Elastic and viscous properties of nanocomposite films based on low-density polyethylene

• Published in: IEEE transactions on ultrasonics, ferroelectrics, and frequency control Vol. 57; no. 9; pp. 2099 - 2102
• Main Authors: Kuznetsova, Iren E, Zaitsev, Boris D, Shikhabudinov, Alexander M
• Format: Journal Article
• Language: English
• Published: United States IEEE 01.09.2010; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Acoustic impedance; Acoustics; Dielectric properties; Impedance; Iron; Nanocomposite materials; Nanomaterials; Nanoparticles; Nanostructure; Polyethylenes; Polymers; Shear
• ISSN: 0885-3010; 1525-8955; 1525-8955
• DOI: 10.1109/TUFFC.2010.1658

The physical properties of nanocomposite materials which contain nanoparticles of metals and their compounds stabilized within a polymeric dielectric matrix are currently being studied. These materials show a low acoustic impedance, resulting in their use as low-perturbing substrates for thin piezoelectric plates, as well as matching and damping layers for bulk acoustic wave devices. Mechanical properties of the materials which contain various Fe and Fe 2 O 3 nanoparticle concentrations are experimentally defined in the paper. It has been shown that the acoustic impedance of the materials under study may be varied by more than 30% and 40% for longitudinal and shear acoustic waves, respectively, within the same technological procedure. The velocities of bulk longitudinal and shear acoustic waves can be purposefully changed by more than 40% and 29%, respectively.