Objectives and activities

2013

Objectives

Activities

1. Modeling the nonlinear dielectric properties of the nanostructured ceramics with different grain sizes

1.1. Implementing of Potts models to simulate the grain growth in nanostructured ceramics

1.2. Finite element models (FEM) for computing local fields in the discrete nanoceramics

1.3 Development of a model for describing nonlinear properties in nanostructured relaxor ceramics

2. Experimental study of size dependent properties of dense nanocrystalline ceramics

2.1 Synthesis and micro/nano structural characterization of perovskites nanopowders. Study of formation mechanism

2.2 Micro/nanostructural and phase analysis

2.3 Low-field broadband dielectric characterization

3. Managerial objective

3.1 Coordination of research activities

3.2 Starting of procedures for buying devices and materials. Repartition of tasks for every group member.

2014

Obiective

Activitati

1. Experimental study of size dependent properties of dense nanocrystalline ceramics

1.1 Ferroelectric & tunability study (TIII).

1.2 Multiscale modeling (FEM, Monte Carlo, Preisach)

2. Investigation of BaMxTi1-xO3 ferroelectric-relaxor ceramics with compositionally-induced ferroelectric-relaxor crossover

2.1. Preparation of BaTiO3- based solid solution by solid state methods

2.2 Micro/nanostructural & phase characterization

2.3 Study of the temperature-dependent low-field dielectric properties by impedance spectroscopy

2.4 Raman spectroscopy and nanoscale AFM-PFM study for investigating the ferroelectric-relaxor crossover induced by composition .

2.5 Macroscopic ferroelectric (P(E), sub-switching experiments) and dc-tunability study

2.6 Multiscale models (FEM, Potts, Monte Carlo, Preisach) to describe the composition-induced polarization in ferroelectric-relaxor systems

3. Managerial objective

3.1 Coordination of research and dissemination activities

2015

Obiective

Activitati

1. Ferroelectric-relaxor ceramics with various degrees of mesoscale mixing.

1.1. Preparation of BaTiO3-based solid solution by mixing various types of compositions to result different mesoscale mixing

1.2. Low-field dielectric study by impedance spectroscopy

1.3 Raman spectroscopy for investigation the phase transitions and ferroelectric-relaxor crossover

1.4 Macroscopic ferroelectric (P(E), sub-switching experiments, FORC) and dc-tunability study

1.5 Multiscale models (FEM, Monte Carlo, Preisach) to describe the composition-induced polarization in ferroelectric-relaxor systems

2. Managerial objective

2.1 Coordination of research and dissemination activities

MODx - Mollio