Which property varies with direction only in crystalline materials?

Understand the Problem

The question is asking for a specific property of crystalline materials that changes depending on the direction in which it is measured. This refers to anisotropic properties that can vary based on orientation in the crystal structure.

More Information

Anisotropy refers to the directional dependence of physical properties in a material. This property is significant in single crystals where properties like elastic modulus and electrical conductivity vary with the direction of measurement.

Tips

A common mistake is confusing anisotropy with isotropy. Anisotropic materials have different properties in different directions, whereas isotropic materials have uniform properties in all directions.

Sources

• Anisotropy - Wikipedia - en.wikipedia.org
• Which are the properties that vary according to directions in crystalline solids - Quora - quora.com
• Anisotropy of materials - ScienceDirect - sciencedirect.com