scholarly journals Correlated fluorine diffusion and ionic conduction in the nanocrystalline F− solid electrolyte Ba0.6La0.4F2.4—19F T1(ρ) NMR relaxation vs. conductivity measurements

2014 ◽  
Vol 16 (20) ◽  
pp. 9580-9590 ◽  
Author(s):  
F. Preishuber-Pflügl ◽  
P. Bottke ◽  
V. Pregartner ◽  
B. Bitschnau ◽  
M. Wilkening
Keyword(s):  
Solid Electrolyte ◽  
Long Range ◽  
Short Range ◽  
Ionic Conduction ◽  
Nmr Relaxation ◽  
Conductivity Measurements ◽  
Nmr Relaxometry ◽  
Migration Pathways

19F NMR relaxometry and conductivity spectroscopy precisely track the defect-mediated short-range and long-range anion migration pathways in nanocrystalline Ba0.6La0.4F2.4.

scholarly journals Short-range Li diffusion vs. long-range ionic conduction in nanocrystalline lithium peroxide Li2O2—the discharge product in lithium-air batteries

2014 ◽  
Vol 7 (8) ◽  
pp. 2739-2752 ◽  
Author(s):  
A. Dunst ◽  
V. Epp ◽  
I. Hanzu ◽  
S. A. Freunberger ◽  
M. Wilkening
Keyword(s):  
Short Range ◽  
Ionic Conduction ◽  
High Energy ◽  
Ion Dynamics ◽  
Nmr Relaxometry ◽  
Lithium Peroxide ◽  
Discharge Product ◽  
Energy Ball ◽  
Spin Locking ◽  
Lithium Air Batteries

Conductivity spectroscopy and 7Li spin-locking NMR relaxometry reveal enhanced ion dynamics in nanocrystalline Li2O2 prepared by high-energy ball milling.

scholarly journals Structural basis of long-range to short-range synaptic transition in NHEJ

Nature ◽  
2021 ◽  
Author(s):  
Siyu Chen ◽  
Linda Lee ◽  
Tasmin Naila ◽  
Susan Fishbain ◽  
Annie Wang ◽  
...  
Keyword(s):  
Long Range ◽  
Short Range ◽  
Structural Basis

scholarly journals Comparison of short-range order in irradiated dysprosium titanates

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Roman Sherrod ◽  
Eric C. O’Quinn ◽  
Igor M. Gussev ◽  
Cale Overstreet ◽  
Joerg Neuefeind ◽  
...  
Keyword(s):  
Long Range ◽  
Short Range ◽  
Structural Model ◽  
Ion Irradiation ◽  
Function Analysis ◽  
Ion Beam ◽  
Structural Response ◽  
Heavy Ion ◽  
Range Order ◽  
Radiation Resistant

AbstractThe structural response of Dy2TiO5 oxide under swift heavy ion irradiation (2.2 GeV Au ions) was studied over a range of structural length scales utilizing neutron total scattering experiments. Refinement of diffraction data confirms that the long-range orthorhombic structure is susceptible to ion beam-induced amorphization with limited crystalline fraction remaining after irradiation to 8 × 1012 ions/cm2. In contrast, the local atomic arrangement, examined through pair distribution function analysis, shows only subtle changes after irradiation and is still described best by the original orthorhombic structural model. A comparison to Dy2Ti2O7 pyrochlore oxide under the same irradiation conditions reveals a different behavior: while the dysprosium titanate pyrochlore is more radiation resistant over the long-range with smaller degree of amorphization as compared to Dy2TiO5, the former involves more local atomic rearrangements, best described by a pyrochlore-to-weberite-type transformation. These results highlight the importance of short-range and medium-range order analysis for a comprehensive description of radiation behavior.

scholarly journals Freeze–Thaw Effect on Road Concrete Containing Blast Furnace Slag: NMR Relaxometry Investigations

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3288
Author(s):  
Liliana Maria Nicula ◽  
Ofelia Corbu ◽  
Ioan Ardelean ◽  
Andrei Victor Sandu ◽  
Mihai Iliescu ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Nmr Relaxation ◽  
Invasive Technique ◽  
Freeze Thaw ◽  
Nmr Relaxometry ◽  
Main Technique ◽  
Relaxation Measurements ◽  
Furnace Slag ◽  
Standard Techniques

The present work investigates the effect of freeze–thaw cycles on the porosity of three mixtures of road concrete containing blast furnace slag in comparison with two mixtures made with conventional materials. The main technique used in our investigations is nuclear magnetic resonance (NMR) relaxometry. This permitted the extraction of information with respect to the freeze–thaw effect on pore-size distribution, which influences both the mechanical strength and the molecular transport through the material. Moreover, by using this technique, the structure of the air voids was analyzed for the entire pore system in the cement paste and the aggregate particles. The samples under study were first dried in a vacuum oven and then saturated with water or cyclohexane where the distribution of the transverse relaxation times of the protons was recorded. The NMR relaxation measurements were performed on samples extracted from specimens maintained at 300 freeze–thaw cycles and on control samples extracted from specimens kept in water during the freeze–thaw period. Scanning Electron Microscopy (SEM) was used to analyze the microstructure of concrete samples in order to obtain information about the pore sizes and the distance between them. The results from the NMR relaxation measurements were consistent with those obtained by using standard techniques for determining the porosity and the freeze–thaw resistances. The investigations made it possible to establish the optimal composition of blast furnace slag that can be incorporated into road concrete compositions. This non-invasive technique can also complete standard techniques for assessing the porosity and the progress of internal cracks during the freeze–thaw test.

SHORT-RANGE AND LONG-RANGE ORDER OF TITANIUM IN Ti1+xS2

1977 ◽  
Vol 38 (C7) ◽  
pp. C7-202-C7-206 ◽  
Author(s):  
R. MORET ◽  
M. HUBER ◽  
R. COMÈS
Keyword(s):  
Long Range ◽  
Short Range ◽  
Range Order ◽  
Long Range Order

scholarly journals Short range smectic order driving long range nematic order: example of cuprates

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
R. S. Markiewicz ◽  
J. Lorenzana ◽  
G. Seibold ◽  
A. Bansil
Keyword(s):  
Long Range ◽  
Short Range ◽  
Nematic Order

ANDERSON LOCALIZATION FOR A MULTIDIMENSIONAL MODEL INCLUDING LONG RANGE POTENTIALS AND DISPLACEMENTS

2002 ◽  
Vol 14 (03) ◽  
pp. 273-302 ◽  
Author(s):  
HERIBERT ZENK
Keyword(s):  
Long Range ◽  
Anderson Model ◽  
Anderson Localization ◽  
Short Range ◽  
Energy Interval ◽  
Multidimensional Model ◽  
Short Summary

We give a short summary on how to combine and extend results of Combes and Hislop [2] (short range Anderson model with additional displacements), Kirsch, Stollmann and Stolz [13] and [14] (long range Anderson model without displacements) to get localization in an energy interval above the infimum of the almost sure spectrum for a continuous multidimensional Anderson model including long range potentials and displacements.

Identification of a Collapsed Intermediate with Non-native Long-range Interactions on the Folding Pathway of a Pair of Fyn SH3 Domain Mutants by NMR Relaxation Dispersion Spectroscopy

2006 ◽  
Vol 363 (5) ◽  
pp. 958-976 ◽  
Author(s):  
Philipp Neudecker ◽  
Arash Zarrine-Afsar ◽  
Wing-Yiu Choy ◽  
D. Ranjith Muhandiram ◽  
Alan R. Davidson ◽  
...  
Keyword(s):  
Long Range ◽  
Nmr Relaxation ◽  
Sh3 Domain ◽  
Relaxation Dispersion ◽  
Folding Pathway ◽  
Long Range Interactions

Study on the relationships of mechanical performance with the short-range and long-range structure of 500–900℃ carbonized fiber

2014 ◽  
Vol 45 (1) ◽  
pp. 33-47 ◽  
Author(s):  
Xue Lin ◽  
Chengguo Wang ◽  
Meijie Yu ◽  
Zhitao Lin ◽  
Yuzhen Liu
Keyword(s):  
Long Range ◽  
Short Range ◽  
Mechanical Performance
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