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17 Cards in this Set
- Front
- Back
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What are Miller indices?
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They reciprocals of intercepts a plane makes with the x, y and z axes. They are denoted in the (h k l) format, their families in the {h k l} format.
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2 zeros
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What are in the Miller indices of a plane of cube face or one parallel to a cube?
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What is a diagonal plane?
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This plane has one Miller indice of zero.
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They do not contain any atoms.
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Why are higher order planes like (5 6 0) not interesting?
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perpindicular
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A plane and direction with the same indices are _______.
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yes
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Can a direction be reduced?
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no
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Can a plane be reduced?
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What is planar density?
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This number is the atoms centered on a plane divided by the area of that plan.
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What is linear denity?
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This number is the atoms centered on a direction vector divided by the length of that vector.
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(111)
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What is the closest packed plane in an FCC structure?
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(0001)
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What is the closest packed plane in an HCP structure?
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What is a crystal structure?
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This structure can be constructed by stacking closely packed planes.
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What ABCABC?
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An FCC structure has this stacking sequence.
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What ABAB or ACAC?
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An HCP structure has this stacking sequence.
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What is X-Ray diffraction?
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This method of determining crystal structures and inter-planar spacing is based on the constructive interference of x-rays scattered by atoms in a crystal.
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What is Bragg's Law?
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This condition is necessary for diffraction. n*lambda=2dsin(theta)
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What is an amorphous material?
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This material has no peaks in data from an x-ray diffractometer. (glass)
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