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2020-02-12
09:48
OpenAccess [PUBDB-2020-00698] Journal Article
et al
Ageing Behaviour of Al–Mg–Si Alloys After Cryogenic and Room Temperature Deformation
Materials 13(3), 554 - () [10.3390/ma13030554]  GO
The aim of this study is to investigate the effects of cryogenic and room temperature pre-deformation on subsequent artificial ageing of Al–Mg–Si alloys. Naturally aged and pre-aged samples were strained to 5%, 10% and 20% at RT (25 °C) and under liquid nitrogen, and artificially aged at 185 °C. [...]
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ddc:600
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2020-02-04
20:04
[PUBDB-2020-00632] Journal Article
et al
Structure of strontium tellurite glass, anti-glass and crystalline phases by high-energy X-ray diffraction, reverse Monte Carlo and Rietveld analysis
The structures of xSrO–(100 − x)TeO2 (x = 5, 7.5, 8.5 and 10 mol.%) glass, anti-glass and crystalline samples were studied by high-energy X-ray diffraction (HEXRD), reverse Monte Carlo (RMC) simulations, atomic pair distribution function analysis and Fullprof Rietveld refinement. The atomic pair distributions show the first peak at 1.90 Å due to the Te—O equatorial bonds and the Te—O peak is asymmetrical due to the range of Te—O bond lengths in glass, anti-glass and crystalline samples. [...]
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ddc:530
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2020-02-03
12:12
[PUBDB-2020-00624] Journal Article
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Crystal-structure of active layers of small molecule organic photovoltaics before and after solvent vapor annealing
It is demonstrated by a detailed structural analysis that the crystallinity and the efficiency of small molecule based organic photovoltaics can be tuned by solvent vapor annealing (SVA). Blends made of the small molecule donor 2,2′-[(3,3′″,3″″,4′-tetraoctyl[2,2′:5′,2″:5″,2′″:5′″,2″″-quinquethiophene]-5,5″″-diyl)bis[(Z)-methylidyne(3-ethyl-4-oxo-5,2-thiazolidinediylidene)]]bis-propanedinitrile (DRCN5T) and the acceptor [6,6]-phenyl C71 butyric acid methyl ester (PC71BM) were annealed using solvent vapors with either a high solubility for the donor (tetrahydrofuran), the acceptor (carbon disulfide) or both (chloroform). [...]
ddc:540
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2020-01-20
15:07
[PUBDB-2020-00428] Contribution to a conference proceedings/Contribution to a book

Orientation of crystallites in natural rubber under different modes of load.
Constitutive Models for Rubber XI: Proceedings of the 11th European Conference on Constitutive Models for Rubber (ECCMR 2019)
11th European Conference on Constitutive Models for Rubber, ECCMR 2019, NantesNantes, France, 25 Jun 2019 - 27 Jun 20192019-06-252019-06-27
Taylor & Francis 20-23 ()
Elastomer materials are a group of materials with vicso-elastic properties. Due to these properties the energy dissipation occurs under loading process and leads to the dissipative heating. [...]

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2020-01-20
14:29
[PUBDB-2020-00427] Journal Article
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Compression experiments to 126 GPa and 2500 K and thermal equation of state of $Fe_{3}S$: Implications for sulphur in the Earth's core
Pressure-volume-temperature (P-V-T) experiments on tetragonal Fe3S were conducted to 126 GPa and 2500 K in laser-heated diamond anvil cells (DAC) with in-situ X-ray diffraction (XRD). Seventy nine high-T data as well as four 300-K data were collected, based on which new thermal equations of state (EoS) for Fe3S were established. [...]
ddc:550
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2020-01-15
15:10
[PUBDB-2020-00321] Journal Article
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A Titanium(IV)-Based Metal-Organic Framework Featuring Defect-Rich Ti-O Sheets as an Oxidative Desulfurization Catalyst
While titanium‐based metal–organic frameworks (MOFs) have been widely studied for their (photo)catalytic potential, only a few TiIV MOFs have been reported owing to the high reactivity of the employed titanium precursors. The synthesis of COK‐47 is now presented, the first Ti carboxylate MOF based on sheets of TiIVO6 octahedra, which can be synthesized with a range of different linkers. [...]
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ddc:540
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2020-01-15
12:48
[PUBDB-2020-00299] Journal Article
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A Comparative Study of the Ionic Cocrystals NaX(α-d-Glucose)$_2$ (X = Cl, Br, I)
Crystal growth & design 19(8), 4293 - 4299 () [10.1021/acs.cgd.8b01929]  GO
The mechanochemical formation of the ionic cocrystals of glucose (Glc) and sodium salts Glc2NaCl·H2O (1) and Glc2NaX (X = Br (2), I (3)) is presented. Products are formed by co-milling Glc with three sodium salts (NaCl, NaBr, NaI). [...]
ddc:540
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2020-01-15
12:07
[PUBDB-2020-00294] Journal Article
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Thermal expansion and P-V-T equation of state of cubic silicon nitride
We performed in-situ X-ray diffraction measurements of polycrystalline cubic silicon nitride samples at high temperatures under atmospheric pressure and at simultaneous high-pressure-temperature conditions. In air, cubic silicon nitride survives metastably up to 1733 K without oxidation. [...]
ddc:660
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2020-01-15
11:21
OpenAccess [PUBDB-2020-00281] Journal Article
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Pressure-Induced Hydrogen-Hydrogen Interaction in Metallic FeH Revealed by NMR
Knowledge of the behavior of hydrogen in metal hydrides is the key for understanding their electronicproperties. Here, we present an 1H-NMR study of cubic FeH up to 202 GPa.We observe a distinct deviationfrom the ideal metallic behavior between 64 and 110 GPa that suggests pressure-induced H-H interactions.Accompanying ab initio calculations support this result, as they reveal the formation of an intercalatingsublattice of electron density, which enhances the hydrogen contribution to the electronic density of statesat the Fermi level. [...]
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ddc:530
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2020-01-15
10:14
OpenAccess [PUBDB-2020-00275] Journal Article
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Multimodal X-ray imaging of nanocontainer-treated macrophages and calcium distribution in the perilacunar bone matrix
Studies of biological systems typically require the application of several complementary methods able to yield statistically-relevant results at a unique level of sensitivity. Combined X-ray fluorescence and ptychography offer excellent elemental and structural imaging contrasts at the nanoscale. [...]
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ddc:600
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