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Table 3 Simple expressions for estimating fundamental material losses using Eq. ( 2 )[5, 6]

From: Design strategies for controlling damping in micromechanical and nanomechanical resonators

Mechanism Relaxation strength Relaxation time
Thermoelastic damping (TED) Δ TED = E α 2 T C τ TED = C h 2 π 2 k
Akhiezer damping Δ Akhiezer = C T γ 2 ρ v 2 τ Akhiezer = 3 k C v 2