Directional Properties

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Directional Properties

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1. Of metals, properties whose magnitude varies depending on the relation of the test axis to a specific direction within the metal. The variation results from preferred orientation or from fibering of constituents or inclusions. </dd>
2. For thermal radiation properties, in a specified direction from the surface, usually measured as the angle from the normal. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use