Results 81 to 90 of about 7,996 (167)

Synthesis and NEXAFS and XPS Characterization of Pyrochlore-Type Bi_1.865Co_1/2Fe_1/2Ta₂O_9+Δ

Chemistry
A cubic pyrochlore with the composition Bi1.865Co1/2Fe1/2Ta2O9+Δ (space group Fd-3m, a = 10.5013(8) Å) was synthesized from oxide precursors using solid-phase reactions.
Nadezhda A. Zhuk, Sergey V. Nekipelov, Olga V. Petrova, Aleksandra V. Koroleva, Aleksey M. Lebedev, Boris A. Makeev   +5 more
doaj   +1 more source

Pyrochlore luminescent nano-pigments

, 2020
Treball Final de Grau en Química. Codi: QU0943. Curs acadèmic: 2019/2020Pyrochlores are widely studied for their variety of properties according to their composition, hence their versatility.
Fernández-Saiz, Carolina
core   +1 more source

NEXAFS and XPS and Structural, Electrical and Thermal Properties of Zn and Ni Codoped Bismuth Antimonate Pyrochlore

Chemistry
The crystal structure and physicochemical properties of a new Ni/Zn codoped bismuth antimonite pyrochlore, synthesized by the solid-phase reaction method, were investigated.
Sergey V. Nekipelov, Maria G. Krzhizhanovskaya, Alexandra V. Koroleva, Nikolay A. Sekushin, Vladimir A. Belyy, Olga V. Petrova, Nadezhda A. Zhuk   +6 more
doaj   +1 more source

Process—structure correlations in co-precipitation synthesized lanthanum zirconates

Materials Research Express
Rare Earth Zirconates with pyrochlore/flourite structure have attracted interests owing to their immense potential in modern technological applications.
Saideep Shirish Bhat, K A Irshad, Mahima Almeida, M Sivakumar, P Vairavel, S C Gurumurthy, Raghavendra K G   +6 more
doaj   +1 more source

Crystal, Optical, Thermal and Dielectric Properties, XPS, and NEXAFS of Magnesium-Doped Nickel–Bismuth Stibate Pyrochlore

Crystals
The article presents the results of a study of the properties of a new pyrochlore (Bi2.7Mg0.46Ni0.70Sb2O10+Δ) using X-ray powder diffraction analysis, high-temperature X-ray powder diffraction and thermal analysis, diffuse reflectance spectroscopy ...
Nadezhda A. Zhuk, Maria G. Krzhizhanovskaya, Alexandra V. Koroleva, Shamil S. Shayakhmedov, Nikolay A. Sekushin, Vladimir A. Belyy, Olga V. Petrova, Sergey V. Nekipelov, Ratibor G. Chumakov   +8 more
doaj   +1 more source

Mechanical synthesis of nanostructured Y2Ti2O7 pyrochlore oxides

, 2018
International audiencePyrochlore-type Y2Ti2O7 powders were successfully synthesized by mechanical milling. Nanosized powders of Y2O3 and TiO2 are milled to form an amorphous mixture of Y2Ti2O7 containing a small quantity of crystallized fluorite ...
Giroux, P-F, Gloriant, T., Chaffron, L., Fitch, A., Castany, P., Simondon, E.   +5 more
core   +1 more source

Tuning properties through disorder: structural, optical, and mechanical insights into novel medium-entropy rare-earth hafnate pyrochlores

Materials Research Express
Entropy-stabilized oxides find application in several areas due to their interesting properties which comes from the four core attributes—entropy-stabilization effect, severe lattice distortion effect, sluggish diffusion effect and cocktail effect.
Gaius Cherian Mathew, Shijo Thomas
doaj   +1 more source

Competing phases and topological excitations of spin-1 pyrochlore antiferromagnets

, 2018
© 2018 American Physical Society. Most works on pyrochlore magnets deal with the interacting spin-1/2 local moments. We here study the spin-one local moments on the pyrochlore lattice and propose a generic interacting spin model on a pyrochlore lattice ...
Chen, Gang, Li, Fei Ye
core   +1 more source

Studies on some pyrochlore type solid electrolytes

, 1980
This article summarizes ionic conductivity studies on a number of compounds crystallizing in the pyrochlore type structure. The pyrochlore structure is described, and the determination of ionic conductivities by means of impedance measurements is ...
Grins, Jekabs,
core  

Hydrothermal Synthesis and Structure of Lead Titanate Pyrochlore Compounds

, 2016
Systemic syntheses showed that the lead titanate pyrochlore phases formed under hydrothermal reactions in a certain range of KOH concentrations. The obtained pyrochlore phases all crystallize in the cubic structure.
Fuhui Liao (1782913), Jing Ju (1586911), Jianhua Lin (760055), Guobao Li (122160), Dejun Wang (725143), Huizhong Huang (2955036), Guangqing Yao (2955033), Liping You (134586), Nianzu Wu (2656393), Jing Chen (4762)   +9 more
core   +1 more source