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The influence of Si and Ge on the hydrogen sorption properties of the intermetallic compound ZrCr2

X-ray powder diffraction studies of the Zr(Cr1-xTx)2 (T=Si, Ge) revealed that chromium can partialy be replaced by silicon or germanium without changing the hexagonal structure of ZrCr2. It was observed that all ternary alloys react readily with hydrogen to form hydrides containing 1.7-2.5 hydrogen atoms per alloy formula unit. This is significantly lover than the value of 3.4 absorbed hydrogen atoms per alloy formula unit found for the prototype compound ZrCr2. It was also found that replacement of chromium by silicon or germanium increases the hydrogen dissociation equilibrium pressure of ZrCr2.

Intermetallic compound ZrCr2; hydrogen sorption properties

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