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Simultaneous Equilibria
Modern cars have fuel injection systems that control the air/fuel ratio combusted. The
optimum ratio is 14.5. Above this ratio, hydrocarbons and
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Radial Distribution Function
At this point, you have seen many different crystal structures. Close packing
considerations, stochiometry, and Paulings rules have shed lig
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Origin of a Potential Energy Surface
The idea of a potential energy surface describing how atoms interact comes from an
approximation of the Schrdinguer equation made by
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I.2 Paulings rules provide empirical guidelines for understanding the stability of
ionic crystal structures
The main forces in an ionic crystal are coulombic interaction
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Line and Planar Defects
A dislocation in a crystal is a displacement. Normally, these are formed during growth as
a result of accidents. They still maintain the electros
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Mass and Electrical Transport
Electrochemical Potential and Devices
We just considered mobility due to chemical and electrical potential gradients. Normally
both are pre
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Mass and Electrical Transport
Electrical Conductivity
Ceramics exhibit a wide range of conductivities mostly though ionic conduction. To
understand how this is possible,
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Mass and Electrical Transport
To consider mass and electrical transport through a material, it is helpful to have an
understanding of diffusion first at a continuum leve
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Atomic level detail and the diffusion constant
Now, lets introduce some atomic level details to get a sense of what diffusion
coefficients mean. Consider atoms in the la
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Defects in Ceramics
In the previous units, we have investigated the primary structural motifs and symmetries
in ceramics. We learned how to use Paulings rules to predict
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I.1 Closed-packed lattices are the basic skeletons
Most ceramics have structure based on closest packing of one constituent. The basic two
types of closest packing are f