Institute of Materials Science

Faculty of Computer Science and Materials Science

Department of Amorphous and Nanocrystalline Materials

75 Pułku Piechoty 1A Str. 
41-500 Chorzów, Poland 
tel. (+48) 32 3497 515

 

Head of Department: prof. Grzegorz Haneczok
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. 
room: H/2/17
tel. (32) 3497 530

 

 

Scope of Activities

Scientific activity is focused on the advanced multifunctional materials including soft magnetic materials, magnetic composites, magnetic nanopowders and ferroelectric materials. In the group of magnetic materials iron based amorphous and nanocrystalline alloys are extensively explored. Special attention is paid to the so called enhancement of soft magnetic properties effect, structural relaxation and nanocrystallization. The aim is to find correlations between material microstructure (e.g. the relaxed amorphous phase) and physical properties (permeability, magnetic loss, magnetostriction, magneto-impedance effect, resistivity etc.). In the group of powder materials we produce ferrite nanopowders of spinel structure and for such powders superparamagnetism and/or super spin glass like effects are extensively examined. Moreover, the powder is also used as a component of magnetic composite materials for which the usage parameters are determined.

In the field of coating materials we concentrate on mechanical properties i.e. on determination of the so-called apparent Young modulus (coating – substrate) and the adhesion coefficient via measuring and analyzing the flexural vibrations of a rectangular sample.

In the group of ferroelectric multifunctional materials linear and nonlinear dielectric response of materials with various types of electric ordering is investigated. This includes systems such as ferroelectrics, dipolar glasses and relaxor ferroelectrics. Our equipment enables investigations of dynamics of elementary polarization processes in dielectric materials with potential applications in electronics as well as an experimental verification of available theoretical models.

 

Research Equipment

  • Vibrating sample magnetometer (VSM and ACMS - Quantum Design), temperature range 2 – 360 K and field up to 7 T
  • Magnetic balance, temperature range 300 – 1000 K, field up to 1 T
  • Kerr microscope with magnetometer – Evico.
  • Fluxmeter - Lake Shore
  • RLC meter - Agilent E4980A frequency range 20 Hz – 2 MHz
  • Vibrating reed apparatus (frequency range 30 – 300 Hz)
  • Unique susceptometer for measurements of the non-linear dielectric susceptibility in the frequency range of 1 – 104 Hz of the probing electric field
  • Broad band (10-5£ f £ 107 Hz, 6£T£600 K) system for measurements of the linear dielectric susceptibility.

 

Research offering

  • Measurements of soft magnetic properties (magnetization curves up to 7 T, magnetization vs. temperature, permeability vs. magnetic field, magneto-impedance effect, magnetic loss etc.) 
  • Mechanical properties of coatings materials (apparent Young modulus and adhesion coefficient) 
  • Measurements of linear dielectric susceptibility in the frequency range from 10-5 Hz to 107 Hz and temperature range 6K - 600 K
  • Measurements of non-linear dielectric susceptibility in the frequency range from 1 Hz to 104 Hz.

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