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  • 1 INFM and DCCI Via Dodecaneso 31 16146 Genova Italy
  • 2 NIMS 1-1 Namiki Tsukuba, Ibaraki 305-0044 Japan
  • 3 INSTM and DCCI Via Dodecaneso 31 16146 Genova Italy
  • 4 CNR-IMEM Via Dodecaneso 33 16146 Genova Italy
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Abstract  

Several (Gd1−xNdx)2[C2O4]3·nH2O samples (0≤x≤1) were prepared by a coprecipitation method: the precipitation is quantitative and all the samples are homogeneous in stoichiometry. XRD analyses have shown that a complete solid solution is formed over the whole range of compositions. The dried Gd rich oxalates have initially a low water content which gradually increases with the Nd content. All the oxalates decompose in O2 around 700°C either into a single mixed oxide or in a mixture of oxides through several steps, which can be ascribed to the loss of water and CO2.

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