Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
采用喷雾干燥法合成了LiNi0.5Co0.2Mn0.3O2正极材料。XRD表明样品均为纯相，无其它杂相存在。SEM研究表明，各样品均为类球形结构，温度升高颗粒粒径增大。电化学研究表明，900℃下合成的样品具有最优的电化学性能，该样品在0.1C倍率下的首次放电比容量为163.0 mAh∙g−1，循环50次后的容量保持率为92.6%。 LiNi0.5Co0.2Mn0.3O2 cathode materials were synthesized by the spray-drying method. XRD results reveal that the samples are pure phase and no impurities…
There exists a myriad of quantum transport phenomena in highly mobile 2D electrons placed in a perpendicular magnetic field. We study the effects of tilted magnetic field on these transport properties to understand how the energy spectrum evolves. We observe significant changes of the electron transport in quantum wel…
Os aços inoxidáveis possuem uma grande importância tecnológica devido suas excelentes propriedades mecânicas, além de ser capaz de gerar sobre a superfície um filme de óxido protetor que retarda o processo de corrosão. Porém, em determinados projetos, a cor cinza metálica do aço inoxidável não é cor final desejada. Bu…
Представлены результаты исследования высокотемпературной сверхэластичности, температурной зависимости предела текучести 14M- и L10-мартенсита в [001]-монокристаллах Ni54Fe19Ga27 при сжатии. С ростом температуры происходит изменение последовательности мартенситных превращений под нагрузкой с L21-14M на L21-L10. Предел…
The precise estimation of Pearsons correlations, also called "representativity" coefficients, between core configurations is a fundamental quantity for properly assessing the nuclear data (ND) uncertainties propagation on integral parameters such as k-eff, power distributions, or reactivity coefficients. In this paper…
A 2D FEM approach for studying dislocation-phase boundary interaction is proposed. By adopting the classical Peierls-Nabarro model as a glide plane model, a natural interplay between dislocations, external boundaries and phase boundary is provided. Thereby the local dislocation induced stress field in the vicinity of…
Graphene, a monolayer of graphite, possesses a combination of many superlative properties, such as excellent electrical conductivity, great mechanical strength, and large specific surface area. These remarkable properties provide for widespread applications, ranging from structural materials to flexible electronics. T…
With the development of oil field into the late period of high water cut, the influence of casing damage on oil field development attracts more and more attention.So it's time to begin studying how to prevent and control casing damage. In the non oil layer casing damage well, 49.7% in A -B Interlayer of casing damage,…
Journal of Nano- and Electronic Physics. Scientific journal. ISSN: 2077-6772. Journal abbreviation: J. Nano- Electron. Phys. No page charges. All articles are freely available on-line. Issued 4 times per year. Publisher: Sumy State University. (Sumy, Ukraine)
Transition metal dichalcogenide(TMDC) monolayers are atomically thin semiconductor materials of MX2 type, where M is the metal and X is the chalcogenide, that have similar honeycomb structure to graphene and exhibit unique electrical, thermal, and optical properties. Through substitution, the material properties can b…
We present the design analysis of a point focused electron beam emitter using numerical techniques. Simulation and modeling were performed followed by the calculation of emission parameters using programming codes EGUN and CST-PS. Beam emittance, average current density and perveance were calculated and are in agreeme…
This study proposes a method for determining the equivalent circuit constants of synchronous machines. First, a new approach to calculate the equivalent circuit constants considering mutual leakage reactance between field and damper windings is proposed. This method can determine the constants by substituting synchron…
This thesis presents original work towards the successful formation of novel thermochromic composite fibres through melt extrusion processes, and whose major application includes incorporation into wound dressings and garments, for the thermal mapping of chronic wound bed surfaces and skin surfaces, within the physiol…
Polypropylene (PP) is one of the most commonly used plastics because of its low density, outstanding mechanical properties, and low cost. However, its drawbacks such as low surface energy, poor dyeability, lack of chemical functionalities, and poor compatibility with polar polymers and inorganic materials, have restri…
In this thesis, the potential of the electrospinning technique as a tool for the preparation of fuel cell electrodes was studied. In the first part of the work, electrospinning was used to prepare porous electrode structures that allow for rapid transport of both fuel and water as well as protons and electrons to and…
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease affecting the upper and lower motor neurons causing muscle atrophy and paralysis followed by death. Aggregates containing superoxide dismutase (SOD1) are found as pathological hallmark in diseased ALS patients. Consequently ALS is regarded as a protein…
Nanoporous gold (NPG) is conventionally made via dealloying methods1. We present an alternative method for bottom-up chemical synthesis of nanoporous gold film (cNPGF), with properties resembling those of dealloyed NPG. The developed procedure is simple and only benign chemicals are used. Chloroauric acid is reduced t…
Due to increasing threats from terrorism in the past decades, progressive collapse modeling of buildings is gaining popularity with objective of simulating collapse process of the whole or partial structural system, in order to give useful insight to improve existing design for the structure against progressive collap…
Выполнены исследования магнитных свойств кислород-дефицитного нанокристаллического недопированного диоксида титана, синтезированного газофазным, электровзрывным и химическим методами. Дефектное состояние контролировалось с помощью восстановительных обработок в вакууме или в среде водорода. Показано, что дефектное сост…
С использованием ab initio расчетов получены данные о структурных, электронных, оптических свойствах титаната висмута со структурой типа пирохлора и соединений с замещением атомами скандия, индия позиций висмута, титана. Результаты теоретических расчетов согласуются с экспериментально полученными структурными и оптиче…