Effect of Fluorine Substitution on the Electrochemical Property and Structural Stability of a Lithium-Excess Cation Disordered Rock-Salt Cathode

Salt rock has been used as hast rock to storing hydrocarbons and disposing nuclear wastes because of its low permeability. On other hand it deforms under even low deviatoric stress which threatens the structural stability of salt caverns. Rock mechanical stability is one of important stages in salt cavern’s design and construction, though mechanical factors (such as nonlinear behavior of rock salt), thermal factors (such as temperature changes during injection and production) and hydraulic factors (such as salt permeability and viscosity of stored material) affect on short term and long term behavior of salt cavern. Various criteria and methods have been investigated for salt cavern’s design and stability analysis. In this paper, by taking into account the importance of structural stability of salt cavern, the general behavior of rock salt and salt cavern are given. It reviews the various design concepts and methods and, in the following, stability criteria including stress-based and damage-based are also discussed. It is assigned that the RD stability criterion is more comprehensive than others.

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Structural stability and electronic structures of (111) twin boundaries in the rock-salt MnS

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2013.08.073 ◽

2014 ◽

Vol 582 ◽

pp. 181-185 ◽

Cited By ~ 10

Author(s):

Y.B. Xue ◽

Y.T. Zhou ◽

D. Chen ◽

X.L. Ma

Keyword(s):

Structural Stability ◽

Rock Salt ◽

Electronic Structures ◽

Twin Boundaries

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Time-resolved high-resolution electron microscopy of structural stability in mgo clusters

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100165823 ◽

1996 ◽

Vol 54 ◽

pp. 672-673

Author(s):

T. Kizuka ◽

N. Tanaka

Keyword(s):

Electron Microscopy ◽

High Resolution ◽

Magnesium Oxide ◽

Structural Stability ◽

High Resolution Electron Microscopy ◽

Video Tape ◽

Solid State Physics ◽

Time Resolved ◽

Resolution Electron ◽

Structural And Functional Properties

Structure and stability of atomic clusters have been studied by time-resolved high-resolution electron microscopy (TRHREM). Typical examples are observations of structural fluctuation in gold (Au) clusters supported on silicon oxide films, graphtized carbon films and magnesium oxide (MgO) films. All the observations have been performed on the clusters consisted of single metal element. Structural stability of ceramics clusters, such as metal-oxide, metal-nitride and metal-carbide clusters, has not been observed by TRHREM although the clusters show anomalous structural and functional properties concerning to solid state physics and materials science.In the present study, the behavior of ceramic, magnesium oxide (MgO) clusters is for the first time observed by TRHREM at 1/60 s time resolution and at atomic resolution down to 0.2 nm.MgO and gold were subsequently deposited on sodium chloride (001) substrates. The specimens, single crystalline MgO films on which Au particles were dispersed were separated in distilled water and observed by using a 200-kV high-resolution electron microscope (JEOL, JEM2010) equipped with a high sensitive TV camera and a video tape recorder system.

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