Table 2 Properties of the s₅, s₆, s₇, s₈, s₉, s₁₀, and s₁₁ materials

Lamé constant λ (GPa)

26.38

6.92

27.67

27.67

36.94

48.36

71.27

Shear modulus G (GPa)

27.65

0.88

30.4

30.4

35.91

45.33

58.34

Density ρ (10³ kg/m³)

2.7

1.97

2.63

2.63

2.74

2.92

3.17

P wave velocity v_p (km/s)

5.5

2.1

5.8

5.8

6.3

6.9

7.7

S wave velocity v_s (km/s)

3.2

0.67

3.4

3.4

3.62

3.94

4.29

P wave quality factor Q_p

500

200

320

320

400

450

500

S wave quality factor Q_s

200

80

130

130

160

180

200

Conductivity σ (S/m)

0.001

0.01

1

0.001

0.001

0.001

0.001

Relative electrical permittivity ε_r

10

6

15

4

4

4

4

Relative magnetic permeability μ_r

1

1

1

1

1

1

1