Table 8.
Linear thermal expansion coefficients determined for three samples of 80 Wt% Pt+20 Wt% Rh
| Samplea | t1 coef. | t2 coef. | t3 coef. | t4 coef. | σ fit b |
|---|---|---|---|---|---|
| Ref [19] (25) | 8.674 × 10−6 | 2.538 × 10−9 | −2.081 × 10−12 | 1.480 × 10−15 | 0.062 |
| S-M (45) | 8.707 × 10−6 | 2.177 × 10−9 | −1.037 × 10−12 | 5.729 × 10−16 | 0.073 |
| S-U (15) | 8.730 × 10−6 | 2.056 × 10−9 | −7.999 × 10−13 | 4.111 × 10−16 | 0.065 |
| Pooled (85) | 8.705 × 10−6 | 2.245 × 10−9 | −1.214 × 10−12 | 6.964 × 10−16 | 0.074 |
a
Number of data points in parentheses.
b
Estimated standard deviation of the 4th-degree fit normalized to a uniform sample length.