Home ﹥ Hot News > Corporate Patents > Patent Title: High-Mechanical-Strength Piezoelectric Ceramic Material, Sensor, and Its Preparation Method and Application (CN202410443392.2)
Description:
This invention falls under the field of piezoelectric materials and discloses a high-mechanical-strength piezoelectric ceramic material, its corresponding sensor, preparation method, and application. The ceramic material is composed of lead tetroxide (Pb₃O₄), strontium carbonate (SrCO₃), calcium carbonate (CaCO₃), ferric oxide (Fe₂O₃), nickel oxide (NiO), zirconium dioxide (ZrO₂), and titanium dioxide (TiO₂).
The chemical formula of the piezoelectric ceramic material is:
(PbxSr₁₋ₓ)₀.₉₆(Zr₀.₅₂Ti₀.₄₈)O₃ – (PbxSr₁₋ₓ)₀.₀₄(Ca₀.₅Ni₀.₅)O₃ + 0.03 wt% Fe₂O₃, where x = 0.92.
This formulation results in a ceramic material with fine crystal grain size, high mechanical strength, and a high mechanical quality factor (Qm). It is particularly suitable for sensors used in high-power ultrasonic welding systems and ultrasonic surgical scalpels.