Results 11 to 20 of about 323,461 (284)

Synthesis and crystal structure of ABW-type SrFe1.40V0.60O4

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2020
Single crystals of SrFe1.40V0.60O4, strontium tetraoxidodi[ferrate(III)/vanadate(III)], have been obtained as a side product in the course of sinter experiments aimed at the synthesis of double perovskites in the system SrO–Fe2O3–V2O5.
Thomas Gstir   +3 more
doaj   +1 more source

Development of Multi-Cation-Doped M-Type Hexaferrite Permanent Magnets

open access: yesApplied Sciences, 2022
We report enhanced permanent magnet performance for multi-cation–substituted M-type Sr-hexaferrites (SrM) prepared using conventional ceramic processes.
Jun-Pyo Lim, Min-Gu Kang, Young-Min Kang
doaj   +1 more source

Cation substitution for tunable electronic, optical and scintillation properties of Pb1-xCaxWO4 materials: A density functional theory study

open access: yesResults in Physics, 2021
Based on the density functional theory (DFT) calculations, we report on the influence of the cation substitution on the electronic, optical and scintillation properties of Pb1-xCaxWO4 with x = 0, 0.25, 0.5, 0.75 and 1).
Mohamed E. El Sayed   +3 more
doaj   +1 more source

The impact of Nd3+/La3+ substitution on the cation distribution and phase diagram in the La2SrAl2O7-Nd2SrAl2O7 system

open access: yesChimica Techno Acta, 2018
The effect of isovalent cation substitution of lanthanum atoms in the structure of La2SrAl2O7 oxide, and phase equilibria (solidus-liquidus curves) in the binary system La2SrAl2O7-Nd2SrAl2O7 were studied.
I. A. Zvereva   +4 more
doaj   +1 more source

Syntheses, crystal structures and Hirshfeld surface analysis of three salts of 1-(4-nitrophenyl)piperazine

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2023
The structures and Hirshfeld surface analysis of three salts of 1-(4-nitrophenyl)piperazine are discussed. In 4-(4-nitrophenyl)piperazin-1-ium salicylate (C10H14N3O2+·C7H5O3−), there are strong hydrogen bonds between cation and anion and the 4 ...
Sreeramapura D. Archana   +5 more
doaj   +1 more source

Color Point Tuning for (Sr,Ca,Ba) Si2O2N2:Eu2+ for White Light LEDs [PDF]

open access: yes, 2009
Color point tuning is an important challenge for improving white light LEDs. In this paper, the possibilities of color tuning with the efficient LED phosphor Sr1−x−y−zCaxBaySi2O2N2:Euz2+ (0 ≤ x, y ≤ 1; 0.005 ≤ z ≤ 0.16) are investigated.
Bachmann, Volker   +4 more
core   +1 more source

Effect of 2-Substitution on the Rearrangement of 1-Cyclopropylvinyl Cations [PDF]

open access: yes, 1973
2-Substitution in 1-cyclopropylvinyl cations produces a steric effect on cation generation and solvent trapping, but an electronic charge-stabilizing effect on cyclopropyl-to-cyclobutyl ...
Bergman, Robert G., Kelsey, Donald R.
core   +1 more source

Temperature dependence of magnetic properties of heat treated cobalt ferrite [PDF]

open access: yes, 2014
This study demonstrates the effectiveness of heat treatment in optimizing the magneticproperties of cobalt ferrite, compared to other methods such as cation substitution.
Jiles, David   +3 more
core   +3 more sources

Influence of cation substitution on mechanical properties of (Cu1-xAgx)7GeSe5I mixed crystals and composites on their base

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2020
Microhardness of (Cu1–xAgx)7GeSe5I mixed crystals and composites on their base was investigated using the Vickers indenter at room temperature. (Cu1–xAgx)7GeSe5I mixed crystals were obtained using the Bridgman–Stockbarger method. Composites on their base
A.V. Bendak   +5 more
doaj   +1 more source

Thermochemistry of Monocharged Cation Substitution in Ionic Solids

open access: yesStructural Chemistry, 2023
Abstract A rather straightforward synthetic procedure for the production of new materials is the substitution of principal ions in the crystal for one another, and some general principles relating to structure have been developed which guide the material designer as to which substitutions are likely to lead to ...
Leslie Glasser, Joel F. Liebman
openaire   +1 more source

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