Comments on diffusion coefficients from weight loss data
β Scribed by Shires, P. J. ;Hines, A. L. ;Okabe, T.
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- English
- Weight
- 154 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0021-9304
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## Abstract The weightβloss method was employed to determine the diffusion coeffcients of mercury in Ag~2~Hg~3~ alloy at temperatures in the range of 64β120Β°C. Diffusion coeffcients for nonhomogeneous specimens obey the relationship: Diffusion coeffcients for nonhomogeneous samples were found to b
## 899 where AGa is the Gibbs free energy for formation of adsorbed atoms and g a geometrical factor depending on their source (4) Thus within the limitations of the model of surface diffusion by adsorbed atom migration the surface tracer diffusivity is, apart from correlation factors, t,he same a
Mercury vapor pressure over clinically used amalgams, as well as the individual phases composing dental amalgam, has been determined from weight loss data using Langmuir's time averaged weight loss technique. The results show that the Hg vapor pressure of 38.2 X 10-6 torr over the pure y1 (AgPHgl) p