Optimal Design of TSM Langasite Resonator for High-Temperature Applications: A Review

Shah, Ismaeel; Saha, Tridib

doi:10.1109/tuffc.2020.3033704

Cited by 6 publications

(2 citation statements)

References 81 publications

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“…Therefore, their possible applications include gas sensors, 7) microbalance, 8) and combustion pressure sensors, 9) which operate at temperatures higher than 300 °C. Promising candidates are langasite La 3 Ga 5 SiO 14 -type crystals, 10) rare-earth calcium oxoborate ReCa 4 O(BO 3 ) 3 (Re = Y, La-Lu) crystals, 11,12) gallium phosphate GaPO 4 , 8,13) and aluminum nitride AlN and its related nitride thick films, [14][15][16][17] which have been investigated vigorously. These crystals and thin films have one or more shortcomings in applications, as mentioned in Ref.…”

Section: Introductionmentioning

confidence: 99%

Effect of strontium substitution on growth and piezoelectric properties of calcium magnesium silicate Ca₂MgSi₂O₇ single crystals

Takeda,

Uehara,

Hirano

et al. 2023

Jpn. J. Appl. Phys.

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We report the effect of Sr substitution on the crystal growth and piezoelectric properties of calcium magnesium silicate Ca2MgSi2O7 (CMS) single crystals. Strontium-substituted CMS single crystals with a chemical composition of Ca1−x Sr x MgSi2O7 (CSMS100x; x = 0.0 to 0.6) were grown using the conventional Czochralski method. CSMS100x crystals without impurity phases are obtained up to x = 0.5. Both crystallographic axis c and a increased with the Sr content x, and the crystallographic axis ratio a/c decreased. The piezoelectric d 36 constants obtained using CMS, CSMS30, and CSMS40 crystals decreased with an increase in the Sr content x. Based on these observations, a relationship between piezoelectric properties and crystal structure was found using data from 14 types of melilite-type crystals. It was found that d 36 increases with an increase in a/c.

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Section: Introductionmentioning

confidence: 99%

Effect of strontium substitution on growth and piezoelectric properties of calcium magnesium silicate Ca₂MgSi₂O₇ single crystals

Takeda,

Uehara,

Hirano

et al. 2023

Jpn. J. Appl. Phys.

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“…Nevertheless, the application of quartz is limited to a maximum tempera-ture of 450 • C due to strongly increasing acoustic loss (Cernosek et al, 1998;Fritze, 2011a). Alternatively, piezoelectric materials like langasite (La 3 Ga 5 SiO 14 , LGS) or catangasite (Ca 3 TaGa 3 Si 2 O 14 , CTGS) enable the operation at fairly high temperatures, even above 1000 • C (Yu et al, 2016;Zu et al, 2016;Shah and Saha, 2021;Fritze, 2011b;Suhak et al, 2018;Sauerbrey, 1964;Seh et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Impact of electrode conductivity on mass sensitivity of piezoelectric resonators at high temperatures

Schlack

Wulfmeier

Fritze

2022

J. Sens. Sens. Syst.

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Abstract. High-temperature stable piezoelectric Ca3TaGa3Si2O14 and La3Ga5SiO14 resonators with keyhole-shaped Pt electrodes are coated with metal oxide films such as TiO2−δ and SnO2 that overlap the Pt electrodes. The resonators are exposed to reducing atmospheres in order to increase the electrical conductivity of the oxide film and then act as extended oxide electrodes. The resulting increase in the effective electrode radius causes an increase in the mass sensitivity of the resonators and, thereby, resonance frequency shifts. In other words, the effective mass of the Pt electrode becomes higher. An electrical circuit model is presented to describe the increase in the effective electrode radius of the resonator, which is used to calculate the related resonance frequency shift. Additionally, an electromechanical model is presented, which subdivides the resonator into two coupled oscillators. One is representing the resonator volume underneath the Pt electrode and the other underneath the oxide electrode at increased electrical conductivity. The model reflects how the oxide electrodes affect the resonance frequency. Furthermore, the impact of increasing oxide electrode conductivity on the resonance frequency is discussed with respect to the application of oxide electrodes and for gas sensing.

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Single crystal-single crystal bonding of langasite exhibited high strength of 23.28 MPa

Pei¹,

Ma²,

Ye³

et al. 2023

Journal of Materials Science & Technology

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Optimal Design of TSM Langasite Resonator for High-Temperature Applications: A Review

Cited by 6 publications

References 81 publications

Effect of strontium substitution on growth and piezoelectric properties of calcium magnesium silicate Ca₂MgSi₂O₇ single crystals

Effect of strontium substitution on growth and piezoelectric properties of calcium magnesium silicate Ca₂MgSi₂O₇ single crystals

Impact of electrode conductivity on mass sensitivity of piezoelectric resonators at high temperatures

Single crystal-single crystal bonding of langasite exhibited high strength of 23.28 MPa

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Optimal Design of TSM Langasite Resonator for High-Temperature Applications: A Review

Cited by 6 publications

References 81 publications

Effect of strontium substitution on growth and piezoelectric properties of calcium magnesium silicate Ca2MgSi2O7 single crystals

Effect of strontium substitution on growth and piezoelectric properties of calcium magnesium silicate Ca2MgSi2O7 single crystals

Impact of electrode conductivity on mass sensitivity of piezoelectric resonators at high temperatures

Single crystal-single crystal bonding of langasite exhibited high strength of 23.28 MPa

Contact Info

Product

Resources

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Effect of strontium substitution on growth and piezoelectric properties of calcium magnesium silicate Ca₂MgSi₂O₇ single crystals

Effect of strontium substitution on growth and piezoelectric properties of calcium magnesium silicate Ca₂MgSi₂O₇ single crystals