAW) sensors.
• Acoustic surface waves (Love, Bluestein-Gulyaev) and bulk shear waves for viscosity measurements of resins and liquid crystals.
• Studying the physical properties and technology of nanolayers using acoustic methods.
• Development of new methods, instrumentation and computer software for nondestructive acoustic and electromagnetic measurements of materials and constructions properties.
• Acoustical sensors for detection and concentration measurements of chemical compounds (particularly flammable and harmful).
• Adaptation of acoustic methods for estimation of ceramics technology, food quality testing, chemical processes and pollution of environment.
• Design of the equipment and the experimental setups for the measurements of the acoustic emission.
• Electronic applications of surface waves in piezoelectrics: theoretical and experimental research - applications to radioelectronics systems, filters, transducers of surface waves, etc.
• Propagation and scattering of electromagnetic signals in real wave conducting structures.

Key Words:

• ultrasonic waves, acoustic surface waves, shear waves, acoustic emission, ultrasonic measurements, nondestructive testing, digital processing of acoustic signals, phase transition, sol-gel processes, gelation, food quality testing, ultrasonic transducers, nanolayers, structure of ceramic materials, elastic constants of ceramics, piezoelectric ceramics, computer software for nondestructive testing, punching of steel, friction processes, acoustic chemical sensors, viscosity of liquid systems, acoustic properties of liquid crystals, monitoring of technological processes using acoustic emissions, acoustic, setup for measurements, Langmuir-Blodgett films, polish speech synthesis, rehabilitation of speech, speech pathology, electromagnetic waves/signals - propagation and diffraction, surface acoustic waves, transducers of surface waves, piezoelectrics, thermoelastic waves in composites, thermodiffusion, thermo-piezoelectric composites