Near-field passive sensor for the monitoring of high-temperature oxidative corrosion of metals
Measurement: Journal of the International Measurement Confederation, cilt.269, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 269
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.measurement.2026.120805
- Dergi Adı: Measurement: Journal of the International Measurement Confederation
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
- Anahtar Kelimeler: Harsh environment sensing, High-temperature corrosion sensor, LC resonator, Metal oxidation, Passive wireless sensor
- Ankara Yıldırım Beyazıt Üniversitesi Adresli: Evet
Özet
This study reports on the development and testing of a passive wireless device designed to track temperature and corrosion behavior in SS304H stainless steel under elevated temperatures. The ANSYS HFSS software was utilized to model and optimize the design of an inductor-capacitor (LC) resonator passive wireless sensors fabricated using platinum designs printed onto an aluminum oxide support operating at frequencies between (50–190 MHz). The optimal LC wireless sensor designs were then fabricated using screen-printing and sintering methods. The sensors were tested by placing the sensor onto polished SS304H flat substrates and heated to 900–1050 °C in air. Wireless acquisition of sensor data during heating, cooling, and isothermal stages was achieved through a Pt loop antenna connected to an RF signal generator and a network analyzer. The corrosion sensor data was correlated to actual oxide thickness growth using data obtained from simulate SS340H samples analyzed using thermogravimetric analysis (TGA) data and SEM microscopic images. The findings indicated that the temperature and corrosion kinetics were compatible with the wireless signal, suggesting that these two characteristics may be further distinguished in the future. Notably, the triple-layer Pt sensor exhibited a temperature sensitivity of approximately 1.25–1.5 kHz/°C in the 50–70 MHz range, and at 1000 °C a nearly linear correlation (R2 > 0.98) was observed between oxide thickness growth (∼71–297 µm) and resonance frequency shift (∼1.25 MHz), accompanied by a measurable signal magnitude change of ∼ 0.5–1.0 dB. Furthermore, a more pronounced frequency change and signal strength change were observed for the sensor alone compared to the entire system, with the deconvoluted sensor response showing a frequency shift of up to 3.75 MHz and a magnitude change of 1.8 dB during heating, compared to more minor variations in the complete system response. The experimental results demonstrated that the sensor exhibited its most pronounced and stable response in the 160–180 MHz frequency range, where the largest resonance frequency shifts and signal magnitude changes were observed during high-temperature oxidation.