| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Fritze, Holger
Clausthal University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Acoustic Loss in LiNb1−xTaxO3 at Temperatures up to 900 °C
- 2024Acoustic loss in LiNb1-xTaxO3 at temperatures up to 900 °C
- 2023Analysis of defect mechanisms in nonstoichiometric ceria–zirconia by the microwave cavity perturbation methodcitations
- 2023Chemical expansion of CeO2−δ and Ce0.8Zr0.2O2−δ thin films determined by laser Doppler vibrometry at high temperatures and different oxygen partial pressurescitations
- 2022Assembly and interconnection technology for high-temperature bulk acoustic wave resonatorscitations
- 2022In situ analysis of hydration and ionic conductivity of sulfonated poly(ether ether ketone) thin films using an interdigitated electrode array and a nanobalancecitations
- 2022Impact of electrode conductivity on mass sensitivity of piezoelectric resonators at high temperaturescitations
- 2021Linking the Electrical Conductivity and Non-Stoichiometry of Thin Film Ce1−xZrxO2−δ by a Resonant Nanobalance Approachcitations
- 2021Linking the electrical conductivity and non-stoichiometry of thin film Ce1−xZrxO2−δ by a resonant nanobalance approachcitations
- 2020High-temperature stable piezoelectric transducers using epitaxially grown electrodescitations
- 2020Determination of the Dielectric Properties of Storage Materials for Exhaust Gas Aftertreatment Using the Microwave Cavity Perturbation Methodcitations
- 2019Carbon pair defects in aluminum nitridecitations
- 2019Electromechanical losses in carbon- and oxygen-containing bulk AlN single crystals
- 2018Oxygen transport in epitaxial SrTiO3/SrTi1 − xFexO3 multilayer stackscitations
- 2018Thin-film nano-thermogravimetry applied to praseodymium-cerium oxide films at high temperaturescitations
- 2017Oxygen transport in epitaxial SrTiO3/SrTi1xFexO3 multilayer stackscitations
- 2017Oxygen transport in epitaxial SrTiO3/SrTi1 − xFexO3 multilayer stackscitations
- 2017Oxygen transport in epitaxial SrTiO3/SrTi1-xFexO3 multilayer stackscitations
- 2016Preparation and characterization of c-LiMn2O4 thin films prepared by pulsed laser deposition for lithium-ion batteriescitations
Places of action
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article
Thin-film nano-thermogravimetry applied to praseodymium-cerium oxide films at high temperatures
Abstract
<jats:p>High precision measurements of oxygen nonstoichiometry δ in thin film metal oxides MaOb±δ at elevated temperatures and controlled oxygen partial pressures pO2 are reported with the aid of resonant microbalances. The resonant microbalances applied here consisted of y-cut langasite (La3Ga5SiO14) and CTGS (Ca3TaGa3Si2O14) piezoelectric resonators, operated in the thickness shear mode at ∼5 MHz. Measurements of variations in δ of Pr0.1Ce0.9O2-δ (PCO) films are reported for the oxygen partial pressure range from 10−8 bar to 0.2 bar at 700 °C, and these results were found to be in good agreement with previously reported oxygen nonstoichiometry δ data derived from chemical capacitance studies. The PCO thin-films were deposited via pulsed laser deposition on both sides of the resonators, whose series resonance frequency was tracked, converted into mass changes and, finally, into nonstoichiometry. The nonstoichiometry was observed to reach a plateau as the oxygen partial pressure dropped below about 10−5 bar, the behavior being attributed to the full reduction of Pr to the trivalent state. These resonators enable stable operation up to temperatures above 1000 °C, thereby maintaining high mass resolution suitable for determining oxygen nonstoichiometry variations in thin films deposited on such resonators. For the given experimental conditions, a mass resolution of ∼50 ng was achieved at 700 °C with the CTGS resonator.</jats:p>