Experimental results concerning the scalar piezomagnetic coefficients of Co-based ferrites at room temperature are presented and discussed. To increase the mechanical properties, the ferrite powders are bonded by a phenol-based matrix. The Young's modulus of the samples is about 8 GPa. The permeability of the samples mu(delta)(z)(H) and the slope of magnetostriction curve d(33)(sigma) (H) at constant stress, which are the most important piezomagnetic coefficients for stress sensing and mechanical actuation, are discussed in detail with respect to sample density changes due to different content of binder and compaction pressure.
Piezomagnetic coefficients of polymer bonded Co-ferrites / Sasso, CARLO PAOLO; Pasquale, Massimo; L., Giudici; S. H., Lim; S. M., Na. - In: SENSORS AND ACTUATORS. A, PHYSICAL. - ISSN 0924-4247. - 129:(2006), pp. 159-162. [10.1016/j.sna.2005.11.062]
Piezomagnetic coefficients of polymer bonded Co-ferrites
SASSO, CARLO PAOLO;PASQUALE, MASSIMO;
2006
Abstract
Experimental results concerning the scalar piezomagnetic coefficients of Co-based ferrites at room temperature are presented and discussed. To increase the mechanical properties, the ferrite powders are bonded by a phenol-based matrix. The Young's modulus of the samples is about 8 GPa. The permeability of the samples mu(delta)(z)(H) and the slope of magnetostriction curve d(33)(sigma) (H) at constant stress, which are the most important piezomagnetic coefficients for stress sensing and mechanical actuation, are discussed in detail with respect to sample density changes due to different content of binder and compaction pressure.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
