18 Questions
What is the temperature range in which proton conduction is activated in Proton Conducting Oxides?
300-1000ºC
What is the primary mechanism for proton conduction in Proton Conducting Oxides?
Solution/Diffusion
Which of the following gases can cause swelling and densification issues in proton conductors?
CO2
What is the key principle behind the diffusion of protons and oxygen ions in Proton Conducting Oxides?
Hydration of V-O vacancies
What is the main focus of the text?
Hydrogen transport membranes
What is the estimated flux at 700°C according to the text?
10 ml/min·cm²
What are the two successful materials combinations mentioned for asymmetric membranes?
La6-xWO12-δ (LWO) and BaZr0.8Y0.15Mn0.05O3-δ
Which characteristic is NOT mentioned as important for the successful manufacturing of asymmetric membranes?
Fast and scalable availability of materials
What is the stress exponent value for dislocation creep of BCZY material in H2/Ar environment?
3
In which type of atmosphere do silica membranes with carbon substitution exhibit better stability?
Humid atmosphere
At what temperature does the sol-gel processing take place for modifying the structure of amorphous silica membranes via binary metal oxides doping?
200°C
What is the purpose of pervaporation as mentioned in slide 35?
Separation of liquids through vaporization
What is the main requirement for the porous support mentioned in the text?
Similar thermal expansion coefficient
At what temperature range is a sintering temperature needed for the membrane's required density?
1450°C - 1500°C
What change in porosity is required for the substrate between 1450°C and 1500°C?
30 µm - 40 µm
Which sintering treatment resulted in a membrane thickness of 10 µm?
Sintering at 1400 °C
What did the creep behavior analysis of BCZY reveal about grain size/density?
No change in grain size or density observed
What is the main factor determining the needed temperature range for the membrane's required density?
Composition of the membrane material
Test your knowledge on manufacturing steps like tape casting, sintering, and porous support requirements based on a journal article by Deibert in the Journal of European Ceramic Society. Topics include sequential tape-casting, microstructure, membrane thickness, substrate details, and porous support considerations.
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