A Dynamic Grey-Box Model and its Application in the Sintering Process of Ternary Cathode Material

The LiFePO4/C cathode material was synthesized by two–step addition of dual carbon sources method based on the in situ polymerization method combining with two–step sintering process. In this study, the structure and morphology have been studied systematically by X–ray diffraction (XRD) and scanning electron microscope (SEM).The electrochemical performances have been shown by the charge/discharge capacity, rate property, cycle performance. It was evidenced that the two–step addition of dual carbon sources had remarkable advantages, including the more complete coating carbon, and the improvement in the electrochemical performance of LiFePO4/C.

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A carbon-coated spinel zinc cobaltate doped with manganese and nickel as a cathode material for aqueous zinc-ion batteries

Dalton Transactions ◽

10.1039/d1dt00686j ◽

2021 ◽

Author(s):

Feifei Xing ◽

Xixun Shen ◽

Yongxiang Chen ◽

Xuran Liu ◽

TianTian Chen ◽

...

Keyword(s):

High Temperature ◽

Electrochemical Performance ◽

Cathode Material ◽

Spinel Structure ◽

Sol Gel ◽

Zinc Ion ◽

Sintering Process ◽

Excellent Electrochemical Performance ◽

Carbon Coated ◽

Redox Transitions

ZnNi0.5Mn0.5CoO4@C with a spinel structure was made via a sol–gel and high-temperature sintering process exhibits excellent electrochemical performance due to reversible multivalence redox transitions (Co4+/Co3+, Ni4+/Ni3+/Ni2+, and Mn4+/Mn3+).

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A 3D porous interconnected NaVPO4F/C network: preparation and performance for Na-ion batteries

RSC Advances ◽

10.1039/c5ra05161d ◽

2015 ◽

Vol 5 (50) ◽

pp. 40065-40069 ◽

Cited By ~ 29

Author(s):

Maowen Xu ◽

Chuan-Jun Cheng ◽

Qiang-Qiang Sun ◽

Shu-Juan Bao ◽

Yu-Bin Niu ◽

...

Keyword(s):

Electrochemical Performance ◽

Cathode Material ◽

Hydrothermal Method ◽

Sintering Process ◽

And Performance

3D porous interconnected NaVPO4F/C network is fabricated by a hydrothermal method and sintering process. As a Na-ion battery cathode material, it delivers a good electrochemical performance.

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Influence of NaCl on the formation of stoichiometric polycrystalline La0.85Na0.15MnO3

Bangladesh Journal of Scientific and Industrial Research ◽

10.3329/bjsir.v54i4.44563 ◽

2019 ◽

Vol 54 (4) ◽

pp. 289-296

Author(s):

R Majumder ◽

MM Hossain ◽

ME Hossain ◽

MAR Sarker

Keyword(s):

Solid State ◽

Cathode Material ◽

Solid State Reaction ◽

Lanthanum Manganite ◽

Sintering Process ◽

Flux Method ◽

Solid State Reaction Technique ◽

Conventional Solid State Reaction ◽

X Ray ◽

Synthesis Technique

Origination of defects and loss of Na during the sintering process are the major problems for the conventional solid-state synthesis technique to form sodium (Na) doped lanthanum manganite. To minimize defect and Na loss during the sintering process, the sodium (Na) doped lanthanum manganite with 15% substitution of La by Na (La0.85Na0.15MnO3) was synthesized using the NaCl flux material incorporated with the conventional solid-state reaction technique (flux method). The amount of micro strain, lattice strain and dislocation density for the flux method to grow polycrystalline La0.85Na0.15MnO3were detected successfully. The structural study using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Energy Dispersive Analysis X-Ray (EDAX) showed that the use of flux synthesis technique instead of conventional solid-state reaction technique was satisfactory to obtain stoichiometric La0.85Na0.15MnO3 polycrystalline structure with a smaller defect. From the closer inspection of the XRD spectrum for La0.85Na0.15MnO3 significantly showed a higher order layered structure for the cathode material for using this flux technique, which is a very important feature to increase the efficiency of the cathode material. Bangladesh J. Sci. Ind. Res.54(4), 289-296, 2019

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Microstructural Study of Diamond Deformed Under High Pressure and Temperature

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100118072 ◽

1985 ◽

Vol 43 ◽

pp. 230-231

Author(s):

E. F. Koch

Keyword(s):

High Pressure ◽

High Temperature ◽

Lattice Structure ◽

Diamond Particle ◽

Polycrystalline Diamond ◽

Sintering Process ◽

Ion Milling ◽

Sintered Compact ◽

Transmission Electron ◽

High Pressure Sintering

Because of the extremely rigid lattice structure of diamond, generating new dislocations or moving existing dislocations in diamond by applying mechanical stress at ambient temperature is very difficult. Analysis of portions of diamonds deformed under bending stress at elevated temperature has shown that diamond deforms plastically under suitable conditions and that its primary slip systems are on the ﹛111﹜ planes. Plastic deformation in diamond is more commonly observed during the high temperature - high pressure sintering process used to make diamond compacts. The pressure and temperature conditions in the sintering presses are sufficiently high that many diamond grains in the sintered compact show deformed microtructures.In this report commercially available polycrystalline diamond discs for rock cutting applications were analyzed to study the deformation substructures in the diamond grains using transmission electron microscopy. An individual diamond particle can be plastically deformed in a high pressure apparatus at high temperature, but it is nearly impossible to prepare such a particle for TEM observation, since any medium in which the diamond is mounted wears away faster than the diamond during ion milling and the diamond is lost.

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Three-Box Model of Sexual Orientation: A Challenge to Categorical Conceptualizations

PsycEXTRA Dataset ◽

10.1037/e715282007-001 ◽

2007 ◽

Author(s):

Joel T. Nadler ◽

Tyrel J. Starks ◽

Lynda M. Sagrestano ◽

Paul D. Sarvela

Keyword(s):

Sexual Orientation ◽

Box Model

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PERSONIFICATION OF STUDENTS INDEPENDENT WORK ON THE FORMATION OF THE ABILITY TO SOLVE COMPUTATIONAL PROBLEMS ON THE BASIS OF AUTOMATED TRAINING AND DIAGNOSTIC SYSTEM

Informatics and Education ◽

10.32517/0234-0453-2018-33-8-26-32 ◽

2018 ◽

pp. 26-32

Author(s):

N. I. Pak ◽

E. V. Asaulenko

Keyword(s):

Diagnostic System ◽

Educational Process ◽

Box Model ◽

Self Management ◽

Practical Implementation ◽

Learning Tools ◽

Theoretical Rationale ◽

E Learning ◽

Independent Work ◽

Selection Of

The relevance of the study under consideration is due to the need to increase the efficiency of students independent work in solving computational problems. A theoretical rationale is proposed and the practical implementation of an automated training and diagnostic system for the formation of skills to solve problems according to the “white box” model is described. The leading idea of the study is the construction of mental schemes for a given topic, which allow to visualize the dynamics of changes in the learner’s level of ability to solve computational problems. The methods of accounting for forgetting educational information and methods of personalized selection of tasks are substantiated. The site for self-management of user independent work is available at the link: http://msbx.ru. The materials of the article are of practical value for teachers who use e-learning tools in the educational process.

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