Weiss Index Formula:
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Definition: The Weiss Index along x-axis gives an approximate indication of a face orientation with respect to the crystallographic x-axis.
Purpose: It helps in crystallography for understanding plane orientations in crystal lattices.
The calculator uses the formula:
Where:
Explanation: The LCM of Weiss indices is divided by the Miller index along the x-axis to determine the Weiss Index.
Details: Proper calculation of Weiss indices is essential for understanding crystal structures and plane orientations in materials science.
Tips: Enter the LCM of Weiss indices and the Miller index along x-axis. Both values must be > 0.
Q1: What is the relationship between Weiss and Miller indices?
A: Weiss indices are the reciprocals of Miller indices and are used to describe crystal faces.
Q2: How do I find the LCM of Weiss indices?
A: The LCM is calculated from the Weiss indices a, b, c along the x, y, z axes respectively.
Q3: What does a higher Weiss Index value indicate?
A: A higher value indicates a plane that is more steeply inclined to the x-axis.
Q4: Can Weiss indices be negative?
A: While the calculator only accepts positive values, in crystallography negative indices are possible.
Q5: What's the typical range for Weiss indices?
A: They can range from very small fractions to large integers depending on the crystal structure.