Table 2: Comparison of the measured values for the TD of samples.

Sample/Sample numberPorosity (%)α (cm2/s)α (cm2/s)
MeasuredLiterature

Al0.970.96–1.12
Si0.870.85–0.97
162.370.78
272.020.69
376.720.64
479.130.58
579.680.56
680.200.48