Extended Deformable Tension-Shear Model for Graphene Layered Materials with Non-uniform Staggering

Layered materials draw attention in recent years in response to the world-wide drive to discover new functional materials. High-Tc superconducting oxide is one example. Internal interfaces in such layered materials differ significantly from those of cubic metals. They are often parallel to the layer of the neighboring crystals in sintered samples(layer plane boundary), while periodically ordered interfaces with the two neighboring crystals in mirror symmetry to each other are relatively rare. Consequently, the atomistic features of the interface differ significantly from those of cubic metals. In this paper grain boundaries in sintered high-Tc superconducting oxides, joined interfaces between engineering ceramics with metals, and polytype interfaces in vapor-deposited bicrystal are examined to collect atomic information of the interfaces in layered materials. The analysis proved that they are not neccessarily more complicated than that of simple grain boundaries in cubic metals. The interfaces are majorly layer plane type which is parallel to the compound layer. Secondly, chemical information is often available, which helps the interpretation of the interface atomic structure.

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Design diagrams for reliable layered materials

10.2514/6.1996-1476 ◽

1996 ◽

Cited By ~ 1

Author(s):

S. Spearing

Keyword(s):

Layered Materials

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Lightweight Layered Materials/Structures for Damage Tolerant Armor

10.21236/ada411496 ◽

2003 ◽

Author(s):

C. T. Sun ◽

K. J. Bowman ◽

J. F. Doyle ◽

H. Espinosa ◽

K. P. Trumble

Keyword(s):

Layered Materials ◽

Damage Tolerant

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Dependence between calculated flexibility of lamellas of layered materials and their ability to undergo intercalation reactions

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19912859 ◽

1991 ◽

Vol 56 (12) ◽

pp. 2859-2868 ◽

Cited By ~ 4

Author(s):

Jiří Votinský ◽

Ludvík Beneš

Keyword(s):

Computational Procedure ◽

Layered Materials ◽

Space Group

A computational procedure has been suggested enabling estimates of the flexibility of individual layered materials from their crystallographical structure. The data about flexibility of layers have been obtained by calculation for compounds of the type Q2Y3 (Q = SbIII, BiIII; Y = Se-II, Te-II; space group of symmetry R3m), MPS3 (M = MnII, FeII, CoII, NiII, CdII,C2/m), TX2 (T = NbIV, TaIV, MoV; X = S-II, Se-II; P63/mmc), FeOCl (Pmnm), Zr(HPO4)2 (P21/n) and ROPO4 (R = VV, NbV, Mo; P4/n). The flexibility of the layers of these compounds increases in the order: Q2Y3 << MPS3 < TX2 < FeOCl = Zr(HPO4)2 < ROPO4. The same trend is observed for the ability of these compounds to form intercalates. In most of the structures given a distinct anisotropy of flexibility has been found by the calculation.

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WO3/p-Type-GR Layered Materials for Promoted Photocatalytic Antibiotic Degradation and Device for Mechanism Insight

Nanoscale Research Letters ◽

10.1186/s11671-019-2975-1 ◽

2019 ◽

Vol 14 (1) ◽

Cited By ~ 1

Author(s):

Wenfeng Zhao ◽

Xiaowei Wang ◽

Lizhe Ma ◽

Xuanbo Wang ◽

Weibin Wu ◽

...

Keyword(s):

Layered Materials ◽

P Type ◽

Antibiotic Degradation

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The Location of Magnetic Reconnection at Earth’s Magnetopause

Space Science Reviews ◽

10.1007/s11214-021-00817-8 ◽

2021 ◽

Vol 217 (3) ◽

Author(s):

K. J. Trattner ◽

S. M. Petrinec ◽

S. A. Fuselier

Keyword(s):

Magnetic Field ◽

Solar Wind ◽

Magnetic Reconnection ◽

Ion Beams ◽

Review Article ◽

Observational Evidence ◽

Magnetic Shear ◽

General Direction ◽

Shear Model ◽

Wide Range

AbstractOne of the major questions about magnetic reconnection is how specific solar wind and interplanetary magnetic field conditions influence where reconnection occurs at the Earth’s magnetopause. There are two reconnection scenarios discussed in the literature: a) anti-parallel reconnection and b) component reconnection. Early spacecraft observations were limited to the detection of accelerated ion beams in the magnetopause boundary layer to determine the general direction of the reconnection X-line location with respect to the spacecraft. An improved view of the reconnection location at the magnetopause evolved from ionospheric emissions observed by polar-orbiting imagers. These observations and the observations of accelerated ion beams revealed that both scenarios occur at the magnetopause. Improved methodology using the time-of-flight effect of precipitating ions in the cusp regions and the cutoff velocity of the precipitating and mirroring ion populations was used to pinpoint magnetopause reconnection locations for a wide range of solar wind conditions. The results from these methodologies have been used to construct an empirical reconnection X-line model known as the Maximum Magnetic Shear model. Since this model’s inception, several tests have confirmed its validity and have resulted in modifications to the model for certain solar wind conditions. This review article summarizes the observational evidence for the location of magnetic reconnection at the Earth’s magnetopause, emphasizing the properties and efficacy of the Maximum Magnetic Shear Model.

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