Abstract
The cerium-palladium system has been studied over the composition range 48–100%∗∗ palladium between 8oo°C and the melting points, mainly by metallographie and X-ray methods. The solubility of cerium in palladium at 8oo°C and at 1050°C is 13 ± 1%. Four intermetallic compounds were observed; CePd and CePd 3 crystallize directly from the melt at 1137° ± 12° and 1437° ± 12°C, respectively, while compounds occurring at 57 ± 1% (X) and 62.5 ± 1% palladium (Y) form peritectically at 1137° ± 12° and 1037° ± 12°C, respectively. CePd 3 forms eutectics with Y and with the palladium-rich solid solution at 64 ± 1% palladium and 987° ± 12°C, and 84 ± 1% palladium and 1075° ± 12°C, respectively. The results are compared with those obtained earlier on the thorium-palladium system.
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