Electrical resistivity praseodymium

Figure 1. Electrical resistance as a function of hydrogen content for cerium-hydrogen and praseodymium-hydrogen systems (6,7)...

Fig, 6.40. The electrical resistivity of polycrystalline praseodymium separated into spin-disorder and phonon contributions as described in the text. 

Altunbas and Harris (1980) studied the cerium-praseodymium alloy system using electrical resistivity. X-ray diffraction and differential thermal analysis (DTA) techniques. In most of the research they used standard commercial material but some relatively pure praseodymium (purified by solid state electrolysis) was used in the DTA measurements. Appropriate amounts of the component metals were arc-melted in purified argon, turned and remelted several times. This was followed by a seven day vacuum anneal at 600°C with slow cooling to room temperature. Their electrical resistivity curves for the praseodymium sample indicated only one solid phase transformation (dhep bcc) whereas the curves for cerium and the Ce-Pr alloys exhibited two transitions, dhep fee (below 61°C for pure cerium) and fee bcc. 

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