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Table 13 Permeability and permeance and associated relative humidity of the coatings I1 – I4 from the I-series calculated from the measured g (RH 0% / 50%)

From: Hygro-mechanical short-term behaviour of selected coatings: experiments and material modelling on vapour permeability and mechanical properties

Coating

Specimen no.

\({t}_{tot} [\mu \mathrm{m}]\)

\(RH [\mathrm{\%}]\)

\(\delta \left[\frac{\mathrm{kg}\cdot \mathrm{m}}{\mathrm{Pa}\cdot {\mathrm{m}}^{2}\cdot \mathrm{s}}\right]\)

\(W \left[\frac{\mathrm{kg}}{\mathrm{Pa}\cdot {\mathrm{m}}^{2}\cdot \mathrm{s}}\right]\)

I1: S + T

46

150

29.9

\(1.19\cdot {10}^{-13}\)

\(7.96\cdot {10}^{-10}\)

47

100

30.1

\(8.40\cdot {10}^{-14}\)

\(8.40\cdot {10}^{-10}\)

48

120

28.9

\(7.22\cdot {10}^{-14}\)

\(6.02\cdot {10}^{-10}\)

49

120

30.2

\(1.04\cdot {10}^{-13}\)

\(8.69\cdot {10}^{-10}\)

I2: S + T + H

50

150

30.5

\(1.39\cdot {10}^{-13}\)

\(9.27\cdot {10}^{-10}\)

51

200

31.0

\(2.07\cdot {10}^{-13}\)

\(1.04\cdot {10}^{-09}\)

I3: S + T + H + Pr

52

800

29.5

\(5.76\cdot {10}^{-13}\)

\(7.21\cdot {10}^{-10}\)

53

950

29.9

\(7.56\cdot {10}^{-13}\)

\(7.96\cdot {10}^{-10}\)

I4: S + T + H + Pr + Pa + O

54

850

25.4

\(4.73\cdot {10}^{-14}\)

\(5.57\cdot {10}^{-11}\)

55

950

25.4

\(5.11\cdot {10}^{-14}\)

\(5.38\cdot {10}^{-11}\)

56

880

25.4

\(5.25\cdot {10}^{-14}\)

\(5.97\cdot {10}^{-11}\)

57

950

25.4

\(5.66\cdot {10}^{-14}\)

\(5.95\cdot {10}^{-11}\)