Results 41 to 50 of about 1,430 (100)

Features of Synthesis, Crystal Structure, Thermal and Electrical Properties, XPS/NEXAFS Study of Pyrochlore-Type Bi₂Cr_0.5Co_0.5Nb₂O_9+Δ

Chemistry
The phase-pure cubic pyrochlore of the Bi2Cr0.5Co0.5Nb2O9+Δ composition can be successfully synthesized by a modified sol–gel method (Pecini method-PM) and a traditional solid-phase method (SPM).
Nadezhda A. Zhuk, Nikolay A. Sekushin, Maria G. Krzhizhanovskaya, Vladislav V. Kharton, Danil V. Sivkov, Sergey V. Nekipelov   +5 more
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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
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The spin-1/2 Heisenberg ferromagnet on the pyrochlore lattice: A Green's function study

Condensed Matter Physics, 2018
We consider the pyrochlore-lattice quantum Heisenberg ferromagnet and discuss the properties of this spin model at arbitrary temperatures. To this end, we use the Green's function technique within the random-phase (or Tyablikov) approximation as well as ...
T. Hutak, P. Müller, J. Richter, T. Krokhmalskii, O. Derzhko   +4 more
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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
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Structural determination of new solid solutions [Y2-x Mx ][Sn2-x Mx ]O7-3x/2 (M = Mg or Zn) by Rietveld method [PDF]

Processing and Application of Ceramics, 2010
New [Y2-x Mx][Sn2-x Mx]O7-3x/2 (0 ≤x≤ 0.30 for M = Mg and 0 ≤x≤ 0.36 for M = Zn) solid solutions with the pyrochlore structure were synthesized via high-temperature solid-state reaction method.
Mohamed Douma, El Hossain Chtoun, Raquel Trujillano, Vicente Rives   +3 more
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U-Pb dating of niobium minerals from the pyrochlore group (Ilmeny-Vishnevogorsky carbonatite-miaskite complex, South Urals)

Литосфера, 2020
The article covers the U-Pb dating of minerals belonging to the pyrochlore group from the rare-metal ore deposits of Ilmeny-Vishnevogorsky carbonatite-miaskite complex (South Urals). Individual pyrochlore crystals were dated through a new technique of in-
I. L. Nedosekova, V. A. Koroteev, B. V. Belyatsky, V. V. Sharygin, Е. N. Lepechinа, S. V. Pribavkin   +5 more
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Dielectric dispersion in Bi3Zn2Sb3O14 ceramic: a pyrochlore type phase

Materials Research, 2003
The electric and dielectric properties of Bi3Zn2Sb3O14 ceramic were studied by impedance spectroscopy. The measurements were performed in the frequency range 5 to 13 MHz and at temperature ranges from 25 to 700 degreesC.
Lanfredi Silvania, Nobre Marcos A. de Lima   +1 more
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Dry Reforming of Methane over Pyrochlore-Type La₂Ce₂O₇-Supported Ni Catalyst: Effect of Particle Size of Support

Molecules
The properties of supports (such as oxygen vacancies, oxygen species properties, etc.) significantly impact the anti-carbon ability due to their promotional effect on the activation of CO2 in dry reforming of methane (DRM).
Zeling Zhou, Chao Li, Junfeng Zhang, Qiliang Gao, Jiahao Wang, Qingde Zhang, Yizhuo Han   +6 more
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FROM THE HISTORY OF OPENING AND DEVELOPMENT ORE RICHES OF THE CHERRY MOUNTAINS IN THE URALS [PDF]

Минералогия, 2017
The main stages of exploration of mineral deposits and the contribution of many researchers to the study of geology and mineralogy of the Vishnevy Mountains in the Urals are considered.
V.I. Popova, S.N. Nikandrov
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'CHEMICAL ASSEMBLY' SYNTHESIS OF PIEZO-PHASE NANOSIZE POWDERS USED FOR PIEZO-CERAMICS MANUFACTURING

Advanced Engineering Research, 2010
'Chemical assembly' method of the nanoprecursors multifunctional matrixes which skeleton structure is similar to the structure of a final reaction product is developed.
Larisa E. PUSTOVAYA, Aleksey A. NESTEROV, Vladimir V. КRIKOV, Alexander S. PAKHOMOV   +3 more
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