Class 1 : Overview of SOFC
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Draw the cross section of a SOFC.
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Describe how a SOFC operates.
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List materials used for anode, cathode, and electrode.
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Describe why ceramics are needed in SOFC.
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Describe why nanomaterials are needed in SOFC.
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List advantages of SOFC over other fuel cell types.
Class 2: Introduction to Ceramics
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List the main properties of ceramics.
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Calculate the coordination number based on ionic radius.
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Determine the crystal structure from the coordination number.
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Draw the crystal structures for rock salt, cesium chloride, and zinc blend.
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Draw the crystal structure of common ceramics for the anode, cathode, and
electrolyte in SOFC.
Class 3: Ceramic Defects
- List the point defects
- Determine the charge of a point defect in a ceramic
- Define Frenkel and Schottky defects.
- Determine the point defect clusters in a SOFC electrolyte.
- List the bulk (interfacial) 3-D defects.
Class 4: Diffusion via defects
- Explain the interstitial, vacancy, and fast path diffusion mechanisms
- Describe how diffusion depends on temperature.
- Calculate the diffusion coefficient.
- Define sintering.
- Describe the role diffusion plays in sintering.
- Describe the role diffusion plays in the operation of a SOFC. List
ways to increase diffusion across the electrolyte.
Class 5 & 6: Phase Diagrams
- Define phase, component, and solubility.
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Calculate mole fraction and weight fraction of a phase using the lever rule.
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Determine the equilibrium phases,
microstructure, and composition of the phases as a function of
temperature and overall composition from a phase diagram.
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Recognize and describe isomorphous, eutectic, and eutectoid phase diagrams.
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Identify the invariant points
and congruent transformations in a phase diagram.
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Utilize
ceramic phase diagrams to explain Y-stabilized ZrO2.
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