| 摘要 |
Acoustic absorption and vibration damping materials produced by mixing electrically conductive particles (11) or strands (12) into a piezoelectric matrix material (10). The electrically conductive particles (11) or strands (12) act as small localized electrical short-circuits within the matrix (10) and effectively dissipate the electric charges produced by piezoelectric effect from the pressure of acoustic or vibrational energy as heat. All energy thus converted into heat is subtracted from the original acoustic or vibrational energy, resulting in acoustic absorption and/or vibration damping. |
