10171-49-0Relevant articles and documents
Phase stability study of the pseudobinary system Gd2O 3-Nd2O3 (T1350°C)
Costa,Artini,Ubaldini,Carnasciali,Mele,Masini
, p. 101 - 104 (2008)
The phase stability of the system Gd2O3-Nd 2O3 up to 1350°C was studied. Mixed oxides were synthesized by coprecipitation of mixed oxalates. Depending on the thermal treatment, three possible structures of the oxides, namely the A (hexagonal, P63/mmm), B (monoclinic, C2/m) and C (cubic, Ia3) forms, were obtained. Below 1300°C the system Gd2O3-Nd 2O3 shows three monophasic (A, B and C phase) and three biphasic regions (A+B, B+C and A+C phase). Below 550°C the C phase is stable over the whole composition range. A validation procedure for the existence of the C phase in pure Nd2O3 was also set up.
Synthesis and thermal decomposition of mixed Gd-Nd oxalates
Ubaldini,Artini,Costa,Carnasciali,Masini
, p. 797 - 803 (2009/01/31)
Several (Gd1-xNdx)2[C2O 4]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 CO 2.
THERMAL ANALYSIS OF THE OXALATE HEXAHYDRATES AND DECAHYDRATES OF YTTRIUM AND THE LANTHANIDE ELEMENTS.
Fuller,Pinkstone
, p. 127 - 142 (2008/10/08)
Simultaneous thermogravimetry and differential thermal analysis data are presented for yttrium and the tervalent lathanide oxalate decahydrates (Y, La - Er excluding Pm) and hexahydrates (Y, Er - Lu). The dehydration and the oxalate and intermediate dioxy
