Results 61 to 70 of about 5,955,595 (194)

PHASE STRUCTURE OF Fe-Co-Ni NANOSYSTEMS: TEMPERATURE EFFECT

open access: yesВестник Кемеровского государственного университета, 2014
The processes occurring in biphase powders of Fe – Co – Ni at heating in vacuum are studied in the paper. Samples are synthesized by hydrazinehydrate reduction of metal salts in aqua solutions at highly alkaline medium. When drawing phase diagrams of the
K. A. Datiy   +2 more
doaj  

Phase structure of resource allocation games

open access: yesPhysics Letters A, 2003
We consider a class of games that are generalizations of the minority game, in that the demand and supply of the resource are specified independently. This allows us to study systems in which agents compete for a resource under different demand loads. Among other features, we find, using numerical simulations the existence of a robust phase change with
Savit, Robert   +3 more
openaire   +3 more sources

Superconductivity in Pseudo-Binary Silicide SrNixSi2-x with AlB2-Type Structure

open access: yes, 2012
We demonstrate the emergence of superconductivity in pseudo-binary silicide SrNixSi2-x. The compound exhibits a structural phase transition from the cubic SrSi2-type structure (P4132) to the hexagonal AlB2-type structure (P6/mmm) upon substituting Ni for
Bordet P.   +25 more
core   +1 more source

The Characters of Mo-MoSi2 Functionally Graded Coating

open access: yesHigh Temperature Materials and Processes, 2014
Mo-MoSi2 functionally graded coating on Mo substrate is prepared by siliconizing technology. The characters of Mo-MoSi2 functionally graded coating are analyzed by SEM, EDS, GDS and XRD. The result shows that Mo-MoSi2 functionally graded coating is dense
Zhang Ying-Yi   +3 more
doaj   +1 more source

Magnetic properties of a novel Pr Fe Ti phase [PDF]

open access: yes, 1994
In a systematic study of the (Pr1−xTix)Fe5 alloy series, the (Pr0.65Ti0.35)Fe5 alloy has been found to have a dominant phase with either the rhombohedral Th2Zn17 structure or the newly discovered Nd2(Fe,Ti)19 (S. J. Collocott, R. K. Day, J. B. Dunlop,
Bowden, G. J.   +6 more
core  

Intermediate-pressure phases of cerium studied by an LDA + Gutzwiller method

open access: yes, 2013
The thermodynamic stable phase of cerium metal in the intermediate pressure regime (5.0--13.0 GPa) is studied in detail by the newly developed local-density approximation (LDA)+ Gutzwiller method, which can include the strong correlation effect among the
Dai, Xi   +3 more
core   +1 more source

Ultra-high energy harvester performance in KNN-based textured piezoceramics via multiscale reconfiguration design

open access: yesJournal of Advanced Ceramics
The lower electromechanical performance of lead-free piezoelectric materials remains a critical bottleneck impeding their ability to replace lead-based materials in energy harvesting.
Caixia Zhu   +5 more
doaj   +1 more source

Electrical properties and luminescence properties of 0.96(K0.48Na0.52)(Nb0.95Sb0.05)–0.04Bi0.5(Na0.82K0.18)0.5ZrO3-xSm lead-free ceramics

open access: yesJournal of Advanced Ceramics, 2020
In this paper, Sm-doped 0.96(K0.48Na0.52)(Nb0.95Sb0.05)–0.04Bi0.5(Na0.82K0.18)0.5ZrO3 (abbreviated as KNSN–0.04BNKZ) lead-free piezoelectric ceramics were prepared by conventional solid-state sintering method and the effects of Sm2O3 on the phase ...
Wei Li   +8 more
doaj   +1 more source

Periodic alternating $0,\pi$-junction structures as realization of $\phi$-Josephson junctions

open access: yes, 2003
We consider the properties of a periodic structure consisting of small alternating 0- and pi- Josephson junctions. We show that depending on the relation between the lengths of the individual junctions, this system can be either in the homogeneous or in ...
A. Buzdin   +15 more
core   +3 more sources

Sm2O3-doped 0.28PIN-0.32PZN-(0.4-x)PZ-xPT piezoelectric ceramics with high Curie temperature and piezoelectric constant

open access: yesJournal of Asian Ceramic Societies
In this work, Sm2O3-doped 0.28PIN-0.32PZN-(0.4-x)PZ-xPT (Sm-PbIZZT) ceramics were prepared by using the solid-state method. The microstructure and piezoelectric properties of Sm-PbIZZT were systematically analyzed. The results show that as the PT content
Xiaoyu Xu   +10 more
doaj   +1 more source

Home - About - Disclaimer - Privacy