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Hydrogen absorption and desorption kinetics in fullerite single crystals. Low-temperature micromechanical and structural characteristics of the interstitial solid solution
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10.1063/1.2832358
/content/aip/journal/ltp/34/1/10.1063/1.2832358
http://aip.metastore.ingenta.com/content/aip/journal/ltp/34/1/10.1063/1.2832358
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Figures

Image of FIG. 1.
FIG. 1.

Values of the microhardness of fullerite versus the hold time during the absorption and desorption of hydrogen; the measurements of were done at room temperature: absorption in an atmosphere of hydrogen at a pressure , , , ; the solid curves are plots of the analytical approximation (1) (a); the desorption process during a hold of the hydrogen-saturated samples in an atmosphere of air; the solid curve shows a plot of the analytical approximation (3) (b). The arrow indicates that the desorption was studied for the sample saturated with hydrogen at .

Image of FIG. 2.
FIG. 2.

Dependence of the lattice parameter of fullerite on the saturation time in an atmosphere of hydrogen at pressure and temperature ; the measurements were made at room temperature. The solid curve is a plot of the analytical approximation (2) for the optimal values of the parameters.

Image of FIG. 3.
FIG. 3.

Temperature dependence of the microhardness of crystals of pure and the solid solutions at different values of the saturation time in an atmosphere of hydrogen at pressure and temperature : single crystal of pure , single crystal after saturation for , single crystal after saturation for . The solid lines are a least-squares fit.

Image of FIG. 4.
FIG. 4.

Temperature dependence of the lattice parameter of crystals of pure fullerite , the solid solution after saturation in an atmosphere of hydrogen at pressure and temperature for .

Image of FIG. 5.
FIG. 5.

Microstructure of a single crystal on the habit plane (111) after saturation with hydrogen at pressure and temperature for . One can see a large crack running through the whole frame (the dark band) and the slip bands for systems of the type .

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/content/aip/journal/ltp/34/1/10.1063/1.2832358
2008-01-01
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Hydrogen absorption and desorption kinetics in fullerite C60 single crystals. Low-temperature micromechanical and structural characteristics of the interstitial solid solution C60(H2)x
http://aip.metastore.ingenta.com/content/aip/journal/ltp/34/1/10.1063/1.2832358
10.1063/1.2832358
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