Material

Purity

Reference

Obstacle 1

Data

Analysis

${\widehat{\sigma }}_i/{\mu }_o$

g_o1

${\dot{\epsilon }}_{o1}$ (s⁻¹)

Cadmium

0.9999

[13]

[2] (T 10.4)

0.0075

0.20

10⁷

Zinc

0.99999

[10] [11]

[2] (T 10.2)

0.00285

0.17

10⁷

Copper

0.9999

[1]

[1]

None

Copper

0.9995

[12]

[14]

0.00010

0.6

10⁷

Nickel

0.999/55 ppm C

[7]

[7]

0.00034

0.20

10⁹

Nickel - C

1900 ppm C

[7]

[7]

0.00300

0.20

10⁹

Copper - Al

2000 ppm Al

[2]

[2] (T 8.12)

0.00031

0.6

10⁷

Copper - Al

60,000 ppm Al

[2]

[2] (T 8.12)

0.00450

0.6

10⁷

Silver

0.9997+

[15]

[16]

0.0020

0.65

10⁷

Monel

320,000 ppm Cu

[17]

[17]

0.00224

0.539

10⁷

p_i1 = 0.5; q_i1 = 1.5