Results 31 to 40 of about 52,239 (140)

Provenance of fine-grained sedimentary rocks derived from Rb-Sr and Sm-Nd analyses: the example of the Santa Maria Formation (Triassic, Parana Basin, Southern Brazil)

Latin American Journal of Sedimentology and Basin Analysis, 2006
In this work, the Rb-Sr and Sm-Nd methods were applied to fine-grained sedimentary rock samples of the Santa Maria Formation (Triassic, Paraná Basin) in order to have provenance informations.
Diogo Rodrigues Andrade Da Silva, Ana Maria Pimentel Mizusaki, Sylvia Maria Couto Dos Anjos, Edinei Koester, André Weissheimer De Borba   +4 more
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Closure temperatures of the Sm—Nd system in metamorphic garnets [PDF]

Earth and Planetary Science Letters, 1992
Abstract Garnet-whole rock and garnet-mineral isochrons were determined on granulite facies gneisses and amphibolites from the Archean Pikwitonei Granulite Domain of the Superior Province, and the Proterozoic Central Gneiss Belt and Adirondack Highlands of the Grenville orogen.
Mezger, Klaus, Essene, Eric J., Halliday, Alexander N.   +2 more
openaire   +3 more sources

Double beta decay of 150Nd to the first excited 0+ level of 150Sm: Preliminary results [PDF]

Ядерна фізика та енергетика, 2018
The double beta decay of 150Nd to the first excited 0+ level of 150Sm (Eexc = 740.5 keV) was investigated with the help of the ultra-low-background setup consisting of four HP Ge (high-purity germanium) detectors (≃225 cm3 volume each one) at ...
A. S. Barabash, P. Belli, R. Bernabei, R. S. Boiko, F. Cappella, V. Caracciolo, R. Cerulli, F. A. Danevich, A. Di Marco, A. Incicchitti, D. V. Kasperovych, R. V. Kobychev, V. V. Kobychev, S. I. Konovalov, M. Laubenstein, D. V. Poda, O. G. Polischuk, V. I. Tretyak, V. I. Umatov   +18 more
doaj   +1 more source

Electrochemical Behaviour of Nd–Fe–B and Sm–Fe–N Polymer-Bonded Magnets and Their Metal Components in Various Electrolytes

Corrosion and Materials Degradation
Polymer-bonded Nd–Fe–B and Sm–Fe–N magnets have excellent magnetic properties, but their corrosion resistance is inferior. Polymer-bonded magnets, the binary alloys Nd–Fe and Sm–Fe, and the metals Fe, Nd, and Sm were investigated in electrolytes with a ...
Nikolina Lešić, Janez Kovač, Ingrid Milošev   +2 more
doaj   +1 more source

Bi-modal particle size distribution for high energy product hybrid Nd–Fe–B—Sm–Fe–N bonded magnets

AIP Advances
In this work, we have demonstrated high energy product bonded magnet by leveraging the variation in sizes between Nd-Fe-B and Sm-Fe-N, as well as their hard magnetic properties.
Harshida Parmar, M. Parans Paranthaman, I. C. Nlebedim   +2 more
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Phase Relations in Ba6−3xLn8+2xTi18O54 (Ln = Nd & Sm) Electroceramics

Advances in Condensed Matter Physics, 2013
A careful, systematic investigation of Ba6−3xLn8+2xTi18O54 (BLnTss) ceramics has been performed in order to understand the relationship between composition, microstructure evolution, and microwave dielectric properties.
Amanda L. Snashall, Yun Liu, Frank Brink, Ray L. Withers, Steven Cooper   +4 more
doaj   +1 more source

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, Wen-mei HUANG, Zhi-chao JI, Zhi-hua WANG, Ying SUN, Ling WENG   +5 more
openaire   +1 more source

Sedimentary provenance in the southern sector of the São Francisco Basin, SE Brazil

Brazilian Journal of Geology
: We present new Sm-Nd, U-Pb and Hf isotope geochronological data for the siliciclastic rocks in the southern sector of the São Francisco Basin. An abrupt change in the Sm-Nd data is observed from the Carrancas Formation’s oligomitic conglomerates (TDM ...
Gustavo Macedo de Paula-Santos, Marly Babinski   +1 more
doaj   +1 more source

Блоки доордовикских пород в структуре Платиноносного пояса Урала: Sm-Nd изотопный возраст дунит-клинопироксенит-тылаитового комплекса массива Денежкин Камень

Литосфера, 2019
По 14 валовым пробам и 4 фракциям клинопироксена Sm-Nd методом датирован разрез стратифицированного блока дунит-клинопироксенит-тылаитового комплекса (горячего меланжа) в структуре массива Денежкин Камень.

doaj  

Influence of Thermal Treatment on the Chemical and Structural Properties of Geopolymer Gels Doped with Nd₂O₃ and Sm₂O₃

Gels
In this research, the influence of the thermal treatment of geopolymer gels at 300 °C, 600 °C and 900 °C when incorporated with 5% rare earth elements (REEs) in the form of (GP-Sm) Sm2O3 and (GP-Nd) Nd2O3 was investigated.
Miloš Nenadović, Sanja Knežević, Marija Ivanović, Snežana Nenadović, Danilo Kisić, Maja Popović, Jelena Potočnik   +6 more
doaj   +1 more source