Structure of barium plutonate by neutron powder diffraction

Thermal conductivity of BaPuO3 at temperatures from 300 to 1500 K

“…The lattice parameters of BaPuO 3 were obtained from the X-ray diffraction analysis and are given in Table 1. The experimental lattice parameters were in good agreement with the literature data [11,12]. The theoretical density (T.D.)…”

“…Fig. 2 shows the powder X-ray diffraction patterns at room temperature of a pellet specimen from this study and the literature data [11]. The powder X-ray diffraction pattern of the specimen showed a single phase of BaPuO 3 with an orthorhombic perovskite type structure.…”

“…However, Christoph et al [11] did a neutron diffraction analysis and found that the BaPuO 3 structure was the GdFeO 3 -type structure, which was slightly distorted from cubic perovskite, with space group Pbnm (No.62, alternative setting of Pnma) with lattice parameters of a = 0.6219, b = 0.6193 and c = 0.8744. Fig.…”

Structural and Thermodynamic Characterization of the Perovskite-Related Ba1+yUO3+xand (Ba, Sr)1+yUO3+xPhases

“…The structure of BaUO could be refined with space group Pbnm, analogous to BaPuO (14). The agreement with the observed and calculated profiles is shown in Fig.…”

Molar enthalpies of formation of BaCmO3 and BaCfO3

“…The X-ray powder patterns of both BaCmO3 preparations and the BaCfO3 preparation exhibited only lines which were indexable in cubic symmetry, although it is well known from neutron powder diffraction and high resolution X-ray powder diffraction analysis that these 4f-and 5f-element barium perovskites are often rhombohedrically or orthorhombically distorted [12][13][14][15][16]. The average lattice parameter (pseudo b.c.c.)…”