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2019-03-11
10:28
OpenAccess [PUBDB-2019-01429] Journal Article
et al
Ceramic-Reinforced $\gamma$-TiAl-Based Composites: Synthesis, Structure, and Properties
Materials 12(4), 629 () [10.3390/ma12040629]  GO
In this study, new multilayer TiAl-based composites were developed and characterized. The materials were produced by spark plasma sintering (SPS) of elemental Ti and Al foils and ceramic particles (TiB$_2$ and TiC) at 1250 °C [...]
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ddc:600
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2019-03-05
13:09
OpenAccess [PUBDB-2019-01333] Journal Article
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Hierarchical supercrystalline nanocomposites through the self-assembly of organically-modified ceramic nanoparticles
Biomaterials often display outstanding combinations of mechanical properties thanks to theirhierarchical structuring, which occurs through a dynamically and biologically controlled growth andself-assembly of their main constituents, typically mineral and protein. However, it is still challenging toobtain this ordered multiscale structural organization in synthetic 3D-nanocomposite materials. [...]
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2019-03-01
11:48
OpenAccess [PUBDB-2019-01274] Journal Article
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Sensitivity comparison of absorption and grating-based phase tomography of paraffin-embedded human brain tissue
Applied physics letters 114(8), 083702 () [10.1063/1.5085302]  GO
Advances in high-resolution hard X-ray computed tomography have led to the field of virtual histology to complement histopathological analyses. Phase-contrast modalities have been favored because, for soft tissues, the real part of the refractive index is orders of magnitude greater than the imaginary part. [...]
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ddc:530
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2019-02-26
12:21
[PUBDB-2019-01255] Journal Article
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Advancing knowledge of electrochemically generated lithium microstructure and performance decay of lithium ion battery by synchrotron X-ray tomography
Materials today 23, S1369702118311131 () [10.1016/j.mattod.2018.11.003]  GO
An intrinsic knowledge gap between current understandings obtained experimentally and the underlying working or degradation mechanisms of rechargeable lithium batteries still remains, giving direct rise to application challenges, e.g., safety issues, predicaments in identifying performance-aging factors and dilemmas in guiding further research directions. Against this background, non-destructive and three-dimensional (synchrotron) X-ray tomography that guarantees a direct visual access to inner electrodes has been employed herein to: in-situ record the evolution of internal short circuits; characterize the behaviors of widely employed separators; investigate the morphological evolution of Li electrodes under different cycling conditions; and study the degradation mechanisms of Li/carbon cells. [...]
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ddc:670
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2019-02-19
13:44
[PUBDB-2019-01171] Journal Article
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Strain and stress analyses on thermally annealed Ti-Al-N/Mo-Si-B multilayer coatings by synchrotron X-ray diffraction
In order to analyse the main failure mechanism of multilayered coating material in oxidative environments, we separately investigated the cross-sectional strain/stress evolution induced by thermal loads and oxidation for the Ti-Al-N/Mo-Si-B model system. The bilayer period (Λ) of the crystalline Ti-Al-N/amorphous Mo-Si-B layers was varied between 26, 130, 240, and 1085 nm. [...]
ddc:670
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2019-02-19
13:42
[PUBDB-2019-01170] Journal Article
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Comparison Study of Internal Stress Measured by Diffraction Mapping and Calculation Using FEM
The measuring of internal stress has not only a great scientific aspect, but is particularly important for nondestructive description of component or products in industry. It is expected that exceeding of local mechanical limits in the material can have catastrophic consequences. [...]
ddc:670
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2019-02-13
16:09
OpenAccess [PUBDB-2019-01079] Journal Article
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Curcumin- and Fish Oil-Loaded Spongosome and Cubosome Nanoparticles with Neuroprotective Potential against $H_{2}O_{2}$ -Induced Oxidative Stress in Differentiated Human SH-SY5Y Cells
ACS omega 4(2), 3061 - 3073 () [10.1021/acsomega.8b03101]  GO
Many phytochemical antioxidant compounds, including curcumin (CU), are water-insoluble and thus require delivery carriers in order to increase their bioavailability for in vivo applications. Oxidative stress-related apoptosis is a common cause for the neuronal loss in the progression of neurodegenerative diseases [...]
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ddc:660
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2019-02-13
13:25
OpenAccess [PUBDB-2019-01074] Journal Article
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Increase in the Mechanical Strength of Mg-8Gd-3Y-1Zn Alloy Containing Long-Period Stacking Ordered Phases Using Equal Channel Angular Pressing Processing
Metals 9(2), 221 () [10.3390/met9020221]  GO
The evolution of the microstructure and mechanical properties during equal channelangular pressing processing has been studied in an extruded Mg-Gd-Y-Zn alloy containinglong-period stacking ordered phases. After extrusion, the microstructure is characterized by thepresence of long-period stacking ordered fibers elongated along the extrusion direction within themagnesium matrix. [...]
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2019-02-13
11:02
[PUBDB-2019-01072] Contribution to a conference proceedings/Contribution to a book
et al
Deformation and Recrystallization Mechanisms and Their Influence on the Microstructure Development of Rare Earth Containing Magnesium Sheets
Magnesium Technology 2018 / Orlov, Dmytro (Editor) ; Cham : Springer International Publishing, 2018, Chapter 33 ; ISSN: 2367-1181=2367-1696 ; ISBN: 978-3-319-72331-0=978-3-319-72332-7 ; doi:10.1007/978-3-319-72332-7
The 147th Annual Meeting & Exhibition of the Minerals, Metals & Materials Society, TMS, ArizonaArizona, USA, 11 Mar 2018 - 15 Mar 20182018-03-112018-03-15
Cham : Springer International Publishing, The Minerals, Metals & Materials Series 209 - 216 () [10.1007/978-3-319-72332-7_33]  GO
Many studies have shown that textures with less distinct alignment of basal planes and the related improvement of formability are found in alloys that contain rare-earth (RE) elements and zinc. However, the effect of the combination of these additional elements on the texture modification has not been yet clearly understood. [...]
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2019-02-11
17:02
Embargoed OpenAccess [PUBDB-2019-01033] Journal Article
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A vesicle-to-sponge transition via the proliferation of membrane-linking pores in $ω-3$ polyunsaturated fatty acid-containing lipid assemblies
We investigate the nanostructure evolution and the membrane reorganization of diluted lipid dispersions of self-assembled monoolein (MO)/eicosapentaenoic acid (EPA, 20:5) mixtures by synchrotron small-angle X-ray scattering (SAXS) and cryogenic transmission electron microscopy (cryo-TEM) microscopy. The nonlamellar lipid phase containing a ω-3 polyunsaturated fatty acid was fragmented into stable nanoscale objects with the help of PEGylated lipids. [...]
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ddc:540
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