Table 1 Model material parameters.

From: A numerical study of the relevance of the electrode-tissue contact area in the application of soft coagulation

Material parameter

 

Value

Unit

Source

Ball electrode (stainless steel)

Poisson’s ratio

\(\nu _{\textrm{el}}\)

0.29

 

36

Young’s modulus

\(E_{\textrm{el}}\)

200

\(\textrm{GPa}\)

36

Density

\(\rho _{\textrm{el}}\)

7900

\(\mathrm {kg/m^{3}}\)

 

Thermal conductivity

\(k_{\textrm{el}}\)

15

\(\textrm{W}/(\textrm{m}\cdot \textrm{K})\)

 

Electrical conductivity

\(\sigma _{\textrm{el}}\)

1.37e6

\(\textrm{S}/\textrm{m}\)

 

Biological soft-tissue (liver tissue)

Poisson’s ratio

\(\nu _{\textrm{t}}\)

0.5

  

Young’s modulus

\(E_{\textrm{t}}\)

1.98

\(\textrm{kPa}\)

37

Density

\(\rho _{\textrm{t}}\)

1079

\(\mathrm {kg/m^{3}}\)

38

Control coefficient

\(k_1\)

0.001161

\(\textrm{W}/(\textrm{m} \cdot \textrm{K} \cdot \mathrm {^{\circ }C})\)

34

Thermal conductivity

\(k_{\textrm{ref}}\)

0.52

\(\textrm{W}/(\textrm{m}\cdot \textrm{K})\)

38

Electrical conductivity

\(\sigma _{\textrm{ref}}\)

0.13

\(\textrm{S}/\textrm{m}\)

38

Effective heat capacity

\(C_{\textrm{eff}}\)

3540

\(\textrm{J}/(\textrm{kg}\cdot \textrm{K})\)

38

Frequency factor

\(A_{\textrm{0}}\)

\(7.39\cdot 10^{39}\)

\(\textrm{s}^{-1}\)

39

Activation energy

\(E_{\textrm{a}}\)

\(2.577\cdot 10^{5}\)

\(\textrm{J}/\textrm{mol}\)

39