Title | Hydrogen permeation measurements on alumina |
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Publication Type | Articolo su Rivista peer-reviewed |
Year of Publication | 2005 |
Authors | Serra, Emanuele, Bini A.C., Cosoli G., and Pilloni L. |
Journal | Journal of the American Ceramic Society |
Volume | 88 |
Pagination | 15-18 |
Keywords | Alumina, Arrhenius expressions, Ceramic materials, diffusion, Hydrogen, Hydrogen driving pressures, Hydrogen permeation measurements, Solubility, Solubility parameters |
Abstract | The aim of this work is to measure the hydrogen transport and solubility parameters in the commercial alumina. Measurements are conducted using a time-dependent permeation method over the temperature range 1273-1673 K with hydrogen driving pressures in the range 104-105 Pa (100-1000 mbar). A half-power pressure dependence (diffusion-limited permeation) of the permeation flux for alumina is observed. The Arrhenius expressions for the hydrogen permeability, diffusivity, and Sieverts' constant values obtained from a fitting to the whole temperature range are as follows: P = 3.3 · 10-10 exp(-97420/RT) mol · m-1 · s -1 · Pa-1/2 D = 9.7 · 10-8 exp(-79990/RT) m2 · s-1 Ks = 5.5 ·10-3 exp(-22540/RT) mol · m-3 · Pa-1/2. |
Notes | cited By 54 |
URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-27644535443&doi=10.1111%2fj.1551-2916.2004.00003.x&partnerID=40&md5=05673ba9314f9dd2b85ae0c51f239ceb |
DOI | 10.1111/j.1551-2916.2004.00003.x |
Citation Key | Serra200515 |