Material

$c_1\left(\text{MPa}\right)$

$c_2\left(\text{MPa}\right)$

$c_3\left(\text{MPa}\right)$

$c_4$

${\alpha }_{d0}\left(1/\text{K}\right)$

$c_{\alpha }\left(1/\text{K}\right)$

NR

−0.5179

4.8704

1.26 × 10⁻⁰²

0.4906

0.0002

−0.0025

NR-SIC

0.2624

0.2434

1.13 × 10⁻⁰⁵

0.7678

0.0000

−0.0025

NR-SIC

0.3131

−0.3017

5.21 × 10⁻¹¹

1.8084

0.0000

−0.0025