6 - Defects in Ceramics- Brouwer Diagrams At the end of...

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Defects in Ceramics- Brouwer Diagrams t the end of this lecture you will know how to At the end of this lecture you will know how to use a Brouwer diagram Slides by J. Nino, updated by W. Sigmund
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Defect Reactions dD cC bB aA rxn G T o K RT G G rxn rxn ln 2
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Defect Reactions dD cC bB aA d D c C q a a K b B a A eq a a defect reactions: In defect reactions: o d c kT G x x x x K b B a A D C eq exp 3
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Example Low oxygen partial pressure: ) ( 2 1 2 2 g O e V O O X O red G red K an x N 4   1 an an O V N O
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Exercise 3. Complete the reaction below and determine the P O 2 dependence of K oxid High oxygen partial pressure: X O O g O ) ( 2 1 2 oxid K 5
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charges charges ve ve In writing the eletro-neutrality equation: It is the number of defects per unit volume (concentration) that is considered. All +vely and –vely charged defects from all defect
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6 - Defects in Ceramics- Brouwer Diagrams At the end of...

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