
Interpretation:
The indices for the directions in the hexagonal lattice using three-digit and four-digit systems are to be determined.
Concept Introduction:
The indices for the hexagonal structure needs to be written at given direction A, B, C. For hexagonal lattice, the three-digit system uses three indices (h,k,l) and the four-digit system uses four indices (h,k,i,l)

Answer to Problem 3.56P
Miller indices for hexagonal lattice at given directions.
Explanation of Solution
Given:
The following hexagonal lattce is given:
Calculation:
Miller indices for direction A using three-digit system,
Miller indices for direction B,
Three-digit system
Miller indices for direction C,
Three-digit system
Thus,
Miller indices for hexagonal lattice at given directions.
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Chapter 3 Solutions
Essentials of Materials Science and Engineering, SI Edition
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