Electromagneto-mechanical coupling response of plasto-ferrites.

• Autorzy: Broseau C. , Ndong W.
• Konferencja: APTADAM 2007, III International Conference on Advances in Processing Testing and Application of Dielectric Materials., September, 26-28, 2007 Wrocław, Poland
• Języki publikacji: EN

Abstrakty

EN

The impetus of this work was to investigate the electromagnetic and tensile properties of several commercially available plasto-ferrites (PFs) at ambient conditions. The approach involved selection of a set of PFs, and measuring their complex effective permittivity L = L - e under uniaxial stress at microwave frequencies (0.1-4.5 GHz) and room temperature. We analyze the L spectra for tensilely strained PFs up to 3 prec. Comparing our experimental e data against several dielectric relaxational behaviors, we find that the main physics cannot be understood with a single relaxation mechanism. More importantly we show that the e measurements under stress can be explained in terms of a Gaussian molecular network model in the limit of low stress. The present results have important applications in magnetoactive smart composite materials, e.g. flexible circuit technology in the electronics industry (sensors, actuators and micromechanical systems), functionalized artificial skin and muscles for robotic applications.

Słowa kluczowe

EN

plastoferrites; effective permittivity; microwave spectroscopy

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Prace Naukowe Instytutu Podstaw Elektrotechniki i Elektrotechnologii Politechniki Wrocławskiej. Konferencje
• Rocznik: 2007
• Tom: Vol. 46, nr 19
• Strony: 10--16
• Opis fizyczny: Bibliogr. 18 poz.

Twórcy

autor

Broseau C.

autor

Ndong W.

• Laboratoire d'Electronique et Systemes de Telecommunications, Universite de Bretagne Occidentals CS 93837, 6 avenue Le Gorgeu, 29238 Brest Cedex 3, France

Bibliografia

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