Characterization of bismuth silicon oxide for high temperature ultrasound sensing

• DOI: 10.1016/j.ultras.2025.107671
• Publication Date: 2025-04-25T02:42:57Z
• Authors: Nicholas Garcia; Huaiyu Wu; Quinn Fonner; Howuk Kim; Fapeng Yu; Shujun Zhang; Xiaoning Jiang
• Keywords: Bismuth; Characterization; Silicon oxide

Clean energy production continues to grow as an international priority. Solar and nuclear power plants are being designed operate at high temperatures, some Generation IV expected or above 850 °C. Monitoring of such structures requires advanced sensors able survive in environments that would easily destroy conventional sensors. Bismuth Silicon Oxide (Bi12SiO20; BSO) is gaining attention a robust piezoelectric material can extreme temperatures. In this work, we present temperature impedance phase characterization BSO transducers up 600 We also conducted experiments with 5.1 × 1 mm3 face-shear generate quasi-shear horizontal waves 3 mm thick steel bars. performed acoustic transmission receiving tests temperatures 650 retains its properties well until around 500 °C before experiencing major rises capacitance dielectric loss (measured 100 kHz). The experienced shift transmitting frequency from 209-213 kHz room approximately 195 was recover environmental decreased, cooldown test revealed all returned normal ranges when the sample cooled. perform continuously ultrasonic emitter receiver on structural Additionally, multiple defect detection using artificial damage, detect damage-induced ≤10 % error. These findings suggest capable performing sensing durability survivability.