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Which consequence results when anisotropic thermal expansion in sapphire (Al₂O₃) single crystal gyro components exceeds design tolerances?

A)Degraded frequency resonance stability
B)Increased material yield strength
C)Improved conductive heat transfer
D)Reduced intrinsic crystal hardness

💡 Explanation

Frequency stability degrades because differential rates drives thermally induced stress inside the crystal which changes the resonance frequency. because the rate differs on crystal axis, therefore the stability diminishes; rather than becoming stronger or exhibiting other behaviors.

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