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Table 6 Eigenvalues of stiffness matrix of alumina

From: Quantum mechanical analysis of yttrium-stabilized zirconia and alumina: implications for mechanical performance of esthetic crowns

λ1

λ2

λ3

λ4

λ5

λ6

436.17 GPa

436.17 GPa

436.17 GPa

613.47 GPa

613.47 GPa

1081.8 GPa