Results 41 to 50 of about 366,434 (291)

Synthesis and characterization of La_0.8Sr_1.2Co_0.5M_0.5O_4-? (M=Fe, Mn) [PDF]

, 2009
The M4+-containing K2NiF4-type phases La0.8Sr1.2Co0.5Fe0.5O4 and La0.8Sr1.2Co0.5Mn0.5O4 have been synthesized by a sol-gel procedure and characterized by X-ray powder diffraction, thermal analysis, neutron powder diffraction and Mössbauer spectroscopy ...
Bowman, Bréard, Bull, C. Greaves, Dann, El Shinawi, F.J. Berry, H. El Shinawi, Hayward, Hector, Hill, J.F. Marco, Karen, Labbe, Larson, Prado, Rao, Sears, Skinner, Vashook   +19 more
core   +1 more source

Structure of Carbon Materials Explored by Local Transmission Electron Microscopy and Global Powder Diffraction Probes

C, 2018
Transmission electron microscopy and neutron or X-ray diffraction are powerful techniques available today for characterization of the structure of various carbon materials at nano and atomic levels. They provide complementary information but each one has
Karolina Jurkiewicz, Mirosława Pawlyta, Andrzej Burian   +2 more
doaj   +1 more source

Investigation of the magnetic structure and crystal field states of pyrochlore antiferromagnet Nd2Zr2O7 [PDF]

, 2015
We present synchrotron x-ray diffraction, neutron powder diffraction and time-of-flight inelastic neutron scattering measurements on the rare earth pyrochlore oxide Nd2Zr2O7 to study the ordered state magnetic structure and cystal field states.
Abernathy, D. L., Anand, V. K., Bera, A. K., Casati, N., Frontzek, M., Lake, B., Siemensmeyer, K., Xu, J.   +7 more
core   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

A Review of Synthesis, Characterization, Properties, and Applications of Double Perovskite Oxides

Inorganics
Double perovskites are represented by the formula A2BB’O6 and AA’BB’O6. These materials have been synthesized using the solid-state reaction, sol–gel, Pechini, and hydrothermal methods.
Pablo V. Tuza, Mariana M. V. M. Souza
doaj   +1 more source

Combined experimental powder X-ray diffraction and DFT data to obtain the lowest energy molecular conformation of friedelin

Química Nova, 2012
Friedelin molecular conformers were obtained by Density Functional Theory (DFT) and by ab initio structure determination from powder X-ray diffraction. Their conformers with the five rings in chair-chair-chair-boat-boat, and with all rings in chair, are ...
Djalma Menezes de Oliveira, Wagner da Nova Mussel, Lucienir Pains Duarte, Grácia Divina de Fátima Silva, Hélio Anderson Duarte, Elionai Cassiana de Lima Gomes, Luciana Guimarães, Sidney A. Vieira Filho   +7 more
doaj   +1 more source

One-pot combustion synthesis of nickel oxide and hematite: From simple coordination compounds to high purity metal oxide nanoparticles [PDF]

Science of Sintering, 2020
This work is the first report of a very simple and fast one-pot synthesis of nickel oxide (NiO) and hematite (α-Fe2O3) nanoparticles by thermal decomposition of transition metal aqua complexes with camphor sulfonate anions.
Jeremić Dejan, Anđelković Ljubica, Milenković Milica R., Šuljagić Marija, Šumar-Ristović Maja, Ostojić Sanja, Nikolić Aleksandar S., Vulić Predrag, Brčeski Ilija, Pavlović Vladimir   +9 more
doaj   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Exploring local disorder in fast oxygen ion conductors by atomic pair distribution function analysis

EPJ Web of Conferences, 2015
A preliminary structural investigation of local disorder in fully oxidized La2NiO4+δ was performed by Pair Distribution Function (PDF) analyses of X-ray and neutron powder diffraction data.
Brunelli Michela, Ceretti Monica
doaj   +1 more source

Absence of anomalous negative lattice-expansion for polycrystalline sample of Tb2Ti2O7

, 2011
High resolution X-ray powder-diffraction experiments on a well-characterized polycrystalline sample of the spin liquid Tb2Ti2O7 reveal that it shows normal positive thermal-expansion above 4 K, which does not agree with the intriguing anomalous negative ...
Anderson P. W., Balents L., Bramwell S. T., Enjalran M., Gardner J. S., Gardner J. S., Gardner J. S., Gingras M. J. P., Hamaguchi N., Han S.-W., Izumi F., Kao Y.-J., Lacroix C., Lee P. A., Mamsurova L. G., Molavian H. R., Nakanishi Y., Ruff J. P. C., Syôzi I., Wannier G. H., Yasui Y.   +20 more
core   +1 more source