Results 81 to 90 of about 599,791 (275)
Phase diagram of Sm-Nd-Fe ternary system
Transactions of Nonferrous Metals Society of China, 2013 Phase equilibria of the Sm-Nd-Fe ternary system were determined in an isothermal section of 500 °C and vertical sections of SmFe2–NdFe2 and (Sm0.86Nd0.12)Fex (1.6≤x≤2.4) by optical microscopy, X-ray diffraction analysis, electron probe microanalysis (EPMA), and differential thermal analysis (DTA) techniques.
Bo-wen WANG +5 more
openaire +1 more source
Advanced Science, EarlyView.Perovskite‐type oxide lanthanoid‐substituted BiCoO3 exhibits a reversible negative thermal expansion (NTE) originated from the coordination change from the CoO5 pyramid to the CoO6 octahedron due to melting of the dxy orbital ordering in the d6 electron configuration, and the 6.1% volume shrinkage in Bi0.82Nd0.18CoO3 is the largest ever observed in the
Yuki Sakai +10 more
wiley +1 more source
Sm-Nd and U-Pb systematics of single titanite grains
, 2016 Combined Sm-Nd and U-Pb isotopic systems in single titanite grains from Archean rocks may be used to obtain Nd isotope composition at the time of titanite growth.
Amelin, Yuri
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Advanced Electronic Materials, EarlyView.A physics‐guided generative surrogate framework is developed for programmable metasurface beamforming. Mode‐conditioned binary state generation, aperture‐physics prediction, routed residual correction, NSGA‐II optimization, and CST validation are combined to support fast candidate screening and full‐wave beam refinement across single‐beam, dual‐beam ...
Wenqian Liu +4 more
wiley +1 more source
Procedure for Sm-Nd Internal Isochron Dating Method on Basalt by Phase Separation
Yankuang ceshi, 2014 Accurately dating the age of basalt has been an important scientific issue for geologists. Due to its unique texture and composition, the basaltic minerals are limited to certain types, with scarce zircons in tiny grain sizes.
ZHANG Li-guo +7 more
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Литосфера, 2019 В статье представлены результаты изотопно-геохронологических исследований нескольких рудоносных интрузий северо-востока Балтийского щита с использованием сульфидных минералов в качестве Sm-Nd геохронометров.
doaj
Redetermination of the Sm-Nd Age and Initial (Epsilon)Nd of Lunar Troctolite 76535: Implications for Lunar Crustal Development [PDF]
, 2012 Lunar troctolite 76535 is an old lunar rock predating the era of the lunar cataclysmic bombardment, but its radiometrially determined ages have been discordant [1-3].
Nyquist, Laurence E. +2 more
core
Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells
Advanced Energy Materials, EarlyView.Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu +4 more
wiley +1 more source
Angewandte Chemie, EarlyView.Apart from (transition) metal (oxo)halides only few hosts stabilize chalcogenide cations in purely oxoanionic coordination environment. Herein, we report on five borosulfates containing the Se42+ ion and characterize the compounds using X‐ray diffraction, diffuse reflectance spectroscopy, density functional theory (DFT) calculations along with magnetic
Erich Turgunbajew +11 more
wiley +2 more sources
Cинтез та кристалiчна структура двошарових iндотитанатiв Sr2LnInTiO7
Доповiдi Нацiональної академiї наук УкраїниВизначено протяжнiсть областi сполук з шаруватою перовськiтоподiбною структурою (ШПС) в ряду двошарових перовськiтiв Sr2LnInTiO7. Синтезовано новi iндотитанати Sr2LnInTiO7 (Ln La, Pr, Nd, Sm) при термообробцi еквiмолярних сумiшей Sr2TO4 +LnInO3 та ...
Y.A. Titov +4 more
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