TY - GEN
T1 - Piezoelectric structural sensor technology for extreme environments
AU - Lapsley, Michael Ian
AU - Alberta, Edward F.
AU - Sahul, Raffi
AU - Hackenberger, Wesley
AU - Jiang, Xiaoning
AU - Zhang, Shujun
AU - Shrout, Thomas
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2010
Y1 - 2010
N2 - High temperature sensors are desired for down-hole well monitoring, future propulsion components, as well as improving performance and maintainability of power production facilities and other rotary combustion engines. Recently discovered high temperature oxyborate crystals showed stable piezoelectric properties and high resistivity at temperatures close to its melting point (∼ 1500°C, or 2730°F), which is very promising for high temperature sensor applications. In this paper the feasibility of using oxyborate based high temperature piezoelectric crystal (HTPC) for high temperature piezoelectric sensor applications is demonstrated. Oxyborate HTPC with various crystal cuts and vibration modes were investigated to obtain high temperature resistivity, dielectric, piezoelectric and thermal expansion properties. YCa 4O(BO3)3 crystals (YCOB) showed excellent piezoelectricity, low dielectric loss and high resistivity at temperatures up to 1000°C (> 1800°F). The measured thermal expansion coefficients of YCOB are about ∼3-8 ppm/K, depending on different orientations. High temperature accelerometers were demonstrated using YCOB HTPC at temperatures up to 1000°C with sensitivity remaining steady (∼ 2.4 pC/g) across the temperature range of 20°C - 1000°C.
AB - High temperature sensors are desired for down-hole well monitoring, future propulsion components, as well as improving performance and maintainability of power production facilities and other rotary combustion engines. Recently discovered high temperature oxyborate crystals showed stable piezoelectric properties and high resistivity at temperatures close to its melting point (∼ 1500°C, or 2730°F), which is very promising for high temperature sensor applications. In this paper the feasibility of using oxyborate based high temperature piezoelectric crystal (HTPC) for high temperature piezoelectric sensor applications is demonstrated. Oxyborate HTPC with various crystal cuts and vibration modes were investigated to obtain high temperature resistivity, dielectric, piezoelectric and thermal expansion properties. YCa 4O(BO3)3 crystals (YCOB) showed excellent piezoelectricity, low dielectric loss and high resistivity at temperatures up to 1000°C (> 1800°F). The measured thermal expansion coefficients of YCOB are about ∼3-8 ppm/K, depending on different orientations. High temperature accelerometers were demonstrated using YCOB HTPC at temperatures up to 1000°C with sensitivity remaining steady (∼ 2.4 pC/g) across the temperature range of 20°C - 1000°C.
UR - https://www.scopus.com/pages/publications/84878234880
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84878234880&origin=recordpage
U2 - 10.4071/hitec-ealberta-tha21
DO - 10.4071/hitec-ealberta-tha21
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781622769780
T3 - International Conference and Exhibition on High Temperature Electronics 2010, HiTEC 2010
SP - 355
EP - 358
BT - International Conference and Exhibition on High Temperature Electronics 2010, HiTEC 2010
T2 - IMAPS High Temperature Electronics Conference, HiTEC 2010
Y2 - 11 May 2010 through 13 May 2010
ER -