Results 21 to 30 of about 17,376 (136)

Pressure-induced order–disorder transition in Gd1.5Ce0.5Ti2O7 pyrochlore [PDF]

Royal Society Open Science, 2019
An experimental study on ordered pyrochlore structured Gd1.5Ce0.5Ti2O7 (Fd3¯m) was carried out up to 45 GPa by synchrotron radiation X-ray diffraction and Raman spectroscopy.
Jingjing Niu, Xiang Wu, Haibin Zhang, Shan Qin   +3 more
doaj   +1 more source

Electrical and catalytic properties of some oxides with the fluorite or pyrochlore structure: Part 2: Catalytic oxidation of carbon monoxide [PDF]

, 1984
The catalytic properties of mixed oxides with the fluorite or pyrochlore structure were investigated using CO oxidation. The presence of ions with a variable valence state, the size of the ions and especially the extent of pyrochlore ordering affect ...
Bosch, H., Burggraaf, A.J., Dijk, M.P. van, Gellings, P.J., Maat, J.J.H. ter, Roelofs, G., Velde, G.M.H. van de   +6 more
core   +4 more sources

The XPS study of the structure of uranium-containing ceramics [PDF]

Nuclear Technology and Radiation Protection, 2010
The samples of the (Ca0.5GdU0.5)Zr2O7 and (Ca0.5GdU0.5)(ZrTi)O7 ceramics with the fluorite and pyrochlore structures used as matrixes for the long-lived high-level radioactive waste disposal were studied with the X-ray photoelectron spectroscopy ...
Teterin Anton Yu., Maslakov Konstantin I., Teterin Yury A., Ivanov Kirill E., Livshits Tatyana S., Yudintsev Sergei V., Stefanovsky Sergei V., Lapina Mariya I.   +7 more
doaj   +1 more source

Ion-Exchange Reaction Of A-Site In A2Ta2O6 Pyrochlore Crystal Structure

Archives of Metallurgy and Materials, 2015
Na+ or K+ ion rechargeable battery is started to garner attention recently in Place of Li+ ion cell. It is important that A+ site ion can move in and out the positive-electrode materials.
Matsunami M., Hashizume T., Saiki A.
doaj   +1 more source

$Z_Q$ Topological Invariants for Polyacetylene, Kagome and Pyrochlore lattices [PDF]

, 2010
Adiabatic $Z_Q$ invariants by quantized Berry phases are defined for gapped electronic systems in $d$-dimensions ($Q=d+1$). This series includes Polyacetylene, Kagome and Pyrochlore lattice respectively for $d=1,2$ and 3.
Creutz M., Hatsugai Y., I. Maruyama, Katsura H., Matsuhira K., Y. Hatsugai   +5 more
core   +2 more sources

Insight Into Disorder, Stress and Strain of Radiation Damaged Pyrochlores: A Possible Mechanism for the Appearance of Defect Fluorite

Frontiers in Chemistry, 2021
We have examined the irradiation response of a titanate and zirconate pyrochlore—both of which are well studied in the literature individually—in an attempt to define the appearance of defect fluorite in zirconate pyrochlores. To our knowledge this study
Sarah C. Finkeldei, Sarah C. Finkeldei, Sarah C. Finkeldei, Shirley Chang, Mihail Ionescu, Daniel Oldfield, Joel Davis, Gregory R. Lumpkin, David Simeone, Max Avdeev, Felix Brandt, Dirk Bosbach, Martina Klinkenberg, Gordon J. Thorogood, Gordon J. Thorogood   +14 more
doaj   +1 more source

NEW DATA ON PYROCHLORE OF ALKALI PEGMATITES AND ORE ZONES OF THE VISHNEVYE MOUNTAINS (SOUTHERN URALS) [PDF]

Минералогия, 2018
The minerals of the pyrochlore group are abundant in rocks of the Vishnevogorsk alkaline complex – miaskites, mica rocks, carbonatites, and their pegmatites. Several generations of pyrochlore can be found in complex pegmatite bodies.
V.I. Popova, V.A. Popov, I.A. Blinov, V.A. Kotlyarov   +3 more
doaj  

NEW DATA ON PYROCHLORE FROM THE TATARKA DEPOSIT (YENISEI RIDGE, RUSSIA) [PDF]

Минералогия, 2017
Large pyrochlore crystals (up to 6 cm) from ores of the Tatarka deposit are studied, as well as their compositional zoning and relations with associated minerals.
V.I. Popova, P.S. Kozlov, A.V. Lapin, V.A. Popov, V.A. Kotllyarov, L.A. Pautov, M.A. Rassomakhin, V.V. Shilovskikh, I.A. Blinov   +8 more
doaj  

Ionic conduction properties of nanocrystalline Er2Ti2O7 functional material

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2020
The rare-earth titanate Er2Ti2O7 nanoceramic prepared by the modified combustion technique exhibits cubic pyrochlore structure with the space group .
K. Sandeep
doaj   +1 more source

A Novel Pyrochlore Ruthenate: Ca2Ru2O7 [PDF]

, 2006
Single crystals of a novel ruthenate, Ca2Ru2O7, were obtained. An X-ray diffraction study on a single crystal revealed that this material crystallizes in a pyrochlore structure with a lattice parameter, a = 10.197 Angstroms.
Aléonard R., Cox P. A., Felner I., Gardner J. S., Gingras M. J. P., Haas M. K., Hanawa M., Harris M. J., Hertz J. A., Higashinaka R., Hiroi Z., Hiroi Z., Hsu W. Y., Ishida K., Ishii F., Ito M., Kennedy B. J., Longo J. M., Maeno Y., Miyoshi K., Onoda S., Ramirez A. P., Ryden W. D., Sachdev S., Sakai H., Shimakawa Y., Subramanian M. A., Taguchi Y., Takeda T., Taniguchi T., Wang R., Yonezawa S., Yonezawa S., Yoshii S.   +33 more
core   +1 more source