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1
Limited Penetration Depths of Hydrides in Cylindrical Pd-Ni Alloy Samples
Baranowski B., Dębowska L.
Polish Journal of Chemistry
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2005
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Vol. 79 / nr 4
783-787
EN
The penetration depths of hydrides formed in 6.8 kbar of gaseous hydrogen in cylindrical samples was investigated at 25°C in Pd-Ni alloys of 80, 120, 150, 200 and 250 mi mdiameters. The exposition time was about 4 months, thus, sufficient for the stationarity in respect to equilibration of the sample composition. In all alloys the penetration depth was limited, exhibiting a linear increase with radii of the wires applied with the slope of about 0.6 mi m per 1 mi m of the wire radius. These results are interpreted in terms of the coherent character of the hydride formation, supporting the thermodynamic reason for the limited penetration depth of metallic hydrides.
2
45 Years of Nickel Hydride
Baranowski B., Filipek S.
Polish Journal of Chemistry
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2005
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Vol. 79 / nr 5
789-806
EN
The history of discovery of nickel hydride and studies of its properties is briefly described. Nickel hydride, obtained firstly on electrochemical way, was then synthesized directly from elements under high pressure of gaseous hydrogen. This was the first high pressure synthesis of a metal hydride, which opened a novel and very fruitful field of inorganic synthesis. It was the foundation for discovery of new materials and new phenomena.
3
The Limited Penetration Depth of Nickel Hydride at 298 K
Stroka A., Baranowski B.
Polish Journal of Chemistry
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2002
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Vol. 76 / nr 7
1019-1026
EN
At three different gaseous hydrogen pressures (7.65; 10.26 and 12.36 kbar) the penetration depth of nickel hydride was determined in stationary conditions at 298 K, increasing from 35.5 _mto 59.5 _mand being a linear function of the ln of hydrogen fugacity.At the above temperature 30 _mis the minimal penetration depth of nickel hydride. Kinetic reasons are supposed to be responsible for the limited penetration depth
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