Percolation threshold model and its application to the electrical conductivity of layered BaTiO3-Ni

• Autorzy: Ambrozic M. , Dakskobler A. , Valant M. , Kosmac T.
• Konferencja: E-MRS 2004 Fall Meeting Warsaw, Poland , 6-10 September,2004
• Języki publikacji: EN

Abstrakty

EN

The electrical conductivity percolation threshold of the materials composed of conducting particles embedded in a non-conducting host matrix has been investigated. A statistical, numerical method was used, in which the particles are randomly placed, one by one, into the non-conducting host, and the conducting path is searched. The influence of different particle shapes on the percolation threshold is considered. It has been found that, in addition to the anisotropy in the dimensions of particles, the angular distribution of their long axes plays a dominant role in the calculations of the conductivity percolation threshold. Finally, the non-uniform space distribution of positions of particles is taken into account and the model is used to analyze the percolation threshold of the AC conductivity of layered BaTiO3- Ni composites.

Słowa kluczowe

EN

conductivity percolation threshold; particle shape; orientational order; layered structure

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2005
• Tom: Vol. 23, No. 2
• Strony: 535--539
• Opis fizyczny: Bibliogr. 13 poz.

Twórcy

autor

Ambrozic M.

• Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia

autor

Dakskobler A.

• Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia

autor

Valant M.

• Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia

autor

Kosmac T.

• Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia

• Jozef Stefan Inst, Jamova 39, Ljubljana 1000, Slovenia Jozef Stefan Inst, Ljubljana 1000, Slovenia

Bibliografia

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